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         Displaying: 1 - 4216
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         4216 Records Found 
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     | 
   NAMES | 
   RRUFF ID | 
   IDEAL CHEMISTRY | 
   SOURCE | 
   LOCALITY | 
   OPTIONS | 
   | 
   | Abelsonite | 
  R070007 | 
  NiC31H32N4 | 
  Geophysical Laboratory, Carnegie Institution of Washington  | 
  Green River Formation, Utah, USA | 
  
           
   | 
   | 
   | Abhurite | 
  R060227 | 
  Sn2+21O6(OH)14Cl16 | 
  Michael Scott S100143 | 
  Wreck of the SS Cheerful, 14 miles NNW of St. Ives, Cornwall, England | 
  
           
   | 
   | 
   | Abramovite | 
  R070037 | 
  Pb2SnInBiS7 | 
  Michael Scott S105107 | 
  Kudryaviy Volcano, Iturup Island, Kurilian Archipelago, Russia | 
  
           
   | 
   | 
   | Acanthite | 
  R070578 | 
  Ag2S | 
  Royal Ontario Museum M41550 | 
  Echo Bay mine, Port Radium, Northwest Territories, Canada | 
  
           
   | 
   | 
   | Acanthite | 
  R080016 | 
  Ag2S | 
  William W. Pinch  | 
  Imiter mine, Djebel Sarhro, near Quarzazate, Anti Atlas Mountains, Morocco | 
  
           
   | 
   | 
   | Actinolite | 
  R040063 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 6789 | 
  Harford County, Maryland, USA | 
  
           
   | 
   | 
   | Actinolite | 
  R040064 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 5318 | 
  Ehime Perfecture, Uma Gun, Japan | 
  
           
   | 
   | 
   | Actinolite | 
  R050025 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  Eugene Schlepp  | 
  Tyrol, Austria | 
  
           
   | 
   | 
   | Actinolite | 
  X050001 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  George R. Rossman GRR-232 | 
  Siberia, Russia | 
  
           
   | 
   | 
   | Actinolite | 
  X050002 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  UCLA MS 2842 | 
  Lone Pine Canyon, San Diego County, California, USA | 
  
           
   | 
   | 
   | Actinolite | 
  X050003 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  UCLA MS 2843 | 
  Cloverdale Highway, California | 
  
           
   | 
   | 
   | Actinolite | 
  X050004 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  California Institute of Technology 299 | 
  One mile north Summit Reservoir, Berkeley, California | 
  
           
   | 
   | 
   | Actinolite | 
  R050336 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  California Institute of Technology W-5612 | 
  Kragerø, Norway | 
  
           
   | 
   | 
   | Actinolite | 
  R060045 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 13272 | 
  Colorado, USA | 
  
           
   | 
   | 
   | Actinolite | 
  R060041 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 4212 | 
  Prince of Wales Island, Alaska, USA | 
  
           
   | 
   | 
   | Actinolite | 
  R120010 | 
  ◻Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 
  Donald Doell  | 
  Quebec Lithium Corporation mine, La Corne, Abitibi RCM, Abitibi-Temiscamingue, Quebec, Canada | 
  
           
   | 
   | 
   | Adachiite | 
  R230014 | 
  CaFe2+3Al6(Si5AlO18)(BO3)3(OH)3(OH) | 
  Boriana Mihailova S43 | 
  Kiura mine, Oita prefecture, Japan | 
  
           
   | 
   | 
   | Adamite | 
  R040130 | 
  Zn2(AsO4)(OH) | 
  Bob Downs  | 
  Mina Ojuela, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Adamite | 
  R050020 | 
  Zn2(AsO4)(OH) | 
  Eugene Schlepp  | 
  Mina Ojuela, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Adamite | 
  R060593 | 
  Zn2(AsO4)(OH) | 
  Michael Scott S100793 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Adamsite-(Y) | 
  R070360 | 
  NaY(CO3)2·6H2O | 
  Michael Scott S103012 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Adanite | 
  R190033 | 
  Pb2(Te4+O3)(SO4) | 
  John Callahan  | 
  Tombstone, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Adelite | 
  R060687 | 
  CaMg(AsO4)(OH) | 
  Michael Scott S101296 | 
  Jakobsberg mine,  Nordmark,  Filipstad,  Varmland,  Sweden | 
  
           
   | 
   | 
   | Adelite | 
  R140962 | 
  CaMg(AsO4)(OH) | 
  Marcus Origlieri  | 
  Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Aegirine | 
  R040054 | 
  NaFe3+Si2O6 | 
  Bob Downs  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Aegirine | 
  R050074 | 
  NaFe3+Si2O6 | 
  Rock Currier  | 
  Mt. Malosa, Zomba, Chilwa, Alkaline Area, Malawi | 
  
           
   | 
   | 
   | Aegirine | 
  R061093 | 
  NaFe3+Si2O6 | 
  Michael Scott S102017 | 
  Lacotal Breccia, Alto Chapere, Cochabamba, Bolivia | 
  
           
   | 
   | 
   | Aegirine | 
  R070125 | 
  NaFe3+Si2O6 | 
  Mark Mauthner 3266 | 
  Ice River Alkaline Complex, Golden, British Columbia, Canada | 
  
           
   | 
   | 
   | Aegirine | 
  R070253 | 
  NaFe3+Si2O6 | 
  Michael Scott S102622 | 
  Lovozero Massif, Kola Peninsula, Murmanskaya Oblast'; Northern Region, Russia | 
  
           
   | 
   | 
   | Aegirine | 
  R120144 | 
  NaFe3+Si2O6 | 
  Ikram Mineralogy  | 
  Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan | 
  
           
   | 
   | 
   | Aegirine | 
  R120167 | 
  NaFe3+Si2O6 | 
  Rock Currier  | 
  Locotal metaevaporite breccia, Alto Chapare, Cochabamba Dept, Bolivia | 
  
           
   | 
   | 
   | Aenigmatite | 
  R061088 | 
  Na4[Fe2+10Ti2]O4[Si12O36] | 
  Michael Scott S103019 | 
  Naujakasik, Greenland | 
  
           
   | 
   | 
   | Aenigmatite | 
  R061089 | 
  Na4[Fe2+10Ti2]O4[Si12O36] | 
  Michael Scott S103020 | 
  Eveslogchorr, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Aerinite | 
  R050610 | 
  (Ca,Na)6(Fe3+,Fe2+,Mg,Al)4(Al,Mg)6Si12O36(OH)12(CO3)·12H2O | 
  University of Arizona Mineral Museum  | 
  Estopinian, Province of Huesca, Spain | 
  
           
   | 
   | 
   | Aeschynite-(Y) | 
  R060312 | 
  (Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6 | 
  Herb Obodda 013 | 
  Hittero, Vest-Agder, Norway | 
  
           
   | 
   | 
   | Aeschynite-(Y) | 
  R080045 | 
  (Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6 | 
  Herb Obodda  | 
  Hittero, Vest-Agder, Norway | 
  
           
   | 
   | 
   | Afghanite | 
  R060422 | 
  (Na,K)22Ca10(Si24Al24)O96(SO4)6Cl6 | 
  Herb Obodda 113 | 
  Kokscha Valley, Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Afghanite | 
  R070558 | 
  (Na,K)22Ca10(Si24Al24)O96(SO4)6Cl6 | 
  Farooq Hashmi  | 
  Badakhshan, Afghanistan | 
  
           
   | 
   | 
   | Afmite | 
  R130082 | 
  Al3(OH)4(H2O)3(PO4)(PO3OH)·H2O | 
  Anthony R. Kampf and George R. Rossman  | 
  Fumade (hamlet), Castelnau-de-Brassac (village), Tarn, France | 
  
           
   | 
   | 
   | Afwillite | 
  R070296 | 
  Ca3[SiO4][SiO2(OH)2]·2H2O | 
  Michael Scott S100454 | 
  Hatrurim Formation, Negev Desert, West of Dead Sea, southern Israel | 
  
           
   | 
   | 
   | Afwillite | 
  R080022 | 
  Ca3[SiO4][SiO2(OH)2]·2H2O | 
  Michael Scott S101176 | 
  Crestmore Quarry, Riverside County, Jurupa Mountains, California, USA | 
  
           
   | 
   | 
   | Afwillite | 
  R141097 | 
  Ca3[SiO4][SiO2(OH)2]·2H2O | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Agakhanovite-(Y) | 
  R230012 | 
  YCa◻2KBe3Si12O30 | 
  Frank Hawthorne  | 
  Heftetjern pegmatite, Tørdal, Southern Norway | 
  
           
   | 
   | 
   | Agardite-(Y) | 
  R060711 | 
  YCu2+6(AsO4)3(OH)6·3H2O | 
  Bob Jenkins  | 
  Brumado, Bahia, Brazil | 
  
           
   | 
   | 
   | Agardite-(Y) | 
  R060924 | 
  YCu2+6(AsO4)3(OH)6·3H2O | 
  Bob Jenkins  | 
  Bou Skour mine, Djebel Sarhro, Morocco | 
  
           
   | 
   | 
   | Agardite-(Y) | 
  R070357 | 
  YCu2+6(AsO4)3(OH)6·3H2O | 
  Michael Scott S103028 | 
  Hayashi, Setoda, Ikuchi Island, Hiroshima Prefecture, Chugoku Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Agardite-(Y) | 
  R070649 | 
  YCu2+6(AsO4)3(OH)6·3H2O | 
  Bob Jenkins  | 
  Jote West mine, Pampa Larga Mining District, Copiapo, Chile | 
  
           
   | 
   | 
   | Agrellite | 
  R060914 | 
  NaCa2Si4O10F | 
  Royal Ontario Museum M52454 | 
  Kipawa complex, Quebec, Canada | 
  
           
   | 
   | 
   | Agrinierite | 
  R130139 | 
  K2Ca[(UO2)3O3(OH)2]2·5H2O | 
  Rock Currier  | 
  Margnac, France | 
  
           
   | 
   | 
   | Aheylite | 
  R070070 | 
  Fe2+Al6(PO4)4(OH)8·4H2O | 
  Bob Jenkins  | 
  Huanuni, Bolivia | 
  
           
   | 
   | 
   | Aheylite | 
  R070171 | 
  Fe2+Al6(PO4)4(OH)8·4H2O | 
  Michael Scott S101593 | 
  Bali Lo, Ashburton Downs, Western Australia, Australia | 
  
           
   | 
   | 
   | Ahlfeldite | 
  R100210 | 
  Ni(SeO3)·2H2O | 
  William W Pinch  | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Ahrensite | 
  R230013 | 
  SiFe2O4 | 
  Chi Ma  | 
  Tissint meteorite, likely from Mars | 
  
           
   | 
   | 
   | Aikinite | 
  R100117 | 
  CuPbBiS3 | 
  Robert Woodside  | 
  British Columbia Molybdenum mine, Kitsault, Alice Arm, British Columbia, Canada | 
  
           
   | 
   | 
   | Ajoite | 
  R060735 | 
  K3Cu2+20Al3Si29O76(OH)16·8H2O | 
  Bob Jenkins  | 
  Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Ajoite | 
  R120018 | 
  K3Cu2+20Al3Si29O76(OH)16·8H2O | 
  Ron Gibbs  | 
  New Cornelia mine, Ajo, Arizona, USA | 
  
           
   | 
   | 
   | Akatoreite | 
  R060230 | 
  Mn2+9Al2Si8O24(OH)8 | 
  Michael Scott S100146 | 
  near mouth of Akatore Creek, Taieri, Otago Province, New Zealand | 
  
           
   | 
   | 
   | Åkermanite | 
  R061085 | 
  Ca2MgSi2O7 | 
  Michael Scott S101598 | 
  Kovdor, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Åkermanite | 
  R061100 | 
  Ca2MgSi2O7 | 
  Michael Scott S101600 | 
  Lago de Vico, Viterbo, Italy | 
  
           
   | 
   | 
   | Akrochordite | 
  R100028 | 
  MnMn2Mn2(AsO4)2(OH)4(H2O)4 | 
  William W. Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Alabandite | 
  R070174 | 
  MnS | 
  Michael Scott S101601 | 
  Mina Preciosa, Sangue de Cristo, Puebla, Mexico | 
  
           
   | 
   | 
   | Alacránite | 
  R140323 | 
  As8S9 | 
  Renato and Adriana Pagano  | 
  Solfatara di Pozzuoli, Napoli, Italy | 
  
           
   | 
   | 
   | Alacránite | 
  R150030 | 
  As8S9 | 
  Renato and Adriana Pagano  | 
  Solfatara di Pozzuoli, Napoli, Italy | 
  
           
   | 
   | 
   | Alamosite | 
  R060067 | 
  PbSiO3 | 
  University of Arizona Mineral Museum 16087 | 
  Alamos, Sonora, Mexico | 
  
           
   | 
   | 
   | Albite | 
  R040068 | 
  Na(AlSi3O8) | 
  University of Arizona Mineral Museum 14023 | 
  Harding Pegmatite, Dixon, New Mexico, USA | 
  
           
   | 
   | 
   | Albite | 
  R040129 | 
  Na(AlSi3O8) | 
  Bob Downs  | 
  LaChance Quarry, Brunswick, Cumberland County, Maine, USA | 
  
           
   | 
   | 
   | Albite | 
  X050005 | 
  Na(AlSi3O8) | 
  George R. Rossman GRR-901 | 
  Blue Lady mine, Chihuahua Valley, San Diego County, California, USA | 
  
           
   | 
   | 
   | Albite | 
  X050006 | 
  Na(AlSi3O8) | 
  George R. Rossman GRR-756 | 
  Kioo Hills, Kenya | 
  
           
   | 
   | 
   | Albite | 
  X050007 | 
  Na(AlSi3O8) | 
  George R. Rossman GRR-1610 | 
  New Melones Dam, Calaveras County, California | 
  
           
   | 
   | 
   | Albite | 
  X050008 | 
  Na(AlSi3O8) | 
  George R. Rossman GRR-1609 | 
  Pederineira mine, San Jose da Safria, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Albite | 
  X050014 | 
  Na(AlSi3O8) | 
  George R. Rossman GRR-1550 | 
  Sannidal, Norway | 
  
           
   | 
   | 
   | Albite | 
  X050127 | 
  Na(AlSi3O8) | 
  G.R. Rossman 1085 | 
  Madagascar | 
  
           
   | 
   | 
   | Albite | 
  R050253 | 
  Na(AlSi3O8) | 
  Marcus Origlieri  | 
  Madawaska/Faraday mine, Bancroft, Ontario, Canada | 
  
           
   | 
   | 
   | Albite | 
  R050402 | 
  Na(AlSi3O8) | 
  Bob Downs  | 
  Urbano mine, Golconda District, Brazil | 
  
           
   | 
   | 
   | Albite | 
  R060054 | 
  Na(AlSi3O8) | 
  Marcus Origlieri  | 
  Mt. Erebus, Antarctica | 
  
           
   | 
   | 
   | Albite | 
  R070268 | 
  Na(AlSi3O8) | 
  Michael Scott S104223 | 
  Kitty Hawk, North Carolina, USA | 
  
           
   | 
   | 
   | Albite | 
  R100169 | 
  Na(AlSi3O8) | 
  Mineralogical Museum, Harvard University 131705 | 
  Rutherford#2 Mine, Amelia, Amelia county, Virginia, USA | 
  
           
   | 
   | 
   | Albite | 
  R180031 | 
  Na(AlSi3O8) | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Albite | 
  R230008 | 
  Na(AlSi3O8) | 
  Allaz Julien  | 
  Piz Beverin, canton Graubünden, Switzerland | 
  
           
   | 
   | 
   | Aldermanite | 
  R100073 | 
  [Mg(H2O)6][Na(H2O)2Al3(PO4)2(OH)6]·H2O | 
  Marcus Origlieri  | 
  Tom's quarry, Kapunda, South Australia, Australia | 
  
           
   | 
   | 
   | Aldomarinoite | 
  R220034 | 
  Sr2Mn3+(AsO4)2(OH) | 
  Fernando Cámara  | 
  Valletta mine, Maira Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Aleksite | 
  R070011 | 
  PbBi2Te2S2 | 
  Michael Scott S105102 | 
  Kochkar gold mine, Cheljabinsk district, southern Urals, Russia | 
  
           
   | 
   | 
   | Alforsite | 
  R070356 | 
  Ba5(PO4)3Cl | 
  Michael Scott S102968 | 
  Madrelena mine, Tres Pozos, Baja California Norte, Mexico | 
  
           
   | 
   | 
   | Alfredopetrovite | 
  R210014 | 
  Al2(Se4+O3)3·6H2O | 
  Bob Jenkins  | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Allabogdanite | 
  R070012 | 
  (Fe,Ni)2P | 
  Michael Scott S105103 | 
  Onello meteorite, Bol'shoy Dolguchan River, Onello River Basin, Aldan, Yakutia, Russia | 
  
           
   | 
   | 
   | Allactite | 
  R070175 | 
  Mn2+7(AsO4)2(OH)8 | 
  Michael Scott S102971 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Allactite | 
  R150120 | 
  Mn2+7(AsO4)2(OH)8 | 
  Steven Kuitems  | 
  Sterling Mine, 1200' Level, Ogdensburg, New Jersey, USA | 
  
           
   | 
   | 
   | Allanite-(Ce) | 
  R050043 | 
  CaCe(Al2Fe2+)[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 4499 | 
  Arendal, Norway | 
  
           
   | 
   | 
   | Allanite-(Ce) | 
  R060418 | 
  CaCe(Al2Fe2+)[Si2O7][SiO4]O(OH) | 
  John Weber  | 
  Aquarius Range, Mohave County, Arizona, USA | 
  
           
   | 
   | 
   | Allanite-(Ce) | 
  R080044 | 
  CaCe(Al2Fe2+)[Si2O7][SiO4]O(OH) | 
  John Weber  | 
  Aquarius Range, Mohave County, Arizona, USA | 
  
           
   | 
   | 
   | Allanite-(Ce) | 
  R080092 | 
  CaCe(Al2Fe2+)[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 4499 | 
  Arendal, Norway | 
  
           
   | 
   | 
   | Allanite-(La) | 
  R070246 | 
  CaLa(Al2Fe2+)[Si2O7][SiO4]O(OH) | 
  Michael Scott S102978 | 
  Nueva Vizcaya Mine, Burguillos del Cerro, Badajoz, Extremadura, Spain | 
  
           
   | 
   | 
   | Allanpringite | 
  R080147 | 
  Fe3+3(PO4)2(OH)3·5H2O | 
  Steffan Jahn  | 
  Mark mine, Essershausen, Weilburg, Wetzlar, Hesse, Germany | 
  
           
   | 
   | 
   | Alleghanyite | 
  R060904 | 
  Mn2+5(SiO4)2(OH)2 | 
  Michael Scott S100995 | 
  Near Bald Knob, Alleghany County, North Carolina, USA | 
  
           
   | 
   | 
   | Alleghanyite | 
  R070378 | 
  Mn2+5(SiO4)2(OH)2 | 
  William W. Pinch  | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Alloclasite | 
  R110002 | 
  CoAsS | 
  Marcus Origlieri  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Allophane | 
  R070188 | 
  Al2O3(SiO2)1.3-2.0·2.5-3.0H2O | 
  Michael Scott S102984 | 
  Old Gold Hill mine, Tooele County, Utah | 
  
           
   | 
   | 
   | Allophane | 
  R120001 | 
  Al2O3(SiO2)1.3-2.0·2.5-3.0H2O | 
  Robert Jenkins  | 
  Juanita mine, Kelly, New Mexico, USA | 
  
           
   | 
   | 
   | Alloriite | 
  R070560 | 
  (Na,K,Ca)24(Na,Ca)4Ca4(Si,Al)48O96(SO4)4(SO3,CO3)2(OH,Cl)2(H2O,OH)4 | 
  Michael Scott S1001435 | 
  Monte Cavalluccio, near Campagnano di Roma, Rome, Latium, Italy | 
  
           
   | 
   | 
   | Alluaudite | 
  R160080 | 
  ◻NaMnFe3+2(PO4)3 | 
  Rock Currier  | 
  Buranga pegmatite, Gatumba District, Western Province, Rwanda | 
  
           
   | 
   | 
   | Alluaudite | 
  R160081 | 
  ◻NaMnFe3+2(PO4)3 | 
  Rock Currier  | 
  Green Monster mine, Trimble, South Dakota, USA | 
  
           
   | 
   | 
   | Alluaudite | 
  R160082 | 
  ◻NaMnFe3+2(PO4)3 | 
  Rock Currier  | 
  Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Alluaudite | 
  R140711 | 
  ◻NaMnFe3+2(PO4)3 | 
  Rock Currier  | 
  Dyke Lode, Custer, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Alluaudite | 
  R141067 | 
  ◻NaMnFe3+2(PO4)3 | 
  Rob Lavinsky  | 
  Pleasant Valley pegmatite, Fourmile, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Almandine | 
  R040076 | 
  Fe2+3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 7976 | 
  Barton Garnet mine, Gore Mountain, Warren County, New York, USA | 
  
           
   | 
   | 
   | Almandine | 
  R040079 | 
  Fe2+3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 13736 | 
  Ontario, Canada | 
  
           
   | 
   | 
   | Almandine | 
  R040168 | 
  Fe2+3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 16323 | 
  Pocos Dos Cavatos, Ceara, Brazil | 
  
           
   | 
   | 
   | Almandine | 
  R050029 | 
  Fe2+3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 4307 | 
  Barton Garnet mine, Gore Mountain, Warren County, New York, USA | 
  
           
   | 
   | 
   | Almandine | 
  X050009 | 
  Fe2+3Al2(SiO4)3 | 
  George R. Rossman GRR-943 | 
  Riverside County, California, USA | 
  
           
   | 
   | 
   | Almandine | 
  X050010 | 
  Fe2+3Al2(SiO4)3 | 
  George R. Rossman GRR-1056 | 
  Wrangel, Alaska, USA | 
  
           
   | 
   | 
   | Almandine | 
  X050011 | 
  Fe2+3Al2(SiO4)3 | 
  George R. Rossman GRR-43 | 
  Rutherford #2 mine, Amelia, Virginia, USA | 
  
           
   | 
   | 
   | Almandine | 
  R060099 | 
  Fe2+3Al2(SiO4)3 | 
  Roland Boehne  | 
  Alaska, USA | 
  
           
   | 
   | 
   | Almandine | 
  R060450 | 
  Fe2+3Al2(SiO4)3 | 
  Gemological Institute of America 16606 | 
  Canada | 
  
           
   | 
   | 
   | Almandine | 
  R070129 | 
  Fe2+3Al2(SiO4)3 | 
  Michael Scott S100422 | 
  Wrangell, Wrangell Island, Wrangell-Petersburg Borough, Alaska, USA | 
  
           
   | 
   | 
   | Almandine | 
  R100046 | 
  Fe2+3Al2(SiO4)3 | 
  William W Pinch  | 
  Altai, Xinjiang Province, China | 
  
           
   | 
   | 
   | Almandine | 
  R120145 | 
  Fe2+3Al2(SiO4)3 | 
  Ikram Mineralogy  | 
  Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan | 
  
           
   | 
   | 
   | Almandine | 
  R120152 | 
  Fe2+3Al2(SiO4)3 | 
  Eric Van Valkenburg  | 
  The garnet schist, Roxbury, Litchfield County, Connecticut, USA | 
  
           
   | 
   | 
   | Almandine | 
  R190023 | 
  Fe2+3Al2(SiO4)3 | 
  Robert Downs  | 
  Bella Vista mine, Mitkof Island, Alexander Archipelago, Alaska, USA | 
  
           
   | 
   | 
   | Alpha-D lactose monohydrate | 
  D120008 | 
   | 
  David Blake  | 
  Synthetic from Aldrich | 
  
           
   | 
   | 
   | AlSO4(OH) | 
  R141118 | 
   | 
  Alan J. Anderson  | 
  Only one crystal was synthesized hydrothermally at 700°C and ~1.0 GPa. | 
  
           
   | 
   | 
   | Alstonite | 
  R050483 | 
  BaCa(CO3)2 | 
  California Institute of Technology 7890 | 
  Minerva #1 mine, Cave-in-Rock, Hardin County, Illinois, USA | 
  
           
   | 
   | 
   | Alstonite | 
  R090049 | 
  BaCa(CO3)2 | 
  Bob Jenkins  | 
  Admiralty flats, Haggs mine, Nentsberry, Cumbria, England | 
  
           
   | 
   | 
   | Altaite | 
  R060939 | 
  PbTe | 
  Michael Scott S100891 | 
  870 Level, Mattagami mine, Matagami, Quebec, Canada | 
  
           
   | 
   | 
   | Alterite | 
  R180005 | 
  Zn2Fe3+4(SO4)4(C2O4)2(OH)4·17H2O | 
  Malcom Alter  | 
  Near Marble Canyon, Coconino County, Arizona, USA | 
  
           
   | 
   | 
   | Althausite | 
  R070113 | 
  Mg4(PO4)2(OH,O)(F,◻) | 
  Bob Jenkins  | 
  Tingelstadtjern, Modum, Norway | 
  
           
   | 
   | 
   | Alum-(K) | 
  R040134 | 
  KAl(SO4)2·12H2O | 
  University of Arizona Mineral Museum 9391 | 
  Alunite mine, Esmeralda County, Nevada, USA | 
  
           
   | 
   | 
   | Alum-(K) | 
  R060014 | 
  KAl(SO4)2·12H2O | 
  American Museum of Natural History 16802 | 
  Tolfa, Italy | 
  
           
   | 
   | 
   | Alum-(K) | 
  R060528 | 
  KAl(SO4)2·12H2O | 
  Michael Scott S100782 | 
  El Desierto mine fumaroles, Potosí, Bolivia | 
  
           
   | 
   | 
   | Alum-(Na) | 
  R110204 | 
  NaAl(SO4)2·12H2O | 
  Gordon W Downs  | 
  Flux mine, near Patagonia, Arizona | 
  
           
   | 
   | 
   | Aluminite | 
  R060691 | 
  Al2(SO4)(OH)4·7H2O | 
  Michael Scott S101225 | 
  Newhaven, East Sussex, England, United Kingdom | 
  
           
   | 
   | 
   | Aluminium | 
  R070230 | 
  Al | 
  Michael Scott S103000 | 
  Mud Volcano, Bulla Apsheren penninsula, Caspian Sea, Qobustan (Gobustan; Kobustan) Rayonu, Azerbaijan | 
  
           
   | 
   | 
   | Alumohydrocalcite | 
  R061067 | 
  CaAl2(CO3)2(OH)4·4H2O | 
  Michael Scott S100395 | 
  Lubom'ra, Czech Republic | 
  
           
   | 
   | 
   | Alumohydrocalcite | 
  R070516 | 
  CaAl2(CO3)2(OH)4·4H2O | 
  James Shigley  | 
  Mount Hamiliton, Santa Clara County, California, USA | 
  
           
   | 
   | 
   | Alumoklyuchevskite | 
  R070041 | 
  K3Cu2+3AlO2(SO4)4 | 
  Michael Scott S105109 | 
  main fracture, N breakthrough, Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Alunite | 
  R060430 | 
  KAl3(SO4)2(OH)6 | 
  Michael Scott S100144 | 
  Wendy Pit, El Indio Gold mine, Tambo, Coquimbo District, Chile | 
  
           
   | 
   | 
   | Alunite | 
  R070448 | 
  KAl3(SO4)2(OH)6 | 
  Bob Jenkins  | 
  Veta del Medio, Inca del Oro, Chile | 
  
           
   | 
   | 
   | Alunogen | 
  R060015 | 
  Al2(SO4)3(H2O)12·5H2O | 
  American Museum of Natural History 16646 | 
  Saxony, Germany | 
  
           
   | 
   | 
   | Alunogen | 
  R070601 | 
  Al2(SO4)3(H2O)12·5H2O | 
  James Shigley  | 
  Alum Grotto, Vulcano Island, Aeolian Islands, Messina, Sicily, Italy | 
  
           
   | 
   | 
   | Amarantite | 
  R050153 | 
  Fe3+2O(SO4)2·7H2O | 
  Jim McGlasson  | 
  Paposo, Antofagasta, Chile | 
  
           
   | 
   | 
   | Amber | 
  R060569 | 
   | 
  Michael Scott S100337 | 
  Baltic Sea Region, Poland | 
  
           
   | 
   | 
   | Amblygonite | 
  R040006 | 
  LiAl(PO4)F | 
  University of Arizona Mineral Museum 4801 | 
  Pala, San Diego County, California, USA | 
  
           
   | 
   | 
   | Amblygonite | 
  R040067 | 
  LiAl(PO4)F | 
  University of Arizona Mineral Museum 4802 | 
  Montebras, France | 
  
           
   | 
   | 
   | Amblygonite | 
  X050012 | 
  LiAl(PO4)F | 
  RD Shannon 56163- 54 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Ameghinite | 
  R060643 | 
  NaB3O3(OH)4 | 
  Michael Scott S100815 | 
  Tinkalayu mine, Salar del Hombre Muerto, Salta province, Argentina | 
  
           
   | 
   | 
   | Amesite | 
  R070132 | 
  Mg2Al(AlSiO5)(OH)4 | 
  Michael Scott S100414 | 
  Saranovskii mine, Saranovskaya Village, Gornozavodskii area, Permskaya Oblast', Middle Urals, Russia | 
  
           
   | 
   | 
   | Amesite | 
  R070116 | 
  Mg2Al(AlSiO5)(OH)4 | 
  Michael Scott S100416 | 
  Saranovskii Mine (Saranovskoye), Saranovskaya (Sarany; Saranje) Village, Gorozavod area, Permskaya Oblast', Urais Region, Russia | 
  
           
   | 
   | 
   | Amicite | 
  R080066 | 
  K2Na2(Al4Si4O16)·5H2O | 
  Michael Scott S100673 | 
  Kirovski Drive, Khibiny, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Aminoffite | 
  R100055 | 
  Ca3(BeOH)2Si3O10 | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Ammineite | 
  R120154 | 
  CuCl2·2NH3 | 
  Ron Gibbs  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Ammineite | 
  R120155 | 
  CuCl2·2NH3 | 
  Marcus Origlieri  | 
  Caleta Pabellon de Pica, Punta Colina, Iquique, I Region, Chile | 
  
           
   | 
   | 
   | Ammonioalunite | 
  R060873 | 
  (NH4)Al3(SO4)2(OH)6 | 
  Michael Scott S101298 | 
  Schöller mine, Kladno, Central Bohemia Region, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Ammoniojarosite | 
  R060408 | 
  (NH4)Fe3+3(SO4)2(OH)6 | 
  American Museum of Natural History 31246 | 
  Wamsutter, Sweetwater County, Wyoming, USA | 
  
           
   | 
   | 
   | Ammonioleucite | 
  R060104 | 
  (NH4)(AlSi2O6) | 
  University of Arizona Mineral Museum 16277 | 
  Tatarazawa Quarry, Fujioka Gunma Prefecture, Hunho Island, Japan | 
  
           
   | 
   | 
   | Ammoniomagnesiovoltaite | 
  R130079 | 
  (NH4)2Mg5Fe3+3Al(SO4)12·18H2O | 
  Sándor Szakall  | 
  Pécs-Vasas, Mecsek Mountains, South Hungary | 
  
           
   | 
   | 
   | Ammoniomathesiusite | 
  R200003 | 
  (NH4)5(UO2)4(SO4)4(VO5)·4H2O | 
  Travis Olds  | 
  Burro mine, Slick Rock, Colorado, USA | 
  
           
   | 
   | 
   | Amphibole | 
  R110203 | 
   | 
  Donald Doell  | 
  Bear Lake diggings, Tory Hill, Monmounth Township, Haliburton Co., Ontario, Canada | 
  
           
   | 
   | 
   | Analcime | 
  R040128 | 
  Na(AlSi2O6)·H2O | 
  Bob Downs  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Analcime | 
  R050094 | 
  Na(AlSi2O6)·H2O | 
  Rock Currier  | 
  Springfield, Oregon, USA | 
  
           
   | 
   | 
   | Analcime | 
  R060023 | 
  Na(AlSi2O6)·H2O | 
  Bob Downs  | 
  Dallas, Oregon, USA | 
  
           
   | 
   | 
   | Analcime | 
  R120095 | 
  Na(AlSi2O6)·H2O | 
  Robert Lavinsky  | 
  Daye area, Hubei, China | 
  
           
   | 
   | 
   | Anapaite | 
  R050510 | 
  Ca2Fe2+(PO4)2·4H2O | 
  University of Arizona Mineral Museum 1437 | 
  Prats-Sampsor, Spain | 
  
           
   | 
   | 
   | Anapaite | 
  R141081 | 
  Ca2Fe2+(PO4)2·4H2O | 
  Rock Currier  | 
  Messel mine, Messel, Darmstadt, Hesse, Germany | 
  
           
   | 
   | 
   | Anatase | 
  R060277 | 
  TiO2 | 
  Herb Obodda 064 | 
  Taftan, near Dalbandi, Baluchistan Province, Pakistan | 
  
           
   | 
   | 
   | Anatase | 
  R070582 | 
  TiO2 | 
  James Shigley  | 
  Asker, Akershus, Norway | 
  
           
   | 
   | 
   | Anatase | 
  R120013 | 
  TiO2 | 
  Donald Doell  | 
  Governor's Lake pegmatite, Halifax County, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Anatase | 
  R120064 | 
  TiO2 | 
  Donald Doell  | 
  East Kemptville Tin mine, East Kemptville, Argyle, Yarmouoth Co., Nova Scotia, Canada | 
  
           
   | 
   | 
   | Ancylite-(Ce) | 
  R060218 | 
  CeSr(CO3)2(OH)·H2O | 
  Royal Ontario Museum M40089 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Andalusite | 
  R050258 | 
  Al2SiO5 | 
  Marcus Origlieri  | 
  Bautista Canyon, near Hemet, Riverside County, California, USA | 
  
           
   | 
   | 
   | Andalusite | 
  R050449 | 
  Al2SiO5 | 
  Marcus Origlieri  | 
  Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Andalusite | 
  R050561 | 
  Al2SiO5 | 
  Dave Bunk Minerals  | 
  Cargo Muchacho Mountain, Imperial County, California | 
  
           
   | 
   | 
   | Andalusite | 
  R050626 | 
  Al2SiO5 | 
  Gemological Center  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Andalusite | 
  R060197 | 
  Al2SiO5 | 
  Marcus Origlieri  | 
  Brazil | 
  
           
   | 
   | 
   | Andalusite | 
  R060212 | 
  Al2SiO5 | 
  Marcus Origlieri  | 
  Brazil | 
  
           
   | 
   | 
   | Andersonite | 
  R080133 | 
  Na2Ca(UO2)(CO3)3·5-6H2O | 
  James Shigley  | 
  Monte Cristo mine, Cane Springs Canyon, near Moab, Grand County, Utah, USA | 
  
           
   | 
   | 
   | Andesine | 
  X050013 | 
  (Na,Ca)(Si,Al)4O8 | 
  George R. Rossman GRR-1604 | 
  Cima Volcanics, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Andradite | 
  R040001 | 
  Ca3Fe3+2(SiO4)3 | 
  University of Arizona Mineral Museum 12923 | 
  Stanley Butte, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Andradite | 
  X050015 | 
  Ca3Fe3+2(SiO4)3 | 
  RD Shannon 56163- 138 | 
  Val Malenco, Italy | 
  
           
   | 
   | 
   | Andradite | 
  R050256 | 
  Ca3Fe3+2(SiO4)3 | 
  Marcus Origlieri  | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Andradite | 
  R050311 | 
  Ca3Fe3+2(SiO4)3 | 
  Eugene Schlepp  | 
  Calaveras County, California, USA | 
  
           
   | 
   | 
   | Andradite | 
  R050377 | 
  Ca3Fe3+2(SiO4)3 | 
  University of Arizona Mineral Museum 2983 | 
  Zlatoust District, South Urals, Russia | 
  
           
   | 
   | 
   | Andradite | 
  R060358 | 
  Ca3Fe3+2(SiO4)3 | 
  Herb Obodda 010 | 
  Soghan, near Jiroft, Kerman, Iran | 
  
           
   | 
   | 
   | Andradite | 
  R060350 | 
  Ca3Fe3+2(SiO4)3 | 
  Michael Scott S100023 | 
  south of the Gem mine, southern San Benito County, California, USA | 
  
           
   | 
   | 
   | Andradite | 
  R060326 | 
  Ca3Fe3+2(SiO4)3 | 
  Marcus Origlieri  | 
  Ultevis, Sweden | 
  
           
   | 
   | 
   | Andradite | 
  R060423 | 
  Ca3Fe3+2(SiO4)3 | 
  Greg Schmidt  | 
  Mali | 
  
           
   | 
   | 
   | Andradite | 
  R060449 | 
  Ca3Fe3+2(SiO4)3 | 
  Gemological Institute of America 31344 | 
  Namibia | 
  
           
   | 
   | 
   | Andradite | 
  R070722 | 
  Ca3Fe3+2(SiO4)3 | 
  Royal Ontario Museum M42909 | 
  Otjosondu, Namibia | 
  
           
   | 
   | 
   | Andradite | 
  R100049 | 
  Ca3Fe3+2(SiO4)3 | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Andradite | 
  R100138 | 
  Ca3Fe3+2(SiO4)3 | 
  William W. Pinch  | 
  Madagascar | 
  
           
   | 
   | 
   | Andradite | 
  R120004 | 
  Ca3Fe3+2(SiO4)3 | 
  Jack Lowell  | 
  Chifeng, Inner Mongolia | 
  
           
   | 
   | 
   | Anglesite | 
  R040004 | 
  Pb(SO4) | 
  University of Arizona Mineral Museum 7726 | 
  Erupcion mine, Los Lamentos, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Anglesite | 
  R050052 | 
  Pb(SO4) | 
  Eugene Schlepp  | 
  Touissite, Oujela, Morocco | 
  
           
   | 
   | 
   | Anglesite | 
  R050408 | 
  Pb(SO4) | 
  California Institute of Technology W-13 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Anhydrite | 
  R040012 | 
  Ca(SO4) | 
  University of Arizona Mineral Museum 7792 | 
  Moundhouse, Nevada, USA | 
  
           
   | 
   | 
   | Anhydrite | 
  R040061 | 
  Ca(SO4) | 
  University of Arizona Mineral Museum 6088 | 
  Chester County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Anhydrite | 
  X050017 | 
  Ca(SO4) | 
  Caltech  | 
  Yerington, Nevada, USA | 
  
           
   | 
   | 
   | Anhydrite | 
  R061102 | 
  Ca(SO4) | 
  Michael Scott S103078 | 
  Taft, Kern County, California | 
  
           
   | 
   | 
   | Anilite | 
  R060514 | 
  Cu7S4 | 
  Michael Scott S100193 | 
  Villamanin, Carmenes District, Leon Province, Spain | 
  
           
   | 
   | 
   | Anilite | 
  R060688 | 
  Cu7S4 | 
  Michael Scott S101294 | 
  Horai Halze bei Medenec, Erzgebirge, Czech Republic | 
  
           
   | 
   | 
   | Ankerite | 
  R050181 | 
  Ca(Fe2+,Mg)(CO3)2 | 
  Marcus Origlieri  | 
  Cerro Sapo, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Ankerite | 
  R050197 | 
  Ca(Fe2+,Mg)(CO3)2 | 
  Marcus Origlieri  | 
  Brownley Hill mine, Nenthead, Cumbria, England | 
  
           
   | 
   | 
   | Ankerite | 
  X050018 | 
  Ca(Fe2+,Mg)(CO3)2 | 
  American Museum of Natural History 8059 | 
  Erzberg, Austria | 
  
           
   | 
   | 
   | Ankerite | 
  X050019 | 
  Ca(Fe2+,Mg)(CO3)2 | 
  American Museum of Natural History 6376 | 
  Goldbrath, Austria | 
  
           
   | 
   | 
   | Ankinovichite | 
  R060671 | 
  NiAl4(V5+O3)2(OH)12·2H2O | 
  Michael Scott S100964 | 
  Kara-Chagyr Mountain, Fergana, Fergana Valley, Osh Oblast, Kyrgyzstan | 
  
           
   | 
   | 
   | Annabergite | 
  R050462 | 
  Ni3(AsO4)2·8H2O | 
  University of Arizona Mineral Museum 2447 | 
  Plaka mine, Laurium, Attica, Greece | 
  
           
   | 
   | 
   | Annabergite | 
  R060564 | 
  Ni3(AsO4)2·8H2O | 
  Michael Scott S100290 | 
  Candelaria mine, Mineral County, Nevada, USA | 
  
           
   | 
   | 
   | Annite | 
  R060204 | 
  KFe2+3(AlSi3O10)(OH)2 | 
  Royal Ontario Museum M29662 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Annite | 
  R060211 | 
  KFe2+3(AlSi3O10)(OH)2 | 
  Royal Ontario Museum M51392 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Anorpiment | 
  R110016 | 
  As2S3 | 
  Bob Jenkins  | 
  Palomo mine, Huancavelica Department, Peru | 
  
           
   | 
   | 
   | Anorthite | 
  R040059 | 
  Ca(Al2Si2O8) | 
  University of Arizona Mineral Museum 4079 | 
  Miyakejima, Japan | 
  
           
   | 
   | 
   | Anorthite | 
  R050104 | 
  Ca(Al2Si2O8) | 
  Rock Currier  | 
  unknown | 
  
           
   | 
   | 
   | Anorthite | 
  X050020 | 
  Ca(Al2Si2O8) | 
  G.R. Rossman 1597 | 
  West side, Great Sitkin Island, Aleutian Islands, Alaska | 
  
           
   | 
   | 
   | Anorthite | 
  X050021 | 
  Ca(Al2Si2O8) | 
  G.R. Rossman 1612 | 
  Miyakejima, Japan | 
  
           
   | 
   | 
   | Anorthite | 
  R060082 | 
  Ca(Al2Si2O8) | 
  University of Arizona Mineral Museum 15620 | 
  Pinacate Mountains, Sonora, Mexico | 
  
           
   | 
   | 
   | Anorthite | 
  R060193 | 
  Ca(Al2Si2O8) | 
  Bill Barker  | 
  Mexico | 
  
           
   | 
   | 
   | Anorthite | 
  R060221 | 
  Ca(Al2Si2O8) | 
  Rock Currier  | 
  Pinacate lavafield, Sonora, Mexico | 
  
           
   | 
   | 
   | Anorthite | 
  R060275 | 
  Ca(Al2Si2O8) | 
  Herb Obodda 087 | 
  Madagascar | 
  
           
   | 
   | 
   | Anorthite | 
  R070510 | 
  Ca(Al2Si2O8) | 
  James Shigley  | 
  Larvik, Vestfold, Norway | 
  
           
   | 
   | 
   | Anorthite | 
  R070598 | 
  Ca(Al2Si2O8) | 
  James Shigley  | 
  Eyscott Hill, Keswick, Cumberland, England | 
  
           
   | 
   | 
   | Anorthite | 
  R100170 | 
  Ca(Al2Si2O8) | 
  Mineralogical Museum, Harvard University 135998 | 
  La Elenda mine, near Nuevo Casas Grandes, Municipio de Nuevo Casas Grandes, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Anorthite | 
  R130296 | 
  Ca(Al2Si2O8) | 
  Rock Currier  | 
  Crystal Bay, Minnesota, USA | 
  
           
   | 
   | 
   | Anorthite | 
  R190029 | 
  Ca(Al2Si2O8) | 
  Mariah Leslie  | 
  San Louis Obispo Co., California, USA | 
  
           
   | 
   | 
   | Anorthoroselite | 
  R150065 | 
  Ca2Co(AsO4)2·2H2O | 
  Bob Jenkins  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Anthoinite | 
  R070025 | 
  AlWO3(OH)3 | 
  Michael Scott S101286 | 
  Kyakabingu, Bumbogo, Rwanda | 
  
           
   | 
   | 
   | Anthophyllite | 
  X050022 | 
  ◻Mg2Mg5Si8O22(OH)2 | 
  Caltech 22362 | 
  Winchester, Riverside County, California, USA | 
  
           
   | 
   | 
   | Anthophyllite | 
  R070245 | 
  ◻Mg2Mg5Si8O22(OH)2 | 
  Michael Scott S105774 | 
  Shartash, Zlatoust, Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia | 
  
           
   | 
   | 
   | Anthraxolite | 
  R060634 | 
   | 
  Gemological Institute of America 01 | 
  China | 
  
           
   | 
   | 
   | Antigorite | 
  R070228 | 
  Mg3Si2O5(OH)4 | 
  Michael Scott S100701 | 
  Wood's Chrome Mine (Wood's Mine), Texas, Lancaster County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Antimony | 
  R050654 | 
  Sb | 
  University of Arizona Mineral Museum 3170 | 
  Sarawak, Borneo | 
  
           
   | 
   | 
   | Antimony | 
  R070318 | 
  Sb | 
  James Shigley  | 
  Arechuybo, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Antipinite | 
  R160005 | 
  KNa3Cu2(C2O4)4 | 
  Danielle Sotomayor and Keith Wentz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Antlerite | 
  R050212 | 
  Cu2+3(SO4)(OH)4 | 
  John Dagenais  | 
  Chuquicamata mine, Calama, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Antlerite | 
  R110045 | 
  Cu2+3(SO4)(OH)4 | 
  Bob Downs, collected March 2011  | 
  Childs Aldwinkle mine, Bunker Hill District, Copper Creek, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Apachite | 
  R060694 | 
  Cu2+9Si10O29·11H2O | 
  Bob Jenkins  | 
  Christmas mine, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Aphthitalite | 
  R050651 | 
  K3Na(SO4)2 | 
  University of Arizona Mineral Museum 13723 | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Apjohnite | 
  R060231 | 
  Mn2+Al2(SO4)4·22H2O | 
  Michael Scott S100270 | 
  Val d'Adige, Bolzano, Italy | 
  
           
   | 
   | 
   | Apuanite | 
  R060674 | 
  (Fe2+Fe3+2)(Fe3+2Sb3+4)O12S | 
  Michael Scott S101123 | 
  Buca della Vena mine, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Aqualite | 
  R070413 | 
  (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl | 
  Michael Scott S105760 | 
  Kovdor Phlogopite mine (Mica mine; Slyuda mine; Kovdorslyuda Shaft), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Aragonite | 
  R040078 | 
  Ca(CO3) | 
  University of Arizona Mineral Museum 3887 | 
  Molina, Aragon, Spain | 
  
           
   | 
   | 
   | Aragonite | 
  X050023 | 
  Ca(CO3) | 
  Caltech  | 
  Spain | 
  
           
   | 
   | 
   | Aragonite | 
  R060195 | 
  Ca(CO3) | 
  Marcus Origlieri  | 
  Cicov Hill, Horenec, Czech Republic | 
  
           
   | 
   | 
   | Aragonite | 
  R080142 | 
  Ca(CO3) | 
  Renato and Adriana Pagano  | 
  Miniere di Brosso, Ivrea, Torino, Italy | 
  
           
   | 
   | 
   | Aragonite | 
  R150021 | 
  Ca(CO3) | 
  Canan D'Avela  | 
  Gallo river, Molina de Aragón, Guadalajara, Castile-La Mancha, Spain | 
  
           
   | 
   | 
   | Arakiite | 
  R060812 | 
  ZnMn2+12Fe3+2(As3+O3)(As5+O4)2(OH)23 | 
  Michael Scott S101159 | 
  Nordmark, Sweden | 
  
           
   | 
   | 
   | Arakiite | 
  R070172 | 
  ZnMn2+12Fe3+2(As3+O3)(As5+O4)2(OH)23 | 
  Michael Scott S100741 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Aramayoite | 
  R061071 | 
  Ag3Sb2(Bi,Sb)S6 | 
  Michael Scott S101420 | 
  Animas mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Arapovite | 
  R060672 | 
  (K1-x◻x)(Ca,Na)2U4+Si8O20 [x ≈ 0.5] | 
  Michael Scott S100969 | 
  Dara-i-Pioz Glacier, Hait, Alayskiy (Alai) Range, Tien Shan Mountains, Tajikistan | 
  
           
   | 
   | 
   | Aravaipaite | 
  R100004 | 
  Pb3AlF9·H2O | 
  William W. Pinch  | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Aravaipaite | 
  R100032 | 
  Pb3AlF9·H2O | 
  William W. Pinch  | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Ardealite | 
  R060233 | 
  Ca2(PO3OH)(SO4)·4H2O | 
  Michael Scott S100314 | 
  Moorba Cave, Jurien Bay, Western Australia, Australia | 
  
           
   | 
   | 
   | Ardennite-(As) | 
  R060669 | 
  Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6 | 
  Michael Scott S100888 | 
  Ardennes, Salm Chateau, Belgium | 
  
           
   | 
   | 
   | Arfvedsonite | 
  R040127 | 
  NaNa2(Fe2+4Fe3+)Si8O22(OH)2 | 
  Bob Downs  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Arfvedsonite | 
  R050514 | 
  NaNa2(Fe2+4Fe3+)Si8O22(OH)2 | 
  Frank Hawthorne  | 
  unknown | 
  
           
   | 
   | 
   | Arfvedsonite | 
  R110049 | 
  NaNa2(Fe2+4Fe3+)Si8O22(OH)2 | 
  Donald M Doell  | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Argandite | 
  R130044 | 
  Mn7(VO4)2(OH)8 | 
  Joel Brugger  | 
  Pipji glacier (Pipjigletscher) in the Turtmann valley, Central Alps, Switzerland | 
  
           
   | 
   | 
   | Argentobaumhauerite | 
  R070167 | 
  Ag1.5Pb22As33.5S72 | 
  Michael Scott S103086 | 
  Cerro de Pasco, Alcides Carrión Province, Pasco department, Peru | 
  
           
   | 
   | 
   | Argentojarosite | 
  R060097 | 
  AgFe3+3(SO4)2(OH)6 | 
  University of Arizona Mineral Museum 5015 | 
  unknown | 
  
           
   | 
   | 
   | Argentojarosite | 
  R060098 | 
  AgFe3+3(SO4)2(OH)6 | 
  University of Arizona Mineral Museum 2595 | 
  Tintic Standard mine, Dividend, Utah, USA | 
  
           
   | 
   | 
   | Argentopyrite | 
  R070173 | 
  AgFe2S3 | 
  Michael Scott S100757 | 
  St. Joachimsthal, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Argentopyrite | 
  R090026 | 
  AgFe2S3 | 
  Mark N. Feinglos  | 
  Schaft 209, Aue, Niederschlema, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Argentopyrite | 
  R090027 | 
  AgFe2S3 | 
  Mark N. Feinglos  | 
  Jáchymov, Ostrov, Krušné Hory Mts, Karlovy Vary Region, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Argesite | 
  R130008 | 
  (NH4)7Bi3Cl16 | 
  Francesco Demartin  | 
  La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy | 
  
           
   | 
   | 
   | Argyrodite | 
  R050437 | 
  Ag8GeS6 | 
  University of Arizona Mineral Museum 1540 | 
  Himmelsfurst mine, Freiberg, Saxony, Germany | 
  
           
   | 
   | 
   | Arhbarite | 
  R060730 | 
  Cu2Mg(AsO4)(OH)3 | 
  Bob Jenkins  | 
  Guanaco, Chile | 
  
           
   | 
   | 
   | Arisite-(La) | 
  R120051 | 
  NaLa2(CO3)2[F2x(CO3)1-x]F | 
  William W. Pinch  | 
  Aris quarry, near Windhoek, Namibia | 
  
           
   | 
   | 
   | Armalcolite | 
  R070260 | 
  (Mg,Fe2+)Ti2O5 | 
  Michael Scott S100770 | 
  Chelyabinsk Oblast', Urals Region, Russia | 
  
           
   | 
   | 
   | Armalcolite | 
  R110187 | 
  (Mg,Fe2+)Ti2O5 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Armalcolite | 
  R110188 | 
  (Mg,Fe2+)Ti2O5 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Armangite | 
  R100041 | 
  Mn2+26[As3+6(OH)4O14][As3+6O18]2(CO3) | 
  William W. Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Armangite | 
  R100054 | 
  Mn2+26[As3+6(OH)4O14][As3+6O18]2(CO3) | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Arrojadite-(BaNa) | 
  R160077 | 
  BaNa3(NaCa)Fe2+13Al(PO4)11(PO3OH)(OH)2 | 
  James Shigley  | 
  Victory mine, near Custer, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Arrojadite-(KFe) | 
  R070319 | 
  (KNa)Fe2+(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2 | 
  James Shigley  | 
  Nickel Plate mine, Keystone District, Pennington County, South Dakota, USA | 
  
           
   | 
   | 
   | Arrojadite-(KNa) | 
  R050107 | 
  KNa3(CaNa2)Fe2+13Al(PO4)11(PO3OH)(OH)2 | 
  Rock Currier  | 
  Big-Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Arrojadite-(NaFe) | 
  R070298 | 
   | 
  Mark Mauthner 2977 | 
  Boundary Creek, Richardson Mountains, Dawson mining district, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Arsenbrackebuschite | 
  R100184 | 
  Pb2(Fe3+,Zn)(AsO4)2(OH,H2O) | 
  Marcus Origlieri  | 
  Mina Ojuela (Campo Sur), Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Arsendescloizite | 
  R060947 | 
  PbZn(AsO4)(OH) | 
  Bob Jenkins  | 
  Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Arsendescloizite | 
  R140430 | 
  PbZn(AsO4)(OH) | 
  University of Arizona Mineral Museum 17511  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Arsenic | 
  R050653 | 
  As | 
  University of Arizona Mineral Museum 1237 | 
  Japan | 
  
           
   | 
   | 
   | Arseniopleite | 
  R070144 | 
  NaCaMnMn2(AsO4)3 | 
  Michael Scott S100755 | 
  Sjögruvan mine, Grythyttan, Västmanland, Sweden | 
  
           
   | 
   | 
   | Arseniopleite | 
  R070166 | 
  NaCaMnMn2(AsO4)3 | 
  Michael Scott S104846 | 
  Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy | 
  
           
   | 
   | 
   | Arseniosiderite | 
  R150062 | 
  Ca2Fe3+3O2(AsO4)3·3H2O | 
  Michael Scott S104843 | 
  Benjamin Hill, Sonora, Mexico | 
  
           
   | 
   | 
   | Arseniosiderite | 
  R150061 | 
  Ca2Fe3+3O2(AsO4)3·3H2O | 
  Bob Jenkins  | 
  Las Animas mine, La Mur, Sonora, Mexico | 
  
           
   | 
   | 
   | Arsenogorceixite | 
  R060686 | 
  BaAl3(AsO4)(AsO3OH)(OH)6 | 
  Michael Scott S101271 | 
  Clara mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | 
  
           
   | 
   | 
   | Arsenohauchecornite | 
  R070347 | 
  Ni18Bi3AsS16 | 
  Michael Scott S104840 | 
  Vermilion Mine, Denison Township, Sudbury District, Ontario, Canada | 
  
           
   | 
   | 
   | Arsenolamprite | 
  R060680 | 
  As | 
  Michael Scott S101370 | 
  Copiapo, Atacama, Chile | 
  
           
   | 
   | 
   | Arsenolite | 
  R050383 | 
  As2O3 | 
  University of Arizona Mineral Museum 3603 | 
  Eureka, Nevada, USA | 
  
           
   | 
   | 
   | Arsenolite | 
  R080095 | 
  As2O3 | 
  University of Arizona Mineral Museum 16128 | 
  Jáchymov, Erzgebirge Region, Czech Republic | 
  
           
   | 
   | 
   | Arsenopyrite | 
  R050071 | 
  FeAsS | 
  Rock Currier  | 
  Yaogangxian mine, Yizhang County, Hunan Province, China | 
  
           
   | 
   | 
   | Arsenopyrite | 
  R061082 | 
  FeAsS | 
  Lloyd Twaites LT 1516 | 
  Little Gem mine, Goldbridge, British Columbia, Canada | 
  
           
   | 
   | 
   | Arsenopyrite | 
  R070585 | 
  FeAsS | 
  James Shigley  | 
  Standard Consolidated mine, Sumpter District, Baker County, Oregon, USA | 
  
           
   | 
   | 
   | Arsentsumebite | 
  R060949 | 
  Pb2Cu(AsO4)(SO4)(OH) | 
  Bob Jenkins  | 
  Capitana mine, Copiapo, Chile | 
  
           
   | 
   | 
   | Arsentsumebite | 
  R070629 | 
  Pb2Cu(AsO4)(SO4)(OH) | 
  Royal Ontario Museum  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Arsentsumebite | 
  R110041 | 
  Pb2Cu(AsO4)(SO4)(OH) | 
  William W Pinch 11513 | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Arsenuranospathite | 
  R100008 | 
  Al(UO2)2(AsO4)2F·20H2O | 
  William Pinch  | 
  Krunkelbach valley, Menzenschwand, Schwarzwald, Germany | 
  
           
   | 
   | 
   | Artemisinin | 
  D120011 | 
   | 
  David Blake  | 
  Synthetic from Sensapharm | 
  
           
   | 
   | 
   | Artesunate | 
  D120001 | 
   | 
  David Blake  | 
  Synthetic from Sensapharm | 
  
           
   | 
   | 
   | Artesunate | 
  D120022 | 
   | 
  David Blake  | 
  Synthetic; pill is from Guilin Pharmaceutical Co., Ltd., China | 
  
           
   | 
   | 
   | Artesunate | 
  D120023 | 
   | 
  David Blake  | 
  Synthetic; pill is from Guilin Pharmaceutical Co., Ltd., China | 
  
           
   | 
   | 
   | Artesunate | 
  D120024 | 
   | 
  David Blake  | 
  Synthetic; pill is from Guilin Pharmaceutical Co., Ltd., China | 
  
           
   | 
   | 
   | Arthurite | 
  R060235 | 
  CuFe3+2(AsO4)2(OH)2·4H2O | 
  Michael Scott S100155 | 
  Copper Stope, Majuba Hill mine, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Artinite | 
  R060166 | 
  Mg2(CO3)(OH)2·3H2O | 
  Marcus Origlieri  | 
  San Benito County, California, USA | 
  
           
   | 
   | 
   | Artinite | 
  R060234 | 
  Mg2(CO3)(OH)2·3H2O | 
  Michael Scott S100297 | 
  southern San Benito County, California, USA | 
  
           
   | 
   | 
   | Artroeite | 
  R100034 | 
  PbAlF3(OH)2 | 
  Natural History Museum of Los Angeles County LACMNH 39338 | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Asbecasite | 
  R060719 | 
  Ca3TiAs6Be2Si2O20 | 
  Bob Jenkins  | 
  Binntal, Wallis, Switzerland | 
  
           
   | 
   | 
   | Asbolane | 
  R070306 | 
  Mn4+(O,OH)2·(Co,Ni,Mg,Ca)x(OH)2x·nH2O | 
  James Shigley  | 
  Porterville, Tulare County, California, USA | 
  
           
   | 
   | 
   | Asbolane | 
  R070359 | 
  Mn4+(O,OH)2·(Co,Ni,Mg,Ca)x(OH)2x·nH2O | 
  Michael Scott S101785 | 
  Hachberg, Saint Avold, Moselle, France | 
  
           
   | 
   | 
   | Aschamalmite | 
  R060690 | 
  Pb6-3xBi2+xS9 | 
  Michael Scott S101236 | 
  Ascham Alp, Untersulzbach Valley, Salzburg, Austria | 
  
           
   | 
   | 
   | Ashburtonite | 
  R110003 | 
  HCu4Pb4Si4O12(HCO3)4(OH)4Cl | 
  Bob Jenkins  | 
  Tonopah-Belmont mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Ashburtonite | 
  R200010 | 
  HCu4Pb4Si4O12(HCO3)4(OH)4Cl | 
  Bruce Murphy  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Ashburtonite | 
  R200012 | 
  HCu4Pb4Si4O12(HCO3)4(OH)4Cl | 
  Bob Jenkins  | 
  Ashburton Downs Station, Western Australia, Australia | 
  
           
   | 
   | 
   | Ashcroftine-(Y) | 
  R110189 | 
  K5Na5Y12Si28O70(OH)2(CO3)8·8H2O | 
  Donald Doell  | 
  Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Asisite | 
  R070635 | 
  Pb7SiO8Cl2 | 
  Ausrox/Rob Sielicki  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Aspedamite | 
  R130014 | 
  ◻12(Fe3+,Fe2+)3Nb4[Th(Nb,Fe3+)12O42][(H2O),(OH)]12 | 
  Frank C. Hawthorne  | 
  Herrebøkasa quarry, Aspedammen, Østfold, Norway | 
  
           
   | 
   | 
   | Aspirin | 
  D120010 | 
   | 
  David Blake  | 
  Synthetic | 
  
           
   | 
   | 
   | Aspirin | 
  D120019 | 
   | 
  David Blake  | 
  Synthetic; pill is from Traphaco | 
  
           
   | 
   | 
   | Aspirin | 
  D120020 | 
   | 
  David Blake  | 
  Synthetic; pill is from Traphaco | 
  
           
   | 
   | 
   | Aspirin | 
  D120021 | 
   | 
  David Blake  | 
  Synthetic; pill is from Traphaco | 
  
           
   | 
   | 
   | Aspirin | 
  D200001 | 
   | 
  Bram Mooij  | 
  Synthetic from E. Merck AG, Darmstadt | 
  
           
   | 
   | 
   | Astrophyllite | 
  R060103 | 
  K2NaFe2+7Ti2(Si4O12)2O2(OH)4F | 
  University of Arizona Mineral Museum 2924 | 
  Brivik, Norway | 
  
           
   | 
   | 
   | Astrophyllite | 
  R060202 | 
  K2NaFe2+7Ti2(Si4O12)2O2(OH)4F | 
  Royal Ontario Museum M27042 | 
  Demix Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Atacamite | 
  R050098 | 
  Cu2Cl(OH)3 | 
  Rock Currier  | 
  La Farola mine, Tierra Amarilla, Atacama, Chile | 
  
           
   | 
   | 
   | Atelestite | 
  R080139 | 
  Bi2O(AsO4)(OH) | 
  William W. Pinch  | 
  Daniel mine, Schneeberg, Saxony, Germany | 
  
           
   | 
   | 
   | Atelisite-(Y) | 
  R130043 | 
  Y4Si3O8(OH)8 | 
  Thomas Malcherek  | 
  Stetind quarry, Tysfjord, Norway | 
  
           
   | 
   | 
   | Atencioite | 
  R060893 | 
  Ca2Fe2+3Mg2Be4(PO4)6(OH)4·6H2O | 
  Michael Scott S100875 | 
  Linópolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Atenolol | 
  D120017 | 
   | 
  David Blake  | 
  Synthetic; pill is from Germany | 
  
           
   | 
   | 
   | Atenolol | 
  D120018 | 
   | 
  David Blake  | 
  Synthetic; pill is from Germany | 
  
           
   | 
   | 
   | Atorvastatin | 
  D120015 | 
   | 
  David Blake  | 
  Synthetic; pill is from Vietnam | 
  
           
   | 
   | 
   | Atorvastatin | 
  D120016 | 
   | 
  David Blake  | 
  Synthetic; pill is from Vietnam | 
  
           
   | 
   | 
   | Attikaite | 
  R070217 | 
  Ca3Cu2Al2(AsO4)4(OH)4·2H2O | 
  Michael Scott S100433 | 
  Christiana Mine,  Kamareza Mines,  Agios Konstantinos [St Constantine] (Kamareza; Kamariza),  Lavrion District Mines,  Lavrion District,  Attikí (Attica; Attika) Prefecture,  Greece | 
  
           
   | 
   | 
   | Aubertite | 
  R060751 | 
  Cu2+Al(SO4)2Cl·14H2O | 
  Bob Jenkins  | 
  Quetena mine, Chuquicamata, Chile | 
  
           
   | 
   | 
   | Augelite | 
  R050060 | 
  Al2(PO4)(OH)3 | 
  Rock Currier  | 
  Machacamarca, Potosi Department, Bolivia | 
  
           
   | 
   | 
   | Augelite | 
  R050100 | 
  Al2(PO4)(OH)3 | 
  Rock Currier  | 
  Rapid Creek, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Augelite | 
  R050316 | 
  Al2(PO4)(OH)3 | 
  Eugene Schlepp  | 
  Rapid Creek, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Augite | 
  X050024 | 
  (Ca,Mg,Fe)2Si2O6 | 
  G.R. Rossman 583 | 
  Cedar Butte, Oregon, USA | 
  
           
   | 
   | 
   | Augite | 
  X050025 | 
  (Ca,Mg,Fe)2Si2O6 | 
  G.R. Rossman 1646 | 
  Hopi Butte, Diatreme #6, Holbrook, Arizona, USA | 
  
           
   | 
   | 
   | Augite | 
  R061086 | 
  (Ca,Mg,Fe)2Si2O6 | 
  Michael Scott S101798 | 
  Boreslav, Teplitz, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Augite | 
  R061108 | 
  (Ca,Mg,Fe)2Si2O6 | 
  Michael Scott S101803 | 
  Monti Rossi, near Mt. Etna, Sicily, Italy | 
  
           
   | 
   | 
   | Augite | 
  R070231 | 
  (Ca,Mg,Fe)2Si2O6 | 
  Michael Scott S105901 | 
  Old Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA | 
  
           
   | 
   | 
   | Augite | 
  R110063 | 
  (Ca,Mg,Fe)2Si2O6 | 
  Marcus Origlieri  | 
  Betroka, Madagascar | 
  
           
   | 
   | 
   | Augite | 
  R190030 | 
  (Ca,Mg,Fe)2Si2O6 | 
  Mariah Leslie  | 
  San Louis Obispo Co., California, USA | 
  
           
   | 
   | 
   | Aurichalcite | 
  R050297 | 
  (Zn,Cu)5(CO3)2(OH)6 | 
  George Godas, John Callahan  | 
  79 mine, 4th level, Hayden, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Aurichalcite | 
  R060426 | 
  (Zn,Cu)5(CO3)2(OH)6 | 
  Michael Scott S100291 | 
  Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Aurostibite | 
  R060923 | 
  AuSb2 | 
  Michael Scott S100862 | 
  Krásná Hora, Czech Republic | 
  
           
   | 
   | 
   | Austinite | 
  R060703 | 
  CaZn(AsO4)(OH) | 
  Bob Jenkins  | 
  Gold Hill mine, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Avdoninite | 
  R061024 | 
  K2Cu5Cl8(OH)4·2H2O | 
  Michael Scott S101385 | 
  Blyava Cu mine, Sakmara, Orenburgskaya, Ural Mountains, Russia | 
  
           
   | 
   | 
   | Avdoninite | 
  R070080 | 
  K2Cu5Cl8(OH)4·2H2O | 
  Michael Scott S105106 | 
  main fracture, N breakthrough, Tolbachik Volcano, Kamchtka Peninsula, Russia | 
  
           
   | 
   | 
   | Avicennite | 
  R070262 | 
  Tl2O3 | 
  Michael Scott S105807 | 
  Thallium Prospect, Little Valley, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Avogadrite | 
  R110062 | 
  KBF4 | 
  James Shigley  | 
  Mount Vesuvius, near Naples, Campania, Italy | 
  
           
   | 
   | 
   | Awaruite | 
  R061020 | 
  Ni3Fe | 
  Michael Scott S100895 | 
  Oregon, USA | 
  
           
   | 
   | 
   | Awaruite | 
  R070671 | 
  Ni3Fe | 
  James Shigley  | 
  Heazlewood District, Tasmania, Australia | 
  
           
   | 
   | 
   | Axinite-(Fe) | 
  R040074 | 
  Ca4Fe2+2Al4[B2Si8O30](OH)2 | 
  University of Arizona Mineral Museum 8402 | 
  Luning, Nevada, USA | 
  
           
   | 
   | 
   | Axinite-(Fe) | 
  R050061 | 
  Ca4Fe2+2Al4[B2Si8O30](OH)2 | 
  Rock Currier  | 
  Jamestown, California, USA | 
  
           
   | 
   | 
   | Axinite-(Fe) | 
  R050026 | 
  Ca4Fe2+2Al4[B2Si8O30](OH)2 | 
  Rock Currier  | 
  Pouyva mine, Polar Urals, Western Siberian Region, Russia | 
  
           
   | 
   | 
   | Axinite-(Fe) | 
  R060183 | 
  Ca4Fe2+2Al4[B2Si8O30](OH)2 | 
  Lloyd Twaites  | 
  Skagit Bluffs, near Manning Park, British Columbia, Canada | 
  
           
   | 
   | 
   | Axinite-(Fe) | 
  R060194 | 
  Ca4Fe2+2Al4[B2Si8O30](OH)2 | 
  Herbert Obodda  | 
  near Dalbandi, Baluchistan Province, Pakistan | 
  
           
   | 
   | 
   | Axinite-(Fe) | 
  R060558 | 
  Ca4Fe2+2Al4[B2Si8O30](OH)2 | 
  Gemological Institute of America 14110 | 
  unknown | 
  
           
   | 
   | 
   | Axinite-(Mg) | 
  R070133 | 
  Ca4Mg2Al4[B2Si8O30](OH)2 | 
  Michael Gray  | 
  Merelani, Tanzania | 
  
           
   | 
   | 
   | Axinite-(Mn) | 
  R050299 | 
  Ca4Mn2+2Al4[B2Si8O30](OH)2 | 
  Eugene Schlepp  | 
  Dalnegorsk, Russia | 
  
           
   | 
   | 
   | Axinite-(Mn) | 
  R061121 | 
  Ca4Mn2+2Al4[B2Si8O30](OH)2 | 
  Michael Scott S103393 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Axinite-(Mn) | 
  R160079 | 
  Ca4Mn2+2Al4[B2Si8O30](OH)2 | 
  Carl Richardson  | 
  Huachuca Mountains, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Azurite | 
  R050497 | 
  Cu3(CO3)2(OH)2 | 
  Marcus Origlieri  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Azurite | 
  R050638 | 
  Cu3(CO3)2(OH)2 | 
  University of Arizona Mineral Museum 13399 | 
  Zacatecas, Mexico | 
  
           
   | 
   | 
   | Babingtonite | 
  X050027 | 
  Ca2Fe2+Fe3+Si5O14(OH) | 
  G.R. Rossman 1887 | 
  Kandivill, India | 
  
           
   | 
   | 
   | Babingtonite | 
  R060093 | 
  Ca2Fe2+Fe3+Si5O14(OH) | 
  University of Arizona Mineral Museum 8742 | 
  Iron Cap mine, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Babingtonite | 
  R060083 | 
  Ca2Fe2+Fe3+Si5O14(OH) | 
  University of Arizona Mineral Museum 17001 | 
  Hampden Quarry, Springfield, Massachusetts, USA | 
  
           
   | 
   | 
   | Babingtonite | 
  R060084 | 
  Ca2Fe2+Fe3+Si5O14(OH) | 
  University of Arizona Mineral Museum 4198 | 
  Winchester Highlands, Massachusetts, USA | 
  
           
   | 
   | 
   | Baddeleyite | 
  R060016 | 
  ZrO2 | 
  American Museum of Natural History 110614 | 
  Wet Loo, Myanmar | 
  
           
   | 
   | 
   | Baddeleyite | 
  R060078 | 
  ZrO2 | 
  Marcus Origlieri  | 
  Wetloo mine, Mogok, Burma | 
  
           
   | 
   | 
   | Baddeleyite | 
  R100171 | 
  ZrO2 | 
  Mauricio Ibanez-Mejia  | 
  Palabora Mine, Phalaborwa, Transvaal, Republic of South Africa  | 
  
           
   | 
   | 
   | Bahianite | 
  R050627 | 
  Al5Sb5+3O14(OH)2 | 
  Gemological Center  | 
  Paramirim Region, Bahia, Brazil | 
  
           
   | 
   | 
   | Bahianite | 
  R060433 | 
  Al5Sb5+3O14(OH)2 | 
  Michael Scott S100255 | 
  Paramirim Region, Bahia, Brazil | 
  
           
   | 
   | 
   | Bairdite | 
  R190040 | 
  Pb2Cu2+4Te6+2O10(OH)2(SO4)·H2O | 
  Mike Shannon  | 
  Tombstone, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Bakerite | 
  R050423 | 
  Ca4B5(SiO4)3(O3(OH)5) | 
  Marcus Origlieri  | 
  Corkscrew Canyon, Death Valley, California, USA | 
  
           
   | 
   | 
   | Bakhchisaraitsevite | 
  R060607 | 
  Na2Mg5(PO4)4·7H2O | 
  Michael Scott S100971 | 
  Kovdor Massif,  Kola Peninsula,  Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Balangeroite | 
  R060244 | 
  Mg21Si8O27(OH)20 | 
  Michael Scott S100332 | 
  San Vittore mine, Balangero Serpentinite, Lanzo Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Bannisterite | 
  R060817 | 
  (Ca,K,Na)(Mn2+,Fe2+)10(Si,Al)16O38(OH)8·nH2O | 
  Bob Jenkins  | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Baotite | 
  R060251 | 
  Ba4(Ti,Nb,W)8O16(SiO3)4Cl | 
  William W. Pinch  | 
  Baiyun-Obo mine, Inner Mongolia, China | 
  
           
   | 
   | 
   | Baotite | 
  R060414 | 
  Ba4(Ti,Nb,W)8O16(SiO3)4Cl | 
  Herb Obodda 112 | 
  Zagi Mountain, near Hammedabad, Khaffor Dehri, North-West Frontier Province, Pakistan | 
  
           
   | 
   | 
   | Barbosalite | 
  R070358 | 
  Fe2+Fe3+2(PO4)2(OH)2 | 
  Michael Scott S104945 | 
  Bull Moose mine, Custer, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Bariandite | 
  R060602 | 
  Al0.6(V5+,V4+)8O20·9H2O | 
  Michael Scott S101070 | 
  Mounana mine, Franceville, Haut-Ogooué, Gabon | 
  
           
   | 
   | 
   | Barićite | 
  R061045 | 
  (Mg,Fe)3(PO4)2·8H2O | 
  Michael Scott S100392 | 
  Rapid Creek, Yukon, Canada | 
  
           
   | 
   | 
   | Bario-olgite | 
  R060614 | 
  Na(Na,Sr,Ce)2Ba(PO4)2 | 
  Michael Scott S100949 | 
  Palitra pegmatite, Kedykverpakhk Mountain, Lovozero massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Barioperovskite | 
  R110180 | 
  BaTiO3 | 
  Guangtian Zou  | 
  Synthetic | 
  
           
   | 
   | 
   | Bariopharmacosiderite | 
  R060571 | 
  Ba0.5Fe3+4(AsO4)3(OH)4·5H2O | 
  Michael Scott S100251 | 
  Barrus mine, Pyramid District, Washoe County, Nevada, USA | 
  
           
   | 
   | 
   | Barlowite | 
  R110007 | 
  Cu4BrF(OH)6 | 
  Marcus Origlieri  | 
  Southwest mine, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Barnesite | 
  R060883 | 
  Na2V5+6O16·3H2O | 
  Bob Jenkins  | 
  Cactus Rat mine, Grand County, Utah, USA | 
  
           
   | 
   | 
   | Barrerite | 
  R050135 | 
  Na2(Si7Al2)O18·6H2O | 
  Ben Norton  | 
  Kuiu Island, Alaska, USA | 
  
           
   | 
   | 
   | Barringerite | 
  R070439 | 
  (Fe,Ni)2P | 
  Paul Roth  | 
  Dredged from Tampa Bay harbour, Tampa Bay, Florida, USA | 
  
           
   | 
   | 
   | Bartelkeite | 
  R070114 | 
  PbFe2+Ge(Ge2O7)(OH)2·H2O | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Barylite | 
  R060606 | 
  BaBe2Si2O7 | 
  Michael Scott S101023 | 
  Hackmann Valley, Yukspor Mountain, Khibiny, Kola, Russia | 
  
           
   | 
   | 
   | Barylite | 
  R060620 | 
  BaBe2Si2O7 | 
  Michael Scott S100829 | 
  Zomba, Malawi | 
  
           
   | 
   | 
   | Barysilite | 
  R050002 | 
  Pb8Mn(Si2O7)3 | 
  University of Arizona Mineral Museum 4265 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Barysilite | 
  R070651 | 
  Pb8Mn(Si2O7)3 | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Barysilite | 
  R100057 | 
  Pb8Mn(Si2O7)3 | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Baryte | 
  R040036 | 
  Ba(SO4) | 
  University of Arizona Mineral Museum 6093 | 
  Cumbria County, England | 
  
           
   | 
   | 
   | Baryte | 
  X050028 | 
  Ba(SO4) | 
  Caltech  | 
  Barium Queen mine, Barstow, California, USA | 
  
           
   | 
   | 
   | Baryte | 
  X050029 | 
  Ba(SO4) | 
  Caltech  | 
  Palos Verdes, California, USA | 
  
           
   | 
   | 
   | Baryte | 
  R050342 | 
  Ba(SO4) | 
  California Institute of Technology W-22127 | 
  Palos Verdes, Los Angeles County, California, USA | 
  
           
   | 
   | 
   | Baryte | 
  R050335 | 
  Ba(SO4) | 
  California Institute of Technology W-22142 | 
  Bullion Mountains, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Baryte | 
  R050375 | 
  Ba(SO4) | 
  Eugene Schlepp  | 
  unknown | 
  
           
   | 
   | 
   | Barytocalcite | 
  R050288 | 
  BaCa(CO3)2 | 
  Marcus Origlieri  | 
  Cumberland, England | 
  
           
   | 
   | 
   | Barytocalcite | 
  R120099 | 
  BaCa(CO3)2 | 
  Michael Scott S101067 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Barytolamprophyllite | 
  R120087 | 
  (BaK)Ti2Na3Ti(Si2O7)2O2(OH)2 | 
  Michael Scott S100558 | 
  Coyote Peak, Orick, Humboldt County, California, USA | 
  
           
   | 
   | 
   | Bassetite | 
  R080027 | 
  Fe2+(UO2)2(PO4)2(H2O)10 | 
  Mark N. Feinglos  | 
  Arcu su Linnarbu, Capoterra, Cagliari, Sardinia | 
  
           
   | 
   | 
   | Bastnäsite-(Ce) | 
  R050409 | 
  Ce(CO3)F | 
  G.R. Rossman W18 | 
  Machni, near Warsak Dam, Zagi Mountain, North-West Frontier Province, Pakistan | 
  
           
   | 
   | 
   | Bastnäsite-(Ce) | 
  R060359 | 
  Ce(CO3)F | 
  Herb Obodda 082 | 
  Zagi Mountain, near Hammedabad, Khaffor Dehri, North-West Frontier Province, Pakistan | 
  
           
   | 
   | 
   | Bastnäsite-(Ce) | 
  R060629 | 
  Ce(CO3)F | 
  Gemological Institute of America 03 | 
  Pakistan | 
  
           
   | 
   | 
   | Bastnäsite-(Ce) | 
  R060550 | 
  Ce(CO3)F | 
  Gemological Institute of America 24 | 
  Zagni Mountains, Pakistan | 
  
           
   | 
   | 
   | Bastnäsite-(Ce) | 
  R060737 | 
  Ce(CO3)F | 
  Herb Obodda 081 | 
  Zagi Mountain, near Hammedabad, Khaffor Dehri, NW Frontier Provence, Pakistan | 
  
           
   | 
   | 
   | Bastnäsite-(La) | 
  R070142 | 
  La(CO3)F | 
  Michael Scott S105765 | 
  Mochalin Log, Kyshtym, Chelyabinsk Oblast', Urals Region, Russia | 
  
           
   | 
   | 
   | Baumhauerite | 
  R050429 | 
  Pb12As16S36 | 
  University of Arizona Mineral Museum 2862 | 
  Binntal, Valais, Switzerland | 
  
           
   | 
   | 
   | Bavenite | 
  R060065 | 
  Ca4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1) | 
  University of Arizona Mineral Museum 16163 | 
  Tittling, Bavarian Forest, Bavaria, Germany | 
  
           
   | 
   | 
   | Bavenite | 
  R060128 | 
  Ca4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1) | 
  University of Arizona Mineral Museum 9330 | 
  Foot mine, Kings Mountain, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Bavenite | 
  R060790 | 
  Ca4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1) | 
  Michael Scott S101063 | 
  Londonderry, West Australia, Australia | 
  
           
   | 
   | 
   | Bavsiite | 
  R150042 | 
  Ba2V2O2[Si4O12] | 
  Gunnar Farber  | 
  Gun Claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Bayldonite | 
  R050670 | 
  Cu3PbO(AsO3OH)2(OH)2 | 
  University of Arizona Mineral Museum 4809 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Bayldonite | 
  R110033 | 
  Cu3PbO(AsO3OH)2(OH)2 | 
  William W Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Bayleyite | 
  R070458 | 
  Mg2(UO2)(CO3)3·18H2O | 
  Michael Scott S101759 | 
  Hideout mine (Hideout No. 1 mine), Deer Flats, White Canyon, White Canyon District, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Bazhenovite | 
  R130224 | 
  Ca8S5(S2O3)(OH)12·20H2O | 
  Rock Currier  | 
  Korkino, Chelyabinsk coal basin, S. Urals, Russia | 
  
           
   | 
   | 
   | Beaverite-(Cu) | 
  R060400 | 
  Pb(Fe3+2Cu)(SO4)2(OH)6 | 
  American Museum of Natural History 17785 | 
  Utah, USA | 
  
           
   | 
   | 
   | Béhierite | 
  R060657 | 
  Ta(BO4) | 
  Michael Scott S101149 | 
  Mount Ibity, Antsirabe, Madagascar | 
  
           
   | 
   | 
   | Behoite | 
  R060659 | 
  Be(OH)2 | 
  Michael Scott S101143 | 
  Mont St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Behoite | 
  R130229 | 
  Be(OH)2 | 
  Rock Currier  | 
  Clear Creek pegmatite, Burnet County, Texas, USA | 
  
           
   | 
   | 
   | Behoite | 
  R130230 | 
  Be(OH)2 | 
  Rock Currier  | 
  Rode Ranch pegmatite, Llano County, Texas, USA | 
  
           
   | 
   | 
   | Belendorffite | 
  R070346 | 
  Cu7Hg6 | 
  Michael Scott S100517 | 
  Landsberg Mountain (Moschellandsberg Mountain), Obermoschel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Bellbergite | 
  R100201 | 
  (K,Ba,Sr)2Sr2Ca2(Ca,Na)4(Si,Al)36O72·30H2O | 
  Jürgen Wachsmuth, Ulm, Germany  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Bellingerite | 
  R050607 | 
  Cu3(IO3)6·2H2O | 
  University of Arizona Mineral Museum  | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Belovite-(Ce) | 
  R070163 | 
  NaCeSr3(PO4)3F | 
  Michael Scott S105765 | 
  Mochalin Log, Kyshtym, Chelyabinsk Oblast', Urals Region, Russia | 
  
           
   | 
   | 
   | Benavidesite | 
  R070348 | 
  Pb4MnSb6S14 | 
  Michael Scott S101751 | 
  Bear Basin Mines, Bear Basin, North Bend, King County, Washington, USA | 
  
           
   | 
   | 
   | Bendadaite | 
  R080112 | 
  Fe2+Fe3+2(AsO4)2(OH)2·4H2O | 
  Luiz Menezes  | 
  Almerindo mine, Linópolis district, Divino das Laranjeiras, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Benitoite | 
  R050320 | 
  BaTiSi3O9 | 
  American Museum of Natural History 17493 | 
  San Benito County, California, USA | 
  
           
   | 
   | 
   | Benitoite | 
  R050332 | 
  BaTiSi3O9 | 
  California Institute of Technology W-1863 | 
  Benitoite Gem mine, Santa Rita Peak, San Benito County, California, USA | 
  
           
   | 
   | 
   | Benitoite | 
  X060003 | 
  BaTiSi3O9 | 
  Michael Scott 11306 | 
   | 
  
           
   | 
   | 
   | Benjaminite | 
  R070399 | 
  Ag3Bi7S12 | 
  Michael Scott S101746 | 
  Outlaw Mine, Round Mountain District, Nye County, Nevada, USA | 
  
           
   | 
   | 
   | Benleonardite | 
  R070545 | 
  Ag15Cu(Sb,As)2S7Te4 | 
  Michael Scott S101738 | 
  Moctezuma mine, Moctezuma, Municipio de Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Benstonite | 
  R050484 | 
  Ba6Ca6Mg(CO3)13 | 
  California Institute of Technology W-40011 | 
  Minerva #1 mine, Cave-in-Rock, Hardin County, Illinois, USA | 
  
           
   | 
   | 
   | Benyacarite | 
  R130130 | 
  (H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10·4H2O | 
  Don Doell (small piece), Rock Currier (large piece)  | 
  El Criollo mine, Cerro Blanco, Tanti, Punilla, Córdoba, Argentina | 
  
           
   | 
   | 
   | Beraunite | 
  R060464 | 
  Fe3+6(PO4)4O(OH)4·6H2O | 
  Michael Scott S100187 | 
  York mine, Polk County, Arkansas, USA | 
  
           
   | 
   | 
   | Beraunite | 
  R060696 | 
  Fe3+6(PO4)4O(OH)4·6H2O | 
  Bob Jenkins  | 
  Three Oak Gap, Shady, Polk County, Arkansas, USA | 
  
           
   | 
   | 
   | Berborite | 
  X060021 | 
  Be2(BO3)(OH)·H2O | 
  Rainer Thomas 110135 | 
  Saga, Tvedalen, Langesundfjord/Norge | 
  
           
   | 
   | 
   | Bergslagite | 
  R060243 | 
  CaBe(AsO4)(OH) | 
  Michael Scott S100249 | 
  Langban mine dump, Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Berlinite | 
  R130243 | 
  Al(PO4) | 
  Rock Currier  | 
  Buranga pegmatite, Gatumba District, Western Province, Rwanda | 
  
           
   | 
   | 
   | Bermanite | 
  R130057 | 
  Mn2+Mn3+2(PO4)2(OH)2·4H2O | 
  Thomas A. Loomis TL-13 | 
  Tip Top mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Bernardevansite | 
  R210010 | 
  Al2(Se4+O3)3·6H2O | 
  Bob Jenkins  | 
  El Dragon, Potosi, Bolivia | 
  
           
   | 
   | 
   | Berthierine | 
  R110177 | 
  (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 | 
  Donald Doell  | 
  DeMix quarry, Mont St-Hilaire, Quebec | 
  
           
   | 
   | 
   | Berthierite | 
  R070177 | 
  FeSb2S4 | 
  Michael Scott S101663 | 
  Baia Sprie mine (Felsöbánya mine), Baia Sprie (Felsöbánya), Maramures County, Romania | 
  
           
   | 
   | 
   | Bertossaite | 
  R060666 | 
  Li2CaAl4(PO4)4(OH)4 | 
  Michael Scott S101293 | 
  Buranga, Rwanda | 
  
           
   | 
   | 
   | Bertrandite | 
  R060800 | 
  Be4Si2O7(OH)2 | 
  Bob Jenkins  | 
  Golconda mine, Governador Valadares, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Bertrandite | 
  R110025 | 
  Be4Si2O7(OH)2 | 
    | 
  Foote mine, Kings Mountain, North Carolina, USA | 
  
           
   | 
   | 
   | Beryl | 
  R040002 | 
  Be3Al2Si6O18 | 
  University of Arizona Mineral Museum 15681 | 
  Usakos, Namibia | 
  
           
   | 
   | 
   | Beryl | 
  R050065 | 
  Be3Al2Si6O18 | 
  Rock Currier  | 
  Xuebaoding, Sichuan Province, China | 
  
           
   | 
   | 
   | Beryl | 
  R050120 | 
  Be3Al2Si6O18 | 
  Carlos and Paulo Vasconcelos  | 
  Cruziero mine, San Jose, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Beryl | 
  R050121 | 
  Be3Al2Si6O18 | 
  Carlos and Paulo Vasconcelos  | 
  Cruziero mine, San Jose, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Beryl | 
  X050030 | 
  Be3Al2Si6O18 | 
  G.R. Rossman 194 | 
  Brazil | 
  
           
   | 
   | 
   | Beryl | 
  X050031 | 
  Be3Al2Si6O18 | 
  G.R. Rossman 121 | 
   | 
  
           
   | 
   | 
   | Beryl | 
  R050305 | 
  Be3Al2Si6O18 | 
  Eugene Schlepp  | 
  Conselheiro Pena, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Beryl | 
  R050347 | 
  Be3Al2Si6O18 | 
  California Institute of Technology W-2013 | 
  North Keystone, South Dakota, USA | 
  
           
   | 
   | 
   | Beryl | 
  R050368 | 
  Be3Al2Si6O18 | 
  Eugene Schlepp  | 
  Wah Wah Mountains, Utah, USA | 
  
           
   | 
   | 
   | Beryl | 
  R060942 | 
  Be3Al2Si6O18 | 
  Lawrence W. Snee  | 
  Mingore mine, Swat Valley, Pakistan | 
  
           
   | 
   | 
   | Beryl | 
  R060943 | 
  Be3Al2Si6O18 | 
  Lawrence W. Snee  | 
  Xinjiang, China | 
  
           
   | 
   | 
   | Beryl | 
  R060944 | 
  Be3Al2Si6O18 | 
  Lawrence W. Snee  | 
  Habachtal, Salzburg, Austria | 
  
           
   | 
   | 
   | Beryl | 
  X080008 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 21566 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryl | 
  X080009 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 28348 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryl | 
  X080010 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 23386 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryl | 
  R110100 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 10-12-2010-5 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryl | 
  R110113 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 10-12-2010-18 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryl | 
  R110115 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 10-12-2010-20 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryl | 
  R110118 | 
  Be3Al2Si6O18 | 
  Gemological Institute of America 10-22-2010-23 | 
  Synthetic | 
  
           
   | 
   | 
   | Beryllonite | 
  R060299 | 
  NaBe(PO4) | 
  Herb Obodda 023 | 
  Paprok, near Kamdesh, Nuristan, Kunar Province, Afghanistan | 
  
           
   | 
   | 
   | Beryllonite | 
  R060552 | 
  NaBe(PO4) | 
  Gemological Institute of America 22 | 
  Afghanistan | 
  
           
   | 
   | 
   | Beryllonite | 
  R070249 | 
  NaBe(PO4) | 
  Michael Scott S101679 | 
  Melrose Farm Beryllonite prospects (McAllister prospects),  Stoneham, Oxford County, Maine, USA | 
  
           
   | 
   | 
   | Beryllonite | 
  R100219 | 
  NaBe(PO4) | 
  Luiz Menezes  | 
  Telirio mine, Linopolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Berzelianite | 
  R060260 | 
  Cu2-xSe (x ≈ 0.12) | 
  Michael Scott S100248 | 
  Bukov mine, near Tisnova, Western Moravia, Czechoslovakia | 
  
           
   | 
   | 
   | Berzelianite | 
  R110159 | 
  Cu2-xSe (x ≈ 0.12) | 
  Mark N Feinglos  | 
  Facebaja, Romania | 
  
           
   | 
   | 
   | Berzeliite | 
  X060010 | 
  (NaCa2)Mg2(AsO4)3 | 
  University of Arizona Mineral Museum 2382 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Berzeliite | 
  R061084 | 
  (NaCa2)Mg2(AsO4)3 | 
  Michael Scott S101296 | 
  Jakobsberg mine, Nordmark, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Betekhtinite | 
  R070087 | 
  (Cu,Fe)21Pb2S15 | 
  Michael Scott S101421 | 
  Dzhezkazgan deposit, central Kazakhstan | 
  
           
   | 
   | 
   | Betpakdalite-CaMg | 
  R060242 | 
  [Ca2(H2O)17Mg(H2O)6][Mo6+8As5+2Fe3+3O36(OH)] | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Beudantite | 
  R060985 | 
  PbFe3+3(AsO4)(SO4)(OH)6 | 
  Bob Jenkins  | 
  Kintore Opencut, Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Beudantite | 
  R070189 | 
  PbFe3+3(AsO4)(SO4)(OH)6 | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Beudantite | 
  R070190 | 
  PbFe3+3(AsO4)(SO4)(OH)6 | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Beudantite | 
  R070492 | 
  PbFe3+3(AsO4)(SO4)(OH)6 | 
  Bob Jenkins  | 
  Capitana mine, Copiapó Province, Atacama Region, Chile | 
  
           
   | 
   | 
   | Beudantite | 
  R070502 | 
  PbFe3+3(AsO4)(SO4)(OH)6 | 
  Bob Jenkins  | 
  Dulcinea, Copiapó Province, Atacama Region, Chile | 
  
           
   | 
   | 
   | Beudantite | 
  R100183 | 
  PbFe3+3(AsO4)(SO4)(OH)6 | 
  Marcus Origlieri  | 
  Mina Ojuela (Campo Sur), Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Beusite | 
  R160031 | 
  Mn2+Mn2+2(PO4)2 | 
  Jaroslav Hyršl  | 
  Santa Ana Pegmatite, Argentina | 
  
           
   | 
   | 
   | Bianchite | 
  R070020 | 
  Zn(SO4)·6H2O | 
  Michael Scott S105110 | 
  Equatorial part of Midatlantic Ridge, 5000 m depth, Atlantic Ocean | 
  
           
   | 
   | 
   | Bicchulite | 
  R220020 | 
  Ca2Al2SiO6(OH)2 | 
  Bruce White  | 
  Mono County, California, USA. | 
  
           
   | 
   | 
   | Bieberite | 
  R070595 | 
  Co(SO4)·7H2O | 
  James Shigley  | 
  Nkana mine, Kitwe, Western Province, Zambia | 
  
           
   | 
   | 
   | Bigcreekite | 
  R060432 | 
  BaSi2O5·4H2O | 
  Michael Scott S100244 | 
  Trumbull Peak, Mariposa County, California, USA | 
  
           
   | 
   | 
   | Bikitaite | 
  R050160 | 
  LiAlSi2O6·H2O | 
  Jim McGlasson  | 
  Foote mine, Kings Mountain, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Bikitaite | 
  R060032 | 
  LiAlSi2O6·H2O | 
  University of Arizona Mineral Museum 5397 | 
  Al Hyat mine, Bikita, Fort Victoria, Southern Rhodesia | 
  
           
   | 
   | 
   | Bílinite | 
  R070187 | 
  Fe2+Fe3+2(SO4)4·22H2O | 
  James Shigley  | 
  Runge mine, near Edgemont, Fall River County, South Dakota, USA | 
  
           
   | 
   | 
   | Billietite | 
  R070588 | 
  Ba(UO2)6O4(OH)6·8H2O | 
  James Shigley  | 
  Musonoi mine, Kolwezi, Katanga, Zaire | 
  
           
   | 
   | 
   | Billietite | 
  R070624 | 
  Ba(UO2)6O4(OH)6·8H2O | 
  Joan Abella i Creus  | 
  Eureka mine, Castell Estaó, La Plana de Mont-ros, La Torre de Capdella, Lleida, Catalonia, Spain | 
  
           
   | 
   | 
   | Billingsleyite | 
  R070350 | 
  Ag7AsS6 | 
  Michael Scott S100507 | 
  North Lily Mine, East Tintic District, East Tintic Mts, Utah County, Utah, USA | 
  
           
   | 
   | 
   | Billwiseite | 
  R130070 | 
  Sb3+5Nb3WO18 | 
  Frank C. Hawthorne  | 
  Eastern margin of the Nanga Parbat – Haramosh massif at Stak Nala, 70 km east of Gilgit, Pakistan | 
  
           
   | 
   | 
   | Bindheimite | 
  R050546 | 
  Pb2Sb5+2O7 | 
  University of Arizona Mineral Museum 4882 | 
  Arabia District, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Biphosphammite | 
  R070206 | 
  (NH4)H2(PO4) | 
  Jacqueline Reynard and Gregory Schmidt  | 
  Synthetic by Udo J. A. Behner | 
  
           
   | 
   | 
   | Biphosphammite | 
  R070411 | 
  (NH4)H2(PO4) | 
  Michael Scott S104821 | 
  Mason Bat Cave, Mason County, Texas, USA | 
  
           
   | 
   | 
   | Biphosphammite | 
  R180019 | 
  (NH4)H2(PO4) | 
  Peter Megaw  | 
  Ojuela mine, Mapimí, Municipio de Mapimí, Durango, Mexico | 
  
           
   | 
   | 
   | Birchite | 
  R150100 | 
  Cd2Cu2(PO4)2(SO4)·5H2O | 
  William W. Pinch  | 
  Block 14 Opencut, Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Bisbeeite | 
  R060317 | 
   | 
  Herb Obodda 051 | 
  Shangulowe, Katanga Province, Democratic Republic of Congo | 
  
           
   | 
   | 
   | Bismite | 
  R070185 | 
  Bi2O3 | 
  Michael Scott S104823 | 
  Berezovskii, Ekaterinberg, Sverdlovskaya Oblast', Ural Region, Russia | 
  
           
   | 
   | 
   | Bismoclite | 
  R100197 | 
  BiOCl | 
  Bob Jenkins  | 
  El Guanaco Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Bismuth | 
  R050650 | 
  Bi | 
  University of Arizona Mineral Museum 16274 | 
  Wolfram Camp, Queensland, Australia | 
  
           
   | 
   | 
   | Bismuth | 
  R070375 | 
  Bi | 
  Royal Ontario Museum M14615 | 
  Frontier mine, South Lorrain, Timiskaming District, Ontario, Canada | 
  
           
   | 
   | 
   | Bismuthinite | 
  R061077 | 
  Bi2S3 | 
  Lloyd Twaites LT1259 | 
  Jersey mine, Salmo, British Columbia, Canada | 
  
           
   | 
   | 
   | Bismuthinite | 
  R070533 | 
  Bi2S3 | 
  James Shigley  | 
  Llallagua, Bustillos Province, Potosi, Bolivia | 
  
           
   | 
   | 
   | Bismuthinite | 
  R070617 | 
  Bi2S3 | 
  James Shigley  | 
  Hachita, Grants County, New Mexico, USA | 
  
           
   | 
   | 
   | Bismutite | 
  R050634 | 
  Bi2O2(CO3) | 
  University of Arizona Mineral Museum 13158 | 
  Outpost mine, Wickenburg, White Picacho District, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Bismutite | 
  R060665 | 
  Bi2O2(CO3) | 
  Michael Scott S101282 | 
  Ecuador, Rio Grande do Norte, Brazil | 
  
           
   | 
   | 
   | Bismutotantalite | 
  R130254 | 
  BiTaO4 | 
  Rock Currier  | 
  Wampewo Hill, Busiiro Co. (Bushiro Co.), Wakiso District, Uganda | 
  
           
   | 
   | 
   | Bismutotantalite | 
  R130778 | 
  BiTaO4 | 
  Rock Currier  | 
  Mbale Estate, Singo, West of Kanipala, Uganda | 
  
           
   | 
   | 
   | Bixbyite-(Fe) | 
  R050395 | 
  Fe3+2O3 | 
  Marcus Origlieri  | 
  Thomas Range, Juab County, Utah, USA | 
  
           
   | 
   | 
   | Bjarebyite | 
  R130107 | 
  BaMn2+2Al2(PO4)3(OH)3 | 
  Rock Currier  | 
  Buranga mine, Gatumba District, Western Province, Rwanda | 
  
           
   | 
   | 
   | Bjarebyite | 
  R130106 | 
  BaMn2+2Al2(PO4)3(OH)3 | 
  Donald Doell (small piece), Rock Currier (large Piece)  | 
  Palermo #1 mine, North Groton, New Hampshire | 
  
           
   | 
   | 
   | Blatonite | 
  R060594 | 
  (UO2)(CO3)·H2O | 
  Michael Scott S100794 | 
  Jomac mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Blixite | 
  R070364 | 
  Pb8O5(OH)2Cl4 | 
  Michael Scott S106185 | 
  Upper Bolivia Stope, 185 m level, Nya Schaktet Shaft, Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Blödite | 
  R050317 | 
  Na2Mg(SO4)2·4H2O | 
  American Museum of Natural History 65127 | 
  Stassfurt, Germany | 
  
           
   | 
   | 
   | Blödite | 
  R050341 | 
  Na2Mg(SO4)2·4H2O | 
  George Rossman  | 
  Soda Lake, San Luis Obispo County, California, USA | 
  
           
   | 
   | 
   | Bobdownsite | 
  R050109 | 
  Ca9Mg(PO3F)(PO4)6 | 
  Rock Currier  | 
  Big Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Bobdownsite | 
  R070653 | 
  Ca9Mg(PO3F)(PO4)6 | 
  Rock Currier  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Bobdownsite | 
  R070654 | 
  Ca9Mg(PO3F)(PO4)6 | 
  Rock Currier  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Bobdownsite | 
  R100214 | 
  Ca9Mg(PO3F)(PO4)6 | 
  Tom Loomis, Dakota Matrix Minerals #120908W-2 | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Bobdownsite | 
  R100215 | 
  Ca9Mg(PO3F)(PO4)6 | 
  Tom Loomis, Dakota Matrix Minerals  #120908W-4 | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Bobdownsite | 
  R110026 | 
  Ca9Mg(PO3F)(PO4)6 | 
  Tom Loomis, Dakota Matrix Minerals #120908W-3 | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Bobfergusonite | 
  R160069 | 
  ◻Na2Mn2+5Fe3+Al(PO4)6 | 
  Thomas A. Loomis  | 
  Nancy Pegmatite, Chacabuco Dept, San Luis, Argentina | 
  
           
   | 
   | 
   | Bobierrite | 
  R060681 | 
  Mg3(PO4)2·8H2O | 
  Michael Scott S101377 | 
  Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Bobjonesite | 
  R060530 | 
  V4+O(SO4)·3H2O | 
  Michael Scott S100781 | 
  Petrified log in the North Mesa 5 mine, Temple Mountain, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Bobjonesite | 
  R060577 | 
  V4+O(SO4)·3H2O | 
  Michael Scott S100806 | 
  Petrified log in the North Mesa 5 mine, Temple Mountain, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Bobkingite | 
  R141030 | 
  Cu5Cl2(OH)8·2H2O | 
  William W. Pinch and Robert Pecorini  | 
  Cerro Minado Mines, Cuesta Alta, Huércal-Overa, Almería, Andalusia, Spain | 
  
           
   | 
   | 
   | Bobmeyerite | 
  R220009 | 
  Pb4(Al3Cu)(Si4O12)(S0.5Si0.5O4)(OH)7Cl(H2O)3 | 
  Bob Jenkins  | 
  Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA | 
  
           
   | 
   | 
   | Bobtraillite | 
  R070414 | 
  (Na,◻)12(◻,Na)12Sr12Zr14(Si3O9)10[Si2BO7(OH)2]6·12H2O | 
  Michael Scott S101831 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Böhmite | 
  R120133 | 
  AlO(OH) | 
  Ivano Rocchetti  | 
  Maglio-Pornaro, Tretto di Schio, Vicenza, Italy | 
  
           
   | 
   | 
   | Böhmite | 
  R120123 | 
  AlO(OH) | 
  Marcus Origlieri  | 
  Sagasen, Telemark, Norway | 
  
           
   | 
   | 
   | Bohseite | 
  R220004 | 
  Ca4Be3+xAl1-xSi9O25-x(OH)3+x (x = 0 to 1) | 
  Donald Doell  | 
  Ermakovska, Buryatia, Siberia, Russia | 
  
           
   | 
   | 
   | Bokite | 
  R060590 | 
  (Al,Fe)1.3(V5+,V4+,Fe3+)8O20·7.5H2O | 
  Michael Scott S100790 | 
  Monument #2 mine, Apache County, Arizona, USA | 
  
           
   | 
   | 
   | Boleite | 
  R050022 | 
  KAg9Pb26Cu24Cl62(OH)48 | 
  Eugene Schlepp  | 
  Amelia mine, Boleo, Baja California, Mexico | 
  
           
   | 
   | 
   | Boleite | 
  R130099 | 
  KAg9Pb26Cu24Cl62(OH)48 | 
  Joe Ruiz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Boltwoodite | 
  R060753 | 
  (K,Na)(UO2)(SiO3OH)·1.5H2O | 
  Michael Scott S100288 | 
  Rossing mine, between Rossing & Arandis, near Swakopmund, Namibia | 
  
           
   | 
   | 
   | Bonattite | 
  R070398 | 
  Cu(SO4)·3H2O | 
  Michael Scott S102188 | 
  Undu mine, Nukundamu, Vanua Levu, Fiji | 
  
           
   | 
   | 
   | Bonattite | 
  R070424 | 
  Cu(SO4)·3H2O | 
  Bob Downs  | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Bonazziite | 
  R061028 | 
  As4S4 | 
  Michael Scott S101415 | 
  Radvanice, Bohemia | 
  
           
   | 
   | 
   | Boracite | 
  R060009 | 
  Mg3B7O13Cl | 
  University of Arizona Mineral Museum  | 
  Luneberg, Hannover, Germany | 
  
           
   | 
   | 
   | Boracite | 
  R070317 | 
  Mg3B7O13Cl | 
  James Shigley  | 
  Douglashall, Westereglen, Stassfurt District, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Boralsilite | 
  R140759 | 
  Al16B6O30(Si2O7) | 
  Edward S. Grew 121102A | 
  Larsemann Hills, Prydz Bay, Ingrid Christensen Coast, Princess Elizabeth Land, Eastern Antarctica, Antarctica | 
  
           
   | 
   | 
   | Borax | 
  R070168 | 
  Na2B4O5(OH)4·8H2O | 
  Michael Scott S101857 | 
  Boron, Kramer District, Kern County, California, USA | 
  
           
   | 
   | 
   | Borcarite | 
  R060591 | 
  Ca4MgB4O6(CO3)2(OH)6 | 
  Michael Scott S100788 | 
  Fuka mine, Bitchu-cho, Takahashi, Kawakami-gun, Okayama Prefecture, Chugoku Region, Japan | 
  
           
   | 
   | 
   | Borcarite | 
  R110094 | 
  Ca4MgB4O6(CO3)2(OH)6 | 
  Rob Lavinsky  | 
  Inner Mongolia, China | 
  
           
   | 
   | 
   | Bornite | 
  R050322 | 
  Cu5FeS4 | 
  Lloyd Twaites  | 
  Bethlehem Copper mine, Highland Valley, Logan Lake, British Columbia, Canada | 
  
           
   | 
   | 
   | Bornite | 
  R070636 | 
  Cu5FeS4 | 
  Michael Scott S100287 | 
  mine 65, 180 m. level, Dzheskazgan mining district, central Kazakhstan | 
  
           
   | 
   | 
   | Borocookeite | 
  R080076 | 
  LiAl4(Si3B)O10(OH)8 | 
  Michael Scott 1005113 | 
  Malkhan Range, Central Transbaikal Region, Russia | 
  
           
   | 
   | 
   | Boromuscovite | 
  R070107 | 
  KAl2(Si3B)O10(OH)2 | 
  Jeffrey E. Patterson 3,4,5 | 
  Little 3 mine, Ramona, California, USA | 
  
           
   | 
   | 
   | Botallackite | 
  R070066 | 
  Cu2Cl(OH)3 | 
  Bob Jenkins  | 
  Levante mine, St. Just, Cornwall, England | 
  
           
   | 
   | 
   | Botallackite | 
  R080012 | 
  Cu2Cl(OH)3 | 
  William W. Pinch  | 
  Cligga Head, Cornwall, England | 
  
           
   | 
   | 
   | Botryogen | 
  R070362 | 
  MgFe3+(SO4)2(OH)·7H2O | 
  Michael Scott S102842 | 
  Queténa Mine, Calama, El Loa Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Botryogen | 
  R070581 | 
  MgFe3+(SO4)2(OH)·7H2O | 
  James Shigley  | 
  Redington mine, Knoxville, Napa County, California, USA | 
  
           
   | 
   | 
   | Bottinoite | 
  R060263 | 
  NiSb5+2(OH)12·6H2O | 
  Michael Scott S100250 | 
  Ramsbeck mine, Dornberg, Sauerland, Germany | 
  
           
   | 
   | 
   | Boulangerite | 
  R050436 | 
  Pb5Sb4S11 | 
  University of Arizona Mineral Museum 13704 | 
  Noche Buena mine, Noche Buena, Municipio de Mazapil, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Boulangerite | 
  R050441 | 
  Pb5Sb4S11 | 
  University of Arizona Mineral Museum 5495 | 
  Sullivan mine, Kimberley, British Columbia, Canada | 
  
           
   | 
   | 
   | Bournonite | 
  R050111 | 
  CuPbSbS3 | 
  He Xin Jian  | 
  Yao Gang Xian mine, Chenzhou, Hunan Province, China | 
  
           
   | 
   | 
   | Bournonite | 
  R050364 | 
  CuPbSbS3 | 
  University of Arizona Mineral Museum 7088 | 
  Neudorf, Harz Mountains, Austria | 
  
           
   | 
   | 
   | Boukaite | 
  R220022 | 
  (MoO2)2O(SO3OH)2(H2O)2·2H2O | 
  Jim McGlasson  | 
  Cooke's Peak, Cookes Range, Luna County, New Mexico, USA | 
  
           
   | 
   | 
   | Boussingaultite | 
  R061027 | 
  (NH4)2Mg(SO4)2·6H2O | 
  Michael Scott S101482 | 
  Kladno, Bohmen, Czech Republic | 
  
           
   | 
   | 
   | Boussingaultite | 
  R070597 | 
  (NH4)2Mg(SO4)2·6H2O | 
  James Shigley  | 
  The Geysers, near Cloverdale, Sonoma County, California, USA | 
  
           
   | 
   | 
   | Bowieite | 
  R070409 | 
  Rh2S3 | 
  Michael Scott S104780 | 
  Novoseltsi, Burgas Oblast (Bourgas Oblast), Bulgaria | 
  
           
   | 
   | 
   | Braccoite | 
  R220040 | 
  NaMn2+5[Si5O14(OH)](AsO3)(OH) | 
  Fernando Cámara  | 
  Valletta mine, Maira Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Brackebuschite | 
  R050547 | 
  Pb2Mn3+(VO4)2(OH) | 
  University of Arizona Mineral Museum 2423 | 
  Cordoba, Argentina | 
  
           
   | 
   | 
   | Brackebuschite | 
  R100087 | 
  Pb2Mn3+(VO4)2(OH) | 
  Mark Ascher  | 
  C & B mine, Hayden, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Bradaczekite | 
  R070029 | 
  NaCuCuCu2(AsO4)3 | 
  Michael Scott S105114 | 
  main fracture, N breakthrough, Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Braggite | 
  R070567 | 
  PdPt3S4 | 
  James Shigley  | 
  Minneapolis Adit, J M Reef, Stillwater Complex, Beartooth Mountains, Stillwater County, Montana, USA | 
  
           
   | 
   | 
   | Braitschite-(Ce) | 
  R060008 | 
  Ca6.15Na0.85REE2.08[B6O7(OH)3(O,OH)3]4·H2O | 
  University of Arizona Mineral Museum 11435 | 
  Texas Gulf Sulfur Potash mine, Cisco, Utah, USA | 
  
           
   | 
   | 
   | Branchite | 
  R180006 | 
  C20H34 | 
  Rock Currier  | 
  Santa Barbara mine, San Giovanni, Valdarno, Italy | 
  
           
   | 
   | 
   | Brandtite | 
  R070170 | 
  Ca2Mn2+(AsO4)2·2H2O | 
  Michael Scott S103207 | 
  Harstigen Mine, Pajsberg, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Brannerite | 
  R060613 | 
  UTi2O6 | 
  Michael Scott S100886 | 
  Crocker's Well, South Australia, Australia | 
  
           
   | 
   | 
   | Brannerite | 
  R080091 | 
  UTi2O6 | 
  Michael Scott S100886 | 
  Crocker's Well, South Australia, Australia | 
  
           
   | 
   | 
   | Brannockite | 
  R070278 | 
  KSn2(Li3Si12)O30 | 
  Michael Scott S101215 | 
  Foote Lithium County mine (Foote mine), Kings Mountain District, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Brannockite | 
  R070410 | 
  KSn2(Li3Si12)O30 | 
  Michael Scott S102814 | 
  Foote Lithium County mine (Foote mine), Kings Mountain District, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Brassite | 
  R060042 | 
  Mg(AsO3OH)·4H2O | 
  University of Arizona Mineral Museum 16150 | 
  Bohemia Region, Svornost mine, Jachymov, Czech Republic | 
  
           
   | 
   | 
   | Braunite | 
  R050385 | 
  Mn2+Mn3+6O8(SiO4) | 
  University of Arizona Mineral Museum 3754 | 
  Jhabua District, Madhya Pradesh, India | 
  
           
   | 
   | 
   | Braunite | 
  R050388 | 
  Mn2+Mn3+6O8(SiO4) | 
  University of Arizona Mineral Museum 3751 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Braunite | 
  R050390 | 
  Mn2+Mn3+6O8(SiO4) | 
  University of Arizona Mineral Museum 7721 | 
  Oehrenstock, Thuringia, Germany | 
  
           
   | 
   | 
   | Braunite | 
  R090057 | 
  Mn2+Mn3+6O8(SiO4) | 
  Marshall Sussman  | 
  N'Chwaning III Mine, N'Chwaning Mines, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Brazilianite | 
  R050126 | 
  NaAl3(PO4)2(OH)4 | 
  Carlos and Paulo Vasconcelos  | 
  Linopolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Brazilianite | 
  R050319 | 
  NaAl3(PO4)2(OH)4 | 
  American Museum of Natural History 71603 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Brazilianite | 
  R050504 | 
  NaAl3(PO4)2(OH)4 | 
  Marcus Origlieri  | 
  Córrego Frio, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Breithauptite | 
  R060928 | 
  NiSb | 
  Royal Ontario Museum M9968 | 
  Cobalt, Ontario, Canada | 
  
           
   | 
   | 
   | Brendelite | 
  R130059 | 
  (Bi,Pb)2(Fe3+,Fe2+)O2(OH)(PO4) | 
  William W. Pinch  | 
  Güldener Falk mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Brenkite | 
  R060247 | 
  Ca2(CO3)F2 | 
  Michael Scott S100302 | 
  Schellkopf, Brenk, Eifel, Germany | 
  
           
   | 
   | 
   | Brewsterite-Ba | 
  R070120 | 
  Ba(Al2Si6)O16·5H2O | 
  Michael Scott S100415 | 
  Strontian, North West Highlands (Argyllshire), Scotland, UK | 
  
           
   | 
   | 
   | Brewsterite-Sr | 
  R070227 | 
  Sr(Al2Si6)O16·5H2O | 
  Michael Scott S101852 | 
  Strontian, North West Highlands (Argyllshire), Scotland, UK | 
  
           
   | 
   | 
   | Brezinaite | 
  R070042 | 
  Cr3S4 | 
  Michael Scott S105111 | 
  Tucson meteorite, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Brianyoungite | 
  R060431 | 
  Zn3(CO3)(OH)4 | 
  Michael Scott S100259 | 
  Brownley Hill mine, Nenthead, Cumbria, England | 
  
           
   | 
   | 
   | Bridgesite-(Ce) | 
  R230003 | 
  CaCe2Cu6(SO4)4(OH)12·8H2O | 
  Neil Hubbard  | 
  Tynebottom Mine, Cumbria, United Kingdom | 
  
           
   | 
   | 
   | Bridgmanite | 
  R210006 | 
  MgSiO3 | 
  Jurgen Konzett TP-MA-6 | 
  Synthesized at at 20-25 GPa and 1600-1700 °C | 
  
           
   | 
   | 
   | Britholite-(Ce) | 
  R130281 | 
  (Ce,Ca)5(SiO4)3(OH) | 
  Rock Currier  | 
  Oka complex, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada | 
  
           
   | 
   | 
   | Britvinite | 
  R070639 | 
  Pb14Mg9(Si10O28)(BO3)4(CO3)2(OH)12F2 | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Brizziite | 
  R060611 | 
  NaSbO3 | 
  Michael Scott S101113 | 
  Le Cetine di Cotorniano, Chiusdino, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Brizziite | 
  R220041 | 
  NaSbO3 | 
  Erica Bittarello  | 
  Pereta mine, Tuscany, Italy | 
  
           
   | 
   | 
   | Brochantite | 
  R060117 | 
  Cu4(SO4)(OH)6 | 
  University of Arizona Mineral Museum 16558 | 
  M'sesa mine, Likasi, Katanga Province, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Brochantite | 
  R060133 | 
  Cu4(SO4)(OH)6 | 
  University of Arizona Mineral Museum 13625 | 
  Shattuck mine, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Brochantite | 
  R100199 | 
  Cu4(SO4)(OH)6 | 
  Donald K Olson  | 
  Milpillas mine, Municipio de Santa Cruz, Sonora, Mexico | 
  
           
   | 
   | 
   | Bromargyrite | 
  R060661 | 
  AgBr | 
  Michael Scott S101229 | 
  Schone Aussicht, near Dernbach, Nassau, Germany | 
  
           
   | 
   | 
   | Bromargyrite | 
  R070338 | 
  AgBr | 
  James Shigley  | 
  Broken Hill Mine, Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Bromellite | 
  X050194 | 
  BeO | 
  Marcus Origlieri  | 
  synthetic | 
  
           
   | 
   | 
   | Brookite | 
  R050363 | 
  TiO2 | 
  University of Arizona Mineral Museum 10197 | 
  Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Brookite | 
  R050591 | 
  TiO2 | 
  Wayne Thompson  | 
  Taftan, near Dalbandi, Baluchistan, Pakistan | 
  
           
   | 
   | 
   | Brookite | 
  R130225 | 
  TiO2 | 
  Don Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Brownmillerite | 
  R130105 | 
  Ca2Fe3+AlO5 | 
  Donald Doell  | 
  Ettringer Feld, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Brucite | 
  R040077 | 
  Mg(OH)2 | 
  University of Arizona Mineral Museum 7404 | 
  Gabbs, Nye County, Nevada, USA | 
  
           
   | 
   | 
   | Brucite | 
  R050455 | 
  Mg(OH)2 | 
  University of Arizona Mineral Museum 7401 | 
  Texas, Lancaster County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Brunogeierite | 
  R090012 | 
  Fe2+2Ge4+O4 | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Brushite | 
  R070554 | 
  Ca(PO3OH)·2H2O | 
  Henry J. Sun  | 
  Biogenic | 
  
           
   | 
   | 
   | Buddingtonite | 
  R061115 | 
  (NH4)(AlSi3)O8 | 
  Michael Scott S104786 | 
  Sharon Heights, Menlo Park, Santa Clara County, California, USA | 
  
           
   | 
   | 
   | Bukovskýite | 
  R050630 | 
  Fe3+2(AsO4)(SO4)(OH)·7H2O | 
  University of Arizona Mineral Museum 10053 | 
  Kutna Hora, Bohemia, Czechoslovakia | 
  
           
   | 
   | 
   | Bulachite | 
  R070243 | 
  Al6(AsO4)3(OH)9(H2O)4·2H2O | 
  Michael Scott S101848 | 
  Sa Malesa, Sarroch, Cagliari Province, Sardinia, Italy | 
  
           
   | 
   | 
   | Bultfonteinite | 
  R050088 | 
  Ca2SiO3(OH)F·H2O | 
  Rock Currier  | 
  N'Chwaning II mine, Kuruman, South Africa | 
  
           
   | 
   | 
   | Bunsenite | 
  R080121 | 
  NiO | 
  William W. Pinch R-5794-1 | 
  Johanngeorgenstadt, Saxony, Germany | 
  
           
   | 
   | 
   | Burangaite | 
  R070408 | 
  NaFe2+Al5(PO4)4(OH)6·2H2O | 
  Michael Scott S100534 | 
  Buranga pegmatite, Gatumba District, Gisenyi Province, Rwanda | 
  
           
   | 
   | 
   | Burbankite | 
  R050646 | 
  (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 | 
  Marcus Origlieri  | 
  Cerro Sapo, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Burbankite | 
  R110199 | 
  (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 | 
  Donald Doell  | 
  Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Burbankite | 
  R120073 | 
  (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Burkeite | 
  R060112 | 
  Na4(SO4)(CO3) | 
  University of Arizona Mineral Museum 3517 | 
  Searles Lake, near Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Buseckite | 
  R130007 | 
  (Fe,Zn,Mn)S | 
  Chi Ma  | 
  Zakłodzie meteorite, Zakłodzie, Poland | 
  
           
   | 
   | 
   | Buserite | 
  R070067 | 
  Na4Mn14O27·21H2O (?) | 
  Michael Scott S101442 | 
  Oppu mine (Lower 7 level), Aomori-ken, Japan | 
  
           
   | 
   | 
   | Bussyite-(Ce) | 
  R120059 | 
  (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4 | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Bustamite | 
  R040014 | 
  Mn2Ca2MnCa(Si3O9)2 | 
  University of Arizona Mineral Museum 13651 | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Butlerite | 
  R110160 | 
  Fe3+(SO4)(OH)·2H2O | 
  George Rossman, California Institute of Technology CIT-9167, GRR186, USNM 95953 | 
  United Verde mine, Jerome, Arizona | 
  
           
   | 
   | 
   | Buttgenbachite | 
  R090013 | 
  Cu36(NO3)2Cl8(OH)62·nH2O | 
  William W. Pinch  | 
  Likasi Mine, Jadotville, Shaba, Zaire | 
  
           
   | 
   | 
   | Bystrite | 
  R060642 | 
  Na7Ca(Al6Si6)O24(S5)2-Cl1- | 
  Michael Scott S100813 | 
  Malaya Bystvaya, Lapis Deposit, Baikal, Russia | 
  
           
   | 
   | 
   | Bytownite | 
  X050032 | 
  (Ca,Na)(Si,Al)4O8 | 
  G.R. Rossman 1812 | 
  Crystal Bay, Minnesota, USA | 
  
           
   | 
   | 
   | Bytownite | 
  X050033 | 
  (Ca,Na)(Si,Al)4O8 | 
  G.R. Rossman 1606 | 
  Casas Grandes, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Cabalzarite | 
  R060658 | 
  CaMg2(AsO4)2·2H2O | 
  Michael Scott S101137 | 
  Falotta, Switzerland | 
  
           
   | 
   | 
   | Cacoxenite | 
  R070141 | 
  Fe3+24AlO6(PO4)17(OH)12·75H2O | 
  Michael Scott S103919 | 
  Rotläufchen Mine, Waldgirmes, Wetzlar, Hesse, Germany | 
  
           
   | 
   | 
   | Cadmoindite | 
  R060748 | 
  CdIn2S4 | 
  Michael Scott S100948 | 
  Kudriavy (Kudryaviy) volcano, Iturup island, Kuril Islands, Russia | 
  
           
   | 
   | 
   | Cafarsite | 
  R080118 | 
  (Ca,Na,◻)19Ti8Fe3+4Fe2+4(AsO3)28F | 
  Renato and Adriana Pagano  | 
  Monte Cervandone, Val Devero, Piedmont, Italy | 
  
           
   | 
   | 
   | Cafetite | 
  R060872 | 
  CaTi2O5·H2O | 
  Michael Scott S101254 | 
  Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Caffeine | 
  D120006 | 
   | 
  David Blake  | 
  Synthetic | 
  
           
   | 
   | 
   | Cahnite | 
  R070182 | 
  Ca2B(AsO4)(OH)4 | 
  Michael Scott S103925 | 
  Vallerano Quarry, Vallerano, Rome, Rome Province, Latium, Italy | 
  
           
   | 
   | 
   | Cahnite | 
  R110095 | 
  Ca2B(AsO4)(OH)4 | 
  Rob Lavinsky  | 
  Inner Mongolia province, China | 
  
           
   | 
   | 
   | Cairncrossite | 
  R150126 | 
  Sr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-x | 
  Arnold Gucsik  | 
  Block 17, Wessels mine, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Calaverite | 
  R060134 | 
  AuTe2 | 
  University of Arizona Mineral Museum 5414 | 
  Cripple Creek, Teller County, Colorado, USA | 
  
           
   | 
   | 
   | Calaverite | 
  R070164 | 
  AuTe2 | 
  Michael Scott S102751 | 
  Vindicator mine, Cripple Creek, Teller County, Colorado, USA | 
  
           
   | 
   | 
   | Calaverite | 
  R070397 | 
  AuTe2 | 
  Michael Scott S102752 | 
  Sacarambu, Transylvania, Romania | 
  
           
   | 
   | 
   | Calcioancylite-(Ce) | 
  R060205 | 
  (Ce,Ca,Sr)(CO3)(OH,H2O) | 
  Royal Ontario Museum M49550 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Calcioancylite-(Ce) | 
  R130005 | 
  (Ce,Ca,Sr)(CO3)(OH,H2O) | 
  Don Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Calcioaravaipaite | 
  R100033 | 
  PbCa2AlF9 | 
  Natural History Museum of Los Angeles County LACMNH 39338 | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Calcioburbankite | 
  R070023 | 
  Na3(Ca,Ce,Sr,La)3(CO3)5 | 
  Michael Scott S105115 | 
  Vuoriyarvi Massif, Murmansk region, Russia | 
  
           
   | 
   | 
   | Calcioburbankite | 
  R140485 | 
  Na3(Ca,Ce,Sr,La)3(CO3)5 | 
  Rock Currier  | 
  Eboundja, Kribi, South Region, Cameroon | 
  
           
   | 
   | 
   | Calcioferrite | 
  R120092 | 
  Ca4MgFe3+4(PO4)6(OH)4·12H2O | 
  Bob Jenkins  | 
  Moculta quarry, Angastan, South Australia, Australia | 
  
           
   | 
   | 
   | Calciouranoite | 
  R070022 | 
  (Ca,Ba,Pb,K,Na)U2O7·5H2O | 
  Michael Scott S105118 | 
  Oktyabr'skoye Mo-U deposit,  east Transbaikal region, Russia | 
  
           
   | 
   | 
   | Calcite | 
  R040070 | 
  Ca(CO3) | 
  University of Arizona Mineral Museum 6965 | 
  Pryor Mountain, Big Horn County, Montana, USA | 
  
           
   | 
   | 
   | Calcite | 
  R040170 | 
  Ca(CO3) | 
  University of Arizona Mineral Museum 13604 | 
  Peramea, Lerida Province, Catalonia, Spain | 
  
           
   | 
   | 
   | Calcite | 
  R050048 | 
  Ca(CO3) | 
  University of Arizona Mineral Museum 14020-93 | 
  Magdalena, New Mexico, USA | 
  
           
   | 
   | 
   | Calcite | 
  R050009 | 
  Ca(CO3) | 
  Eugene Schlepp  | 
  Amparo mine, Rodeo, Durango, Mexico | 
  
           
   | 
   | 
   | Calcite | 
  R050127 | 
  Ca(CO3) | 
  Dave Bunk Minerals  | 
  Rodeo, Durango, Mexico | 
  
           
   | 
   | 
   | Calcite | 
  R050128 | 
  Ca(CO3) | 
  Dave Bunk Minerals  | 
  Tie Siding, Albany County, Wyoming, USA | 
  
           
   | 
   | 
   | Calcite | 
  R050130 | 
  Ca(CO3) | 
  Dave Bunk Minerals  | 
  Mexico | 
  
           
   | 
   | 
   | Calcite | 
  X050034 | 
  Ca(CO3) | 
  Caltech  | 
  unknown | 
  
           
   | 
   | 
   | Calcite | 
  X050035 | 
  Ca(CO3) | 
  G.R. Rossman 178 | 
  Hilton Deposit, San Diego County, California, USA | 
  
           
   | 
   | 
   | Calcite | 
  R050307 | 
  Ca(CO3) | 
  Eugene Schlepp  | 
  Zaire | 
  
           
   | 
   | 
   | Calcite | 
  R150020 | 
  Ca(CO3) | 
  Canan D'Avela  | 
  Creel, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Calcite | 
  R150075 | 
  Ca(CO3) | 
  Michael Scott  | 
  Montana, USA | 
  
           
   | 
   | 
   | Calcurmolite | 
  R070028 | 
  (Ca1-xNax)2(UO2)3(MoO4)2(OH)6-x·nH2O | 
  Michael Scott S105117 | 
  Gornoe, Transbaikal region, Russia | 
  
           
   | 
   | 
   | Calderónite | 
  R050538 | 
  Pb2Fe3+(VO4)2(OH) | 
  Andy Anderson  | 
  Tres de Mayo, Santa Cruz County, Arizona, USA | 
  
           
   | 
   | 
   | Calderónite | 
  R060427 | 
  Pb2Fe3+(VO4)2(OH) | 
  Michael Scott S100243 | 
  Las Colmenitas mine, Santa Marta, Badajoz, Extremadura, Spain | 
  
           
   | 
   | 
   | Caledonite | 
  R060506 | 
  Cu2Pb5(SO4)3(CO3)(OH)6 | 
  Jim Ricker  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Caledonite | 
  R070321 | 
  Cu2Pb5(SO4)3(CO3)(OH)6 | 
  James Shigley  | 
  Soda Lake Mountains, near Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | CaLiBO3 | 
  R110010 | 
   | 
  Jin_Xiao Mi  | 
  Synthetic | 
  
           
   | 
   | 
   | Callaghanite | 
  R050598 | 
  Cu2Mg2(CO3)(OH)6·2H2O | 
  Marcus Origlieri  | 
  Basic Refractories mine, Gabbs District, Nye County, Nevada, USA | 
  
           
   | 
   | 
   | Calomel | 
  R070370 | 
  HgCl | 
  Michael Scott S101876 | 
  Lake County, California, USA | 
  
           
   | 
   | 
   | Calomel | 
  R070499 | 
  HgCl | 
  James Shigley  | 
  Terlingua, Brewster County, Texas, USA | 
  
           
   | 
   | 
   | Calzirtite | 
  R080084 | 
  Ca2Zr5Ti2O16 | 
  Luiz Menezes  | 
  Jacupiranga mine, Cajati, São Paulo, Brazil | 
  
           
   | 
   | 
   | Camaronesite | 
  R150145 | 
  Fe3+2(PO3OH)2(SO4)(H2O)4·1-2H2O | 
  Robert Jenkins  | 
  Camarones Valley, Arica Province, Chile | 
  
           
   | 
   | 
   | Cancrinite | 
  R050352 | 
  (Na,Ca,◻)8(Al6Si6)O24(CO3,SO4)2·2H2O | 
  California Institute of Technology  | 
  York River, quarry #2, Dungannon Township, Ontario, Canada | 
  
           
   | 
   | 
   | Cancrinite | 
  R100110 | 
  (Na,Ca,◻)8(Al6Si6)O24(CO3,SO4)2·2H2O | 
  Robert Woodside  | 
  French River, Ontario, Canada | 
  
           
   | 
   | 
   | Cancrinite | 
  R100111 | 
  (Na,Ca,◻)8(Al6Si6)O24(CO3,SO4)2·2H2O | 
  Robert Woodside  | 
  Dennis Hill, Litchfield, Maine, USA | 
  
           
   | 
   | 
   | Cannizzarite | 
  R060609 | 
  Pb8Bi10S23 | 
  Michael Scott S100973 | 
  Kudryavy volcano, Iturup, Kuril Islands, Russia | 
  
           
   | 
   | 
   | Canosioite | 
  R220035 | 
  Ba2Fe3+(AsO4)2(OH) | 
  Fernando Cámara  | 
  Valletta mine, Maira Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Carbonatecyanotrichite | 
  R060600 | 
  Cu4Al2(CO3)(OH)12·2H2O | 
  Michael Scott S100800 | 
  Jomac mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Caresite | 
  R120028 | 
  Fe2+4Al2(OH)12(CO3)·3H2O | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville County, Québec, Canada | 
  
           
   | 
   | 
   | Carletonite | 
  R050255 | 
  KNa4Ca4Si8O18(CO3)4(F,OH)·H2O | 
  Marcus Origlieri  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Carlosbarbosaite | 
  R110162 | 
  (UO2)2Nb2O6(OH)2·2H2O | 
  Luiz Menezes  | 
  Jaguaracu, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Carlosturanite | 
  R060259 | 
  (Mg,Fe2+,Ti)21(Si,Al)12O28(OH)34·H2O | 
  Michael Scott S100338 | 
  Val Varaita, near Sempeyre, Piedmont, Italy | 
  
           
   | 
   | 
   | Carlsonite | 
  R220026 | 
  (NH4)5Fe3+3O(SO4)6·7H2O | 
  Rock Currier  | 
  Burnside, Northumberland Co., Pennsylvania, USA | 
  
           
   | 
   | 
   | Carminite | 
  R050528 | 
  PbFe3+2(AsO4)2(OH)2 | 
  University of Arizona Mineral Museum 10370 | 
  Las Animas mine, Benjamin Hill, Sonora, Mexico | 
  
           
   | 
   | 
   | Carminite | 
  R061061 | 
  PbFe3+2(AsO4)2(OH)2 | 
  Bob Jenkins  | 
  San Nicolas mine, Badajoz Province, Spain | 
  
           
   | 
   | 
   | Carnallite | 
  R050353 | 
  KMgCl3·6H2O | 
  California Institute of Technology W-22255 | 
  Strassfurt, Germany | 
  
           
   | 
   | 
   | Carnallite | 
  R070291 | 
  KMgCl3·6H2O | 
  Michael Scott S105209 | 
  Leopoldshall, Stassfurt, Stassfurt Deposit, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Carnotite | 
  R070160 | 
  K2(UO2)2(VO4)2·3H2O | 
  James Shigley  | 
  Montrose County, Colorado, USA | 
  
           
   | 
   | 
   | Carnotite | 
  R070345 | 
  K2(UO2)2(VO4)2·3H2O | 
  Michael Scott S101755 | 
  Pick's Delta mine, Delta, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Carnotite | 
  R070647 | 
  K2(UO2)2(VO4)2·3H2O | 
  Lloyd Twaites  | 
  Anderson mine, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Carpathite | 
  R060162 | 
  C24H12 | 
  Marcus Origlieri  | 
  Picacho mine, San Benito County, California, USA | 
  
           
   | 
   | 
   | Carpathite | 
  R060660 | 
  C24H12 | 
  Michael Scott S101203 | 
  Prospect 500 meters north of Picachos mine, south of New Idria, San Benito County, California, USA | 
  
           
   | 
   | 
   | Carpholite | 
  R060608 | 
  Mn2+Al2Si2O6(OH)4 | 
  Michael Scott S100908 | 
  Schlaggenwald, Bohemia, Czechoslovakia | 
  
           
   | 
   | 
   | Carraraite | 
  R130410 | 
  Ca3Ge(SO4)(CO3)(OH)6·12H2O | 
  Don Doell  | 
  Cape d'Or, Cumberland Co., Nova Scotia, Canada | 
  
           
   | 
   | 
   | Carrollite | 
  R040165 | 
  CuCo2S4 | 
  University of Arizona Mineral Museum 12197 | 
  Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Carrollite | 
  R050089 | 
  CuCo2S4 | 
  Rock Currier  | 
  Kambove, Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Carrollite | 
  R130024 | 
  CuCo2S4 | 
  Isabel Fay  | 
  Kisanfu, Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Caryinite | 
  R060663 | 
  NaCaCaMn2(AsO4)3 | 
  Michael Scott S101279 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Caryochroite | 
  R070008 | 
  (Na,Sr)3(Fe3+,Mg)10Ti2Si12O37(H2O,O,OH)17 | 
  Michael Scott S100962 | 
  Umbozero mine, Alluaiv Mt., Lovozero massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Caryopilite | 
  R070180 | 
  Mn2+3Si2O5(OH)4 | 
  Michael Scott S102435 | 
  Gambatesa Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Cascandite | 
  R061048 | 
  CaScSi3O8(OH) | 
  Michael Scott S101434 | 
  Seula Quarry, Baveno, Verbano-Cusio-Ossola, Piedmont, Italy | 
  
           
   | 
   | 
   | Cassiterite | 
  R040017 | 
  SnO2 | 
  University of Arizona Mineral Museum 1647 | 
  Bolivia | 
  
           
   | 
   | 
   | Cassiterite | 
  R040072 | 
  SnO2 | 
  University of Arizona Mineral Museum 1612 | 
  Bolivia | 
  
           
   | 
   | 
   | Cassiterite | 
  R050502 | 
  SnO2 | 
  California Institute of Technology W-20696 | 
  Redruth, Cornwall, England | 
  
           
   | 
   | 
   | Cassiterite | 
  R060563 | 
  SnO2 | 
  Gemological Institute of America 17 | 
  unknown | 
  
           
   | 
   | 
   | Castellaroite | 
  R220036 | 
  Mn2+3(AsO4)2·4.5H2O | 
  Tony Kampf  | 
  Monte Nero mine, Rocchetta Vara, La Spezia, Liguria, Italy | 
  
           
   | 
   | 
   | Castellaroite | 
  R220037 | 
  Mn2+3(AsO4)2·4.5H2O | 
  Tony Kampf  | 
  Valletta mine, Canosio, Cuneo, Piedmont, Italy | 
  
           
   | 
   | 
   | Catapleiite | 
  R040005 | 
  Na2Zr(Si3O9)·2H2O | 
  University of Arizona Mineral Museum 16090 | 
  Langesundsfjord Eikaholmen Vestfold, Norway | 
  
           
   | 
   | 
   | Catapleiite | 
  R060198 | 
  Na2Zr(Si3O9)·2H2O | 
  Royal Ontario Museum M49592 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Catapleiite | 
  R060208 | 
  Na2Zr(Si3O9)·2H2O | 
  Royal Ontario Museum M49584 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Cattierite | 
  R061039 | 
  CoS2 | 
  Michael Scott S101473 | 
  Shinkolobwe, Belgian Congo | 
  
           
   | 
   | 
   | Cavansite | 
  R050400 | 
  Ca(V4+O)(Si4O10)·4H2O | 
  Eugene Schlepp  | 
  Poona, India | 
  
           
   | 
   | 
   | Caysichite-(Y) | 
  R080143 | 
  (Ca,Yb,Er)4Y4(Si8O20)(CO3)6(OH)·7H2O | 
  Mark Feinglos  | 
  Mt. Malos, Zomba District, Malawi | 
  
           
   | 
   | 
   | Cebaite-(Ce) | 
  R060248 | 
  Ba3Ce2(CO3)5F2 | 
  William W. Pinch  | 
  Baiyun-Obo mine, Inner Mongolia, China | 
  
           
   | 
   | 
   | Čechite | 
  R070363 | 
  PbFe2+(VO4)(OH) | 
  Michael Scott S102426 | 
  Alexander mine, Vrancice, Příbram, Central Bohemia Region, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Čechite | 
  R170047 | 
  PbFe2+(VO4)(OH) | 
  Joan Rosell, Tariq Jawhari, Jordi Ibáñez and Xavier Llovet (CCiTUB Barcelona)  | 
  Maria Magdalena mine, Ulldemolins, Priorat, Tarragona, Catalonia, Spain | 
  
           
   | 
   | 
   | Celestine | 
  R040007 | 
  Sr(SO4) | 
  University of Arizona Mineral Museum 12000 | 
  Coahuila, Mexico | 
  
           
   | 
   | 
   | Celestine | 
  R050008 | 
  Sr(SO4) | 
  Eugene Schlepp  | 
  Scofield Quarry, Maybee, Monroe County, Michigan, USA | 
  
           
   | 
   | 
   | Celsian | 
  R060152 | 
  Ba(Al2Si2O8) | 
  Marcus Origlieri  | 
  Benallt mine, Lleyn, Wales | 
  
           
   | 
   | 
   | Celsian | 
  R060460 | 
  Ba(Al2Si2O8) | 
  Michael Scott S100101 | 
  Benallt mine, Rhiw, Leyen Peninsula, Caernarvonshire, Wales | 
  
           
   | 
   | 
   | Celsian | 
  R170048 | 
  Ba(Al2Si2O8) | 
  Gunnar Färber  | 
  Big Creek, Pine Flat Lake, Trimmer, Fresno County, California, USA | 
  
           
   | 
   | 
   | Centennialite | 
  R141189 | 
  CaCu3Cl2(OH)6·nH2O (n ~ 0.7) | 
  University of Arizona Mineral Museum 8789 | 
  4800' level, Centennial mine, Michigan, USA | 
  
           
   | 
   | 
   | Cerianite-(Ce) | 
  R050379 | 
  CeO2 | 
  University of Arizona Mineral Museum 16081 | 
  Sierra de Bermejillo, Durango, Mexico | 
  
           
   | 
   | 
   | Cerite-(CeCa) | 
  R060708 | 
  (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 | 
  Bob Jenkins  | 
  Bastnas, Riddarhyttan, Sweden | 
  
           
   | 
   | 
   | Cerite-(CeCa) | 
  R130614 | 
  (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 | 
  Don Doell  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Černýite | 
  R070179 | 
  Cu2CdSnS4 | 
  Michael Scott S102410 | 
  Hugo mine, Keystone, Keystone District, Pennington County, South Dakota, USA | 
  
           
   | 
   | 
   | Ceruleite | 
  R060261 | 
  CuAl4(AsO4)2(OH)8(H2O)4 | 
  Michael Scott S100068 | 
  Emma Luisa Gold mine, Huanaco, Taltal Province, Chile | 
  
           
   | 
   | 
   | Cerussite | 
  R040069 | 
  Pb(CO3) | 
  University of Arizona Mineral Museum 4206 | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Cerussite | 
  R050011 | 
  Pb(CO3) | 
  Eugene Schlepp  | 
  Daoping Lead and Zinc mine, Gongcheng, Guangxi, China | 
  
           
   | 
   | 
   | Cerussite | 
  R050023 | 
  Pb(CO3) | 
  Eugene Schlepp  | 
  Mammoth - St Anthony mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Cerussite | 
  R050174 | 
  Pb(CO3) | 
  Marcus Origlieri  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Cerussite | 
  R050298 | 
  Pb(CO3) | 
  Eugene Schlepp  | 
  Bunker Hill mine, Shoshone County, Idaho, USA | 
  
           
   | 
   | 
   | Cerussite | 
  R060017 | 
  Pb(CO3) | 
  American Museum of Natural History 34137 | 
  Gonessa, Sardinia, Italy | 
  
           
   | 
   | 
   | Cervandonite-(Ce) | 
  R110070 | 
  (Ce,Nd,La)(Fe3+,Ti,Fe2+,Al)3O2(Si2O7)1-x+y(AsO3)1+x-y(OH)3x-3y | 
  Renato & Adriana Pagano  | 
  Monte Cervandone, Val d'Ossola, Piedmont, Italy | 
  
           
   | 
   | 
   | Cervantite | 
  R060667 | 
  Sb3+Sb5+O4 | 
  Michael Scott S101322 | 
  Touliac, Cantal, France | 
  
           
   | 
   | 
   | Cervantite | 
  R070420 | 
  Sb3+Sb5+O4 | 
  Rafael Barboza  | 
  Wadley District, Catorce Mountains, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Cesbronite | 
  R070198 | 
  Cu3Te6+O4(OH)4 | 
  Michael Scott S101825 | 
  Bambollita mine, Moctezuma, Municipio de Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Cesbronite | 
  R080003 | 
  Cu3Te6+O4(OH)4 | 
  William Pinch  | 
  Montezuma mine, Sonora, Mexico | 
  
           
   | 
   | 
   | Chabazite-Ca | 
  R050014 | 
  Ca2[Al4Si8O24]·13H2O | 
  University of Arizona Mineral Museum 13680 | 
  Tablo Mountain, Baja California, Mexico | 
  
           
   | 
   | 
   | Chabazite-Ca | 
  R050075 | 
  Ca2[Al4Si8O24]·13H2O | 
  Rock Currier  | 
  Victoria, Australia | 
  
           
   | 
   | 
   | Chabazite-Ca | 
  R061096 | 
  Ca2[Al4Si8O24]·13H2O | 
  Michael Scott S102420 | 
  Tyul'bnyunuai Valley, Lovosero, Kola Pen, Russia | 
  
           
   | 
   | 
   | Chabazite-Ca | 
  R070353 | 
  Ca2[Al4Si8O24]·13H2O | 
  Michael Scott S104696 | 
  Maze, Niigata perfecture, Japan | 
  
           
   | 
   | 
   | Chabazite-K | 
  R120032 | 
  (K2NaCa0.5)[Al4Si8O24]·11H2O | 
  Donald Doell  | 
  Kirovskii mine, Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia | 
  
           
   | 
   | 
   | Chabazite-Na | 
  R061095 | 
  (Na3K)[Al4Si8O24]·11H2O | 
  Michael Scott S102419 | 
  Vaitape, Bora Bora, French Polynesia | 
  
           
   | 
   | 
   | Chabazite-Na | 
  R070440 | 
  (Na3K)[Al4Si8O24]·11H2O | 
  Michael Scott S102422 | 
  Faraglione dei Ciclopi, Aci Castello, Catania Province, Sicily, Italy | 
  
           
   | 
   | 
   | Chabournéite | 
  R070371 | 
  AgzTl8-x-zPb4+2xSb40-x-yAsyS68 (with 0.00 ≤ x ≤ 0.40, 16.15 ≤ y ≤ 19.11, 0.04 ≤ z ≤ 0.11) | 
  Michael Scott S101941 | 
  Jas Roux, Pelvoux Mt., Valgaudemar, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France | 
  
           
   | 
   | 
   | Chabournéite | 
  R140106 | 
  AgzTl8-x-zPb4+2xSb40-x-yAsyS68 (with 0.00 ≤ x ≤ 0.40, 16.15 ≤ y ≤ 19.11, 0.04 ≤ z ≤ 0.11) | 
  Rock Currier  | 
  Jas Roux, La Chapelle En Valgaudemard, Hautes-Alpes, Provence-Alpes-Côte D'Azur, France | 
  
           
   | 
   | 
   | Chalcanthite | 
  R050293 | 
  Cu(SO4)·5H2O | 
  George Godas, John Callahan  | 
  79 mine, 4th level, Hayden, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Chalcanthite | 
  R050354 | 
  Cu(SO4)·5H2O | 
  California Institute of Technology W-3954 | 
  Utah, USA | 
  
           
   | 
   | 
   | Chalcanthite | 
  R060018 | 
  Cu(SO4)·5H2O | 
  American Museum of Natural History 25040 | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Chalcanthite | 
  R060102 | 
  Cu(SO4)·5H2O | 
  Jacque Reynard, Greg Schmidt  | 
  synthetic | 
  
           
   | 
   | 
   | Chalcoalumite | 
  R060752 | 
  CuAl4(SO4)(OH)12·3H2O | 
  Bob Jenkins  | 
  Bisbee, Arizona, USA | 
  
           
   | 
   | 
   | Chalcocite | 
  R050067 | 
  Cu2S | 
  Rock Currier  | 
  Flambeau, Rusk County, Wisconsin, USA | 
  
           
   | 
   | 
   | Chalcocite | 
  R070730 | 
  Cu2S | 
  Michael Scott S102930 | 
  La Mesa, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Chalcocite | 
  R120090 | 
  Cu2S | 
  William W Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Chalcocite | 
  R120113 | 
  Cu2S | 
  Rob Lavinsky  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Chalcocite | 
  R130757 | 
  Cu2S | 
  Rob Lavinsky  | 
  China | 
  
           
   | 
   | 
   | Chalcomenite | 
  R060586 | 
  Cu(Se4+O3)·2H2O | 
  Michael Scott S100185 | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Chalcomenite | 
  R100123 | 
  Cu(Se4+O3)·2H2O | 
  William W. Pinch  | 
  Baccu Locci mine, Villaputen, Sardinia | 
  
           
   | 
   | 
   | Chalconatronite | 
  R070366 | 
  Na2Cu(CO3)2·3H2O | 
  Michael Scott S101835 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Chalconatronite | 
  R160004 | 
  Na2Cu(CO3)2·3H2O | 
  Danielle Sotomayor and Keith Wentz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Chalcophanite | 
  R050451 | 
  ZnMn4+3O7·3H2O | 
  University of Arizona Mineral Museum 12296 | 
  Morenci mine, Morenci, Greenlee County, Arizona, USA | 
  
           
   | 
   | 
   | Chalcophanite | 
  R050605 | 
  ZnMn4+3O7·3H2O | 
  University of Arizona Mineral Museum  | 
  Mina Ojuela, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Chalcophanite | 
  R060271 | 
  ZnMn4+3O7·3H2O | 
  Michael Scott S100176 | 
  "Glory Hole", Gold Hill mine, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Chalcophyllite | 
  R060702 | 
  Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O | 
  Bob Jenkins  | 
  Majuba Hill, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Chalcopyrite | 
  R050018 | 
  CuFeS2 | 
  Eugene Schlepp  | 
  Sudbury, Ontario, Canada | 
  
           
   | 
   | 
   | Chalcopyrite | 
  R050208 | 
  CuFeS2 | 
  Lloyd Twaites  | 
  Kidd Creek mine, Timmins, Ontario, Canada | 
  
           
   | 
   | 
   | Chalcopyrite | 
  R050222 | 
  CuFeS2 | 
  Bob Downs  | 
  Iron Cap mine, Landsman Camp, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Chalcopyrite | 
  R050559 | 
  CuFeS2 | 
  Dave Bunk Minerals  | 
  Recuerdo Vein, Haunzala mine, Huallanca District, Dos de Mayo Province, Huanuco Department, Peru | 
  
           
   | 
   | 
   | Chalcosiderite | 
  R060007 | 
  CuFe3+6(PO4)4(OH)8·4H2O | 
  William W. Pinch, Bob Jenkins  | 
  Cerro Negro mine, Carrizalillo, Chile | 
  
           
   | 
   | 
   | Chalcosiderite | 
  R060339 | 
  CuFe3+6(PO4)4(OH)8·4H2O | 
  Michael Scott S100184 | 
  Gunheath Pit, St. Austell, Cornwall, England | 
  
           
   | 
   | 
   | Chalcostibite | 
  R060262 | 
  CuSbS2 | 
  Michael Scott S100331 | 
  Rar el Anz, Wadi of Cherrat, east of Casablanca, Morocco | 
  
           
   | 
   | 
   | Chambersite | 
  R050337 | 
  Mn3B7O13Cl | 
  University of Arizona Mineral Museum 11445 | 
  Barber's Hill salt dome, Mont Belvieu, Chambers County, Texas, USA | 
  
           
   | 
   | 
   | Chambersite | 
  R060425 | 
  Mn3B7O13Cl | 
  Michael Scott S100076 | 
  Venice Dome, Plaquemines Parish, Louisiana, USA | 
  
           
   | 
   | 
   | Chamosite | 
  R060188 | 
  (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 | 
  Lloyd Twaites  | 
  Slesse Creek, Chilliwack, British Columbia, Canada | 
  
           
   | 
   | 
   | Chamosite | 
  R070728 | 
  (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 | 
  Michael Scott S103487 | 
  Mount Shasta, Michigamme, Michigan, USA | 
  
           
   | 
   | 
   | Changoite | 
  R110213 | 
  Na2Zn(SO4)2·4H2O | 
  Gunnar Farber  | 
  La Compania mine, Caracoles, Sierra Gorda, II Region, Atacama Desert, Chile | 
  
           
   | 
   | 
   | Chapmanite | 
  R060910 | 
  Fe3+2Sb3+(Si2O5)O3(OH) | 
  Royal Ontario Museum M14075 | 
  Cobalt, Ontario, Canada | 
  
           
   | 
   | 
   | Charoite | 
  R060376 | 
  (K,Sr,Ba,Mn)15-16(Ca,Na)32[Si70(O,OH)180](OH,F)4·nH2O | 
  Michael Scott S100019 | 
  Chara River area, Murun Massif, northwest Aldan, Siberia, U.S.S.R. | 
  
           
   | 
   | 
   | Charoite | 
  R060557 | 
  (K,Sr,Ba,Mn)15-16(Ca,Na)32[Si70(O,OH)180](OH,F)4·nH2O | 
  Gemological Institute of America 32163 | 
  Russia | 
  
           
   | 
   | 
   | Chayesite | 
  R080059 | 
  KMg4Fe3+[Si12O30] | 
  Michael Scott S101274 | 
  Pauliberg by Landsee, Burgenland, Austria | 
  
           
   | 
   | 
   | Chayesite | 
  R070367 | 
  KMg4Fe3+[Si12O30] | 
  Michael Scott S100519 | 
  Moon Canyon, Woodland, Summit County, Utah, USA | 
  
           
   | 
   | 
   | Chenevixite | 
  R040166 | 
  CuFe3+(AsO4)(OH)2 | 
  Andy Anderson  | 
  Volcanic Sunnyside mine, Santa Cruz County, Arizona, USA | 
  
           
   | 
   | 
   | Chenevixite | 
  R100177 | 
  CuFe3+(AsO4)(OH)2 | 
  Joe Ruiz  | 
  Patagonia Mountains, Harshaw District, Santa Cruz County, Arizona | 
  
           
   | 
   | 
   | Chenite | 
  R130276 | 
  CuPb4(SO4)2(OH)6 | 
  Rock Currier  | 
  Silbershulte, Altenau, Harz Mountains, Germany | 
  
           
   | 
   | 
   | Chenite | 
  R130278 | 
  CuPb4(SO4)2(OH)6 | 
  Neil Hubbard  | 
  Haltcliff Smelter, Caldbeck Fells, Cumbria, England | 
  
           
   | 
   | 
   | Chernovite-(Y) | 
  R070368 | 
  Y(AsO4) | 
  Michael Scott S100535 | 
  Squaw Creek mine, Taylor Creek Tin District (Black Range Tin District), Sierra County, New Mexico, USA | 
  
           
   | 
   | 
   | Chervetite | 
  R080096 | 
  Pb2V5+2O7 | 
  William W. Pinch  | 
  Franceville, Gabon, Africa | 
  
           
   | 
   | 
   | Chesnokovite | 
  R070234 | 
  Na2SiO2(OH)2·8H2O | 
  Michael Scott S100431 | 
  Kedykverpakhk Mt, Lovozero Massif, Kola Peninsula, Murmanskaya Oblast'; Northern Region, Russia | 
  
           
   | 
   | 
   | Chestermanite | 
  R070351 | 
  Mg2(Fe3+,Mg,Al,Sb5+)O2(BO3) | 
  Michael Scott S100529 | 
  Twin Lakes region, Kaiser Peak quadrangle, Fresno County, California, USA | 
  
           
   | 
   | 
   | Chevkinite-(Ce) | 
  R060282 | 
  Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 | 
  Herb Obodda 093 | 
  Arondu, Basha Valley, Baltistan, Pakistan | 
  
           
   | 
   | 
   | Chevkinite-(Ce) | 
  R060419 | 
  Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 | 
  Herb Obodda 110 | 
  Arondu, Basha Valley, Baltistan, Pakistan | 
  
           
   | 
   | 
   | Chiavennite | 
  R070349 | 
  CaMn2+(BeOH)2Si5O13·2H2O | 
  Michael Scott S104801 | 
  Tvedalen, Larvik, Vestfold, Norway | 
  
           
   | 
   | 
   | Childrenite | 
  R060146 | 
  Fe2+Al(PO4)(OH)2·H2O | 
  Marcus Origlieri  | 
  George and Charlotte mine, Tavistock, Devon, England | 
  
           
   | 
   | 
   | Childrenite | 
  R070538 | 
  Fe2+Al(PO4)(OH)2·H2O | 
  James Shigley  | 
  Llallagua, Bustillos Province, Potosi, Bolivia | 
  
           
   | 
   | 
   | Chiolite | 
  R050412 | 
  Na5Al3F14 | 
  G.R. Rossman MK299 | 
  Ivigtut cryolite deposit, Arsuk Fjord, Greenland | 
  
           
   | 
   | 
   | Chistyakovaite | 
  R070024 | 
  Al(UO2)2(AsO4)2F·6.5H2O | 
  Michael Scott S105087 | 
  Bota-Burum U deposit, Kazakhstan | 
  
           
   | 
   | 
   | Chkalovite | 
  R060682 | 
  Na2BeSi2O6 | 
  Michael Scott S101378 | 
  Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Chlorapatite | 
  R060192 | 
  Ca5(PO4)3Cl | 
  Luiz Menezes  | 
  Parelhas, Rio Grande de Norte, Brazil | 
  
           
   | 
   | 
   | Chlorargyrite | 
  R050360 | 
  AgCl | 
  University of Arizona Mineral Museum 13643 | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Chlorartinite | 
  R060878 | 
  Mg2(CO3)Cl(OH)·2.5H2O | 
  Michael Scott S100952 | 
  500m level, Quarry of Udachnaya-Vostochnaya pipe, Yakutia, Russia | 
  
           
   | 
   | 
   | Chlorbartonite | 
  R070178 | 
  K6Fe24S26Cl | 
  Michael Scott S100508 | 
  Coyote Peak, Orick, Humboldt County, California, USA | 
  
           
   | 
   | 
   | Chlorbartonite | 
  R070369 | 
  K6Fe24S26Cl | 
  Michael Scott S104805 | 
  Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Chloritoid | 
  R050334 | 
  Fe2+Al2O(SiO4)(OH)2 | 
  George Rossman 2341 | 
  Selçuk, Mugla Province, Turkey | 
  
           
   | 
   | 
   | Chloritoid | 
  R060292 | 
  Fe2+Al2O(SiO4)(OH)2 | 
  Herb Obodda 080 | 
  Pech, Kunar Province, Afghanistan | 
  
           
   | 
   | 
   | Chlormayenite | 
  R130063 | 
  Ca12Al14O32[◻4Cl2] | 
  Chi Ma  | 
  Northwest Africa (NWA) 1934 meteorite | 
  
           
   | 
   | 
   | Chlorophoenicite | 
  R140135 | 
  (Mn,Mg,Zn)3Zn2(AsO4)(OH,O)6 | 
  Rock Currier  | 
  Franklin, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Chloroquine diphosphate | 
  D120013 | 
   | 
  David Blake  | 
  Synthetic from Sigma | 
  
           
   | 
   | 
   | Chloroxiphite | 
  R060267 | 
  Pb3CuO2Cl2(OH)2 | 
  Michael Scott S100325 | 
  Merehead Quarry, Mendips, Somerset, England | 
  
           
   | 
   | 
   | Choloalite | 
  R070140 | 
  (Pb,Ca)3(Cu,Sb)3Te6O18Cl | 
  Michael Scott S104811 | 
  McAlpine Mine, Moccasin, Tuolumne County, California, USA | 
  
           
   | 
   | 
   | Choloalite | 
  R180017 | 
  (Pb,Ca)3(Cu,Sb)3Te6O18Cl | 
  Mark Feinglos  | 
  Bambollita mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Chondrodite | 
  R040016 | 
  Mg5(SiO4)2F2 | 
  University of Arizona Mineral Museum 4521 | 
  Vastmanland, Kafveltorp, Sweden | 
  
           
   | 
   | 
   | Chondrodite | 
  R110158 | 
  Mg5(SiO4)2F2 | 
  Marcus Origlieri  | 
  Pein Pyit, Mogok, Mandalay Division, Burma | 
  
           
   | 
   | 
   | Christelite | 
  R060792 | 
  Zn3Cu2(SO4)2(OH)6·4H2O | 
  Bob Jenkins  | 
  San Francisco mine, Sierra Gorda, Chile | 
  
           
   | 
   | 
   | Christofschäferite-(Ce) | 
  R141090 | 
  (Ce,La,Ca)4Mn(Ti,Fe)3(Fe,Ti)(Si2O7)2O8 | 
  Ch. and H. Schäfer  | 
  Wingertsberg pumice quarry, Laach lake volcano, Mendig, Eifel, Germany | 
  
           
   | 
   | 
   | Chromatite | 
  R130086 | 
  CaCr6+O4 | 
  Jessy Gillot (Laboratory Manager Imaging & Microstructural Analysis, Saint-Gobain Recherche, France)  | 
  Synthetic | 
  
           
   | 
   | 
   | Chromite | 
  R110059 | 
  Fe2+Cr2O4 | 
  James Shigley  | 
  Mount Diablo, Contra Costa County, California, USA | 
  
           
   | 
   | 
   | Chromite | 
  R110060 | 
  Fe2+Cr2O4 | 
  James Shigley  | 
  Pilliken mine, south of Auburn, El Dorado County, California, USA | 
  
           
   | 
   | 
   | Chrysoberyl | 
  R040073 | 
  BeAl2O4 | 
  University of Arizona Mineral Museum 195 | 
  Brazil | 
  
           
   | 
   | 
   | Chrysoberyl | 
  X050037 | 
  BeAl2O4 | 
  RD Shannon 56163- 42 | 
  synthetic | 
  
           
   | 
   | 
   | Chrysoberyl | 
  R080110 | 
  BeAl2O4 | 
  Shinichi Kihara  | 
  Ratonapura, Sri Lanka | 
  
           
   | 
   | 
   | Chrysoberyl | 
  X080002 | 
  BeAl2O4 | 
  Gemological Institute of America 37457 | 
  Synthetic | 
  
           
   | 
   | 
   | Chrysoberyl | 
  X080004 | 
  BeAl2O4 | 
  Gemological Institute of America 17018 | 
  Synthetic | 
  
           
   | 
   | 
   | Chrysoberyl | 
  R100130 | 
  BeAl2O4 | 
  William W. Pinch  | 
  Ratnapura district, Sri Lanka | 
  
           
   | 
   | 
   | Chrysoberyl | 
  R110103 | 
  BeAl2O4 | 
  Gemological Institute of America 10-12-2010-8 | 
  Synthetic | 
  
           
   | 
   | 
   | Chrysoberyl | 
  R110114 | 
  BeAl2O4 | 
  Gemological Institute of America 10-12-2010-19 | 
  Synthetic | 
  
           
   | 
   | 
   | Chrysoberyl | 
  P000032 | 
  BeAl2O4 | 
  ScottLab P000032 | 
  Virtual | 
  
           
   | 
   | 
   | Chrysocolla | 
  R050053 | 
  (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O | 
  University of Arizona Mineral Museum 12921 | 
  Pima open pit, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Chrysocolla | 
  R060547 | 
  (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O | 
  Gemological Institute of America 12169 | 
  unknown | 
  
           
   | 
   | 
   | Chrysotile | 
  R070088 | 
  Mg3Si2O5(OH)4 | 
  Lloyd Twaites LT608 | 
  Cassiar Asbestos mine, Cassiar, British Columbia, Canada | 
  
           
   | 
   | 
   | Chrysotile | 
  R070355 | 
  Mg3Si2O5(OH)4 | 
  Michael Scott S105818 | 
  Nizhniy Tagil, Ural, Russia | 
  
           
   | 
   | 
   | Chukhrovite-(Ca) | 
  R130040 | 
  Ca3Ca1.5Al2(SO4)F13·12H2O | 
  Frederic Hatert  | 
  Val Cavallizza Pb–Zn–Ag mine, Cuasso al Monte, Varese province, Italy | 
  
           
   | 
   | 
   | Chukhrovite-(Nd) | 
  R060601 | 
  Ca3NdAl2(SO4)F13·12H2O | 
  Michael Scott S101019 | 
  Kara-Oba tungsten deposit, Betpakdala desert, Kazakhstan | 
  
           
   | 
   | 
   | Churchite-(Y) | 
  R050421 | 
  Y(PO4)·2H2O | 
  Marcus Origlieri  | 
  Vesuvius, Virginia, USA | 
  
           
   | 
   | 
   | Churchite-(Y) | 
  R060424 | 
  Y(PO4)·2H2O | 
  Michael Scott S100069 | 
  Indian Mountain, Cherokee County, Alabama, USA | 
  
           
   | 
   | 
   | Cianciulliite | 
  R150124 | 
  Mg2Mn2+Zn2(OH)10·2-4H2O | 
  Van King  | 
  Franklin Mine, Franklin, Sussex Co., New Jersey, USA | 
  
           
   | 
   | 
   | Cinnabar | 
  R050072 | 
  HgS | 
  Rock Currier  | 
  Gui Zhu, Hunan Province, China | 
  
           
   | 
   | 
   | Cinnabar | 
  R070532 | 
  HgS | 
  James Shigley  | 
  Charcas, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Claraite | 
  R110020 | 
  (Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14·7H2O | 
  Bob Jenkins  | 
  Sommerau District, Brixlegg - Rattenberg, Brixlegg - Schwaz area, Inn valley, North Tyrol, Tyrol, Austria | 
  
           
   | 
   | 
   | Claringbullite | 
  R090014 | 
  Cu2+4FCl(OH)6 | 
  Marcus Origlieri  | 
  Mina Ojuela, Mapimí, Durango, Mexico | 
  
           
   | 
   | 
   | Claringbullite | 
  R090016 | 
  Cu2+4FCl(OH)6 | 
  William W. Pinch  | 
  Copper Queen Mine, Bisbee, Arizona | 
  
           
   | 
   | 
   | Claudetite | 
  R050313 | 
  As2O3 | 
  University of Arizona Mineral Museum 16128 | 
  Jáchymov, Erzgebirge Region, Czech Republic | 
  
           
   | 
   | 
   | Clausthalite | 
  R070169 | 
  PbSe | 
  Michael Scott S103945 | 
  Colquechaca, Chayanta Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | Cleusonite | 
  R061019 | 
  Pb(U4+,U6+)Fe2+2(Ti,Fe2+,Fe3+)18(O,OH)38 | 
  Michael Scott S101386 | 
  Bella Tola, Alpe Roua, St-Luc, Val d'Annivers, Wallis | 
  
           
   | 
   | 
   | Cliffordite | 
  R070407 | 
  UTe4+3O9 | 
  Michael Scott S104745 | 
  Bambollita mine (Oriental mine), Moctezuma, Municipio de Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Clinoatacamite | 
  R061066 | 
  Cu2Cl(OH)3 | 
  Bob Jenkins  | 
  Esperanza mine, Diego de Almagro, Chile | 
  
           
   | 
   | 
   | Clinoatacamite | 
  R090062 | 
  Cu2Cl(OH)3 | 
  William W. Pinch  | 
  Copper Queen Mine, Bisbee, Arizona | 
  
           
   | 
   | 
   | Clinoatacamite | 
  R100198 | 
  Cu2Cl(OH)3 | 
  Bob Jenkins  | 
  La Vendida mine, Caracoles, Sierra Gorda District, Tocopilla Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Clinoatacamite | 
  R141083 | 
  Cu2Cl(OH)3 | 
  Marcus Origlieri  | 
  Lily mine, Ica Region, Peru | 
  
           
   | 
   | 
   | Clinobisvanite | 
  R070401 | 
  Bi(VO4) | 
  Michael Scott S104748 | 
  Linka mine (Garnetite mine), Spencer Hot Springs District, Lander County, Nevada, USA | 
  
           
   | 
   | 
   | Clinocervantite | 
  R070385 | 
  Sb3+Sb5+O4 | 
  Michael Scott S104750 | 
  Le Cetine di Cotorniano Mine (Le Cetine Mine; Cetine Mine; Rosia), Chiusdino, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Clinochalcomenite | 
  R110125 | 
  CuSe4+O3·2H2O | 
  Royal Ontario Museum  | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Clinochlore | 
  R060725 | 
  Mg5Al(AlSi3O10)(OH)8 | 
  Bob Jenkins  | 
  Crestmore Quarry, Riverside, California, USA | 
  
           
   | 
   | 
   | Clinochlore | 
  R061080 | 
  Mg5Al(AlSi3O10)(OH)8 | 
  Lloyd Twaites LT 1538 | 
  Callaghan Creek, Whistler, British Columbia, Canada | 
  
           
   | 
   | 
   | Clinochlore | 
  R150146 | 
  Mg5Al(AlSi3O10)(OH)8 | 
  Leor Goldberg  | 
  Kop Dağı, Erzurum, Turkey | 
  
           
   | 
   | 
   | Clinoclase | 
  R050659 | 
  Cu3(AsO4)(OH)3 | 
  University of Arizona Mineral Museum 7906 | 
  Carissa mine, Tintic District, Utah, USA | 
  
           
   | 
   | 
   | Clinoclase | 
  R070092 | 
  Cu3(AsO4)(OH)3 | 
  James Shigley  | 
  Majuba Hill, Antelope District, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Clinoenstatite | 
  X050038 | 
  Mg2Si2O6 | 
  G.R. Rossman 1654 | 
  Bonin Island, Japan | 
  
           
   | 
   | 
   | Clinoenstatite | 
  R070276 | 
  Mg2Si2O6 | 
  Juergen Konzett  | 
  Synthetic, at 15 GPa and 1600 C by Juergen Konzett | 
  
           
   | 
   | 
   | Clinofergusonite-(Ce) | 
  R070225 | 
  CeNbO4 | 
  Michael Scott S105092 | 
  Hongcheon, Kangwon-Do Province, Korea | 
  
           
   | 
   | 
   | Clinofergusonite-(Ce) | 
  R070300 | 
  CeNbO4 | 
  Michael Scott S105149 | 
  Amherst County, Virginia, USA | 
  
           
   | 
   | 
   | Clinofergusonite-(Ce) | 
  R080102 | 
  CeNbO4 | 
  Michael Scott S105149 | 
  Amherst County, Virginia, USA | 
  
           
   | 
   | 
   | Clinofergusonite-(Y) | 
  R070600 | 
  YNbO4 | 
  James Shigley  | 
  Arendal, Aust-Agder, Norway | 
  
           
   | 
   | 
   | Clinofergusonite-(Y) | 
  R080103 | 
  YNbO4 | 
  James Shigley  | 
  Arendal, Aust-Agder, Norway | 
  
           
   | 
   | 
   | Clinoferroholmquistite | 
  R110165 | 
  ◻Li2[Fe2+3Al2]Si8O22(OH,F)2 | 
  Donald V Doell  | 
  Quebec Lithium Corporation mine, La Corne, Abitibi RCM, Abitibi-Témiscamingue, Québec, Canada | 
  
           
   | 
   | 
   | Clinoferrosilite | 
  R141085 | 
  Fe2+2Si2O6 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Clinohedrite | 
  R050416 | 
  CaZn(SiO4)·H2O | 
  Marcus Origlieri  | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Clinohedrite | 
  R120105 | 
  CaZn(SiO4)·H2O | 
  Bob Jenkins  | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Clinohumite | 
  R040122 | 
  Mg9(SiO4)4F2 | 
  University of Arizona Mineral Museum 13620 | 
  Anzahamazonono,  Madagascar | 
  
           
   | 
   | 
   | Clinohumite | 
  R050183 | 
  Mg9(SiO4)4F2 | 
  Marcus Origlieri  | 
  Pein Pyit, Mogok, Burma | 
  
           
   | 
   | 
   | Clinohumite | 
  X050039 | 
  Mg9(SiO4)4F2 | 
  Caltech  | 
   | 
  
           
   | 
   | 
   | Clinohumite | 
  R060559 | 
  Mg9(SiO4)4F2 | 
  Gemological Institute of America 32060 | 
  Tadjikistan | 
  
           
   | 
   | 
   | Clinohumite | 
  R070561 | 
  Mg9(SiO4)4F2 | 
  www.multicolour.com  | 
  Unknown | 
  
           
   | 
   | 
   | Clinophosinaite | 
  R070202 | 
  Na3Ca(SiO3)(PO4) | 
  Michael Scott S100441 | 
  Tsentrainly mine, Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Clinoptilolite-Ca | 
  R060662 | 
  Ca3(Si30Al6)O72·20H2O | 
  Michael Scott S101212 | 
  Succor Creek, Malheur County, Oregon, USA | 
  
           
   | 
   | 
   | Clinoptilolite-Ca | 
  R061098 | 
  Ca3(Si30Al6)O72·20H2O | 
  Michael Scott S102070 | 
  Fish Creek Quarry, Clackamas River, Estacada, Clackamas County, Oregon, USA | 
  
           
   | 
   | 
   | Clinoptilolite-K | 
  R110201 | 
  K6(Si30Al6)O72·20H2O | 
  Donald Doell  | 
  Conejo Volcanics, Agoura, Santa Monica Mountains, Los Angeles County, California, USA | 
  
           
   | 
   | 
   | Clinoptilolite-Na | 
  R061099 | 
  Na6(Si30Al6)O72·20H2O | 
  Michael Scott S102073 | 
  Richardson Ranch, Madras, Jefferson County, Oregon, USA | 
  
           
   | 
   | 
   | Clinosafflorite | 
  R130389 | 
  CoAs2 | 
  Rock Currier  | 
  Ahrbar, Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Clinozoisite | 
  R040085 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 8562 | 
  Alamos, Sonora, Mexico | 
  
           
   | 
   | 
   | Clinozoisite | 
  R060284 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  Herb Obodda 054 | 
  near Zagi Mountain, Khaffor Dehri, North-West Frontier Province, Pakistan | 
  
           
   | 
   | 
   | Clintonite | 
  R070196 | 
  CaAlMg2(SiAl3O10)(OH)2 | 
  California Institute of Technology CIT-2538 | 
  Crestmore, Riverside County, California, USA | 
  
           
   | 
   | 
   | Clintonite | 
  R070197 | 
  CaAlMg2(SiAl3O10)(OH)2 | 
  California Institute of Technology CIT-5324 | 
  Crestmore Quarry, Riverside County, California, USA | 
  
           
   | 
   | 
   | Clintonite | 
  R070229 | 
  CaAlMg2(SiAl3O10)(OH)2 | 
  Michael Scott S102005 | 
  Amity, Warwick Township, Orange County, New York, USA | 
  
           
   | 
   | 
   | Coalingite | 
  R110196 | 
  Mg10Fe3+2(CO3)(OH)24·2H2O | 
  James Shigley  | 
  San Benito County, California (about 35 miles NW of Coalinga), USA | 
  
           
   | 
   | 
   | Coalingite | 
  R110197 | 
  Mg10Fe3+2(CO3)(OH)24·2H2O | 
  Donald Doell  | 
  Hunting Hill quarry, Rockville, Montgomery County, Maryland, USA | 
  
           
   | 
   | 
   | Cobaltarthurite | 
  R070224 | 
  CoFe3+2(AsO4)2(OH)2·4H2O | 
  Michael Scott S100456 | 
  Dolores prospect, Pastrana, Mazarrón-Aguilas, Murcia, Spain | 
  
           
   | 
   | 
   | Cobaltaustinite | 
  R050536 | 
  CaCo(AsO4)(OH) | 
  University of Arizona Mineral Museum 16265 | 
  Dome Rock, Mingary, South Australia, Australia | 
  
           
   | 
   | 
   | Cobaltite | 
  R060907 | 
  CoAsS | 
  Royal Ontario Museum M52498 | 
  Espanola, Ontario, Canada | 
  
           
   | 
   | 
   | Cobaltite | 
  R070372 | 
  CoAsS | 
  Royal Ontario Museum M11824 | 
  Hakansboda, Vastmanland, Sweden | 
  
           
   | 
   | 
   | Cobaltite | 
  R100119 | 
  CoAsS | 
  Robert Woodside  | 
  Deerhorn mine, Cobalt, Ontario, Canada | 
  
           
   | 
   | 
   | Cobaltlotharmeyerite | 
  R070400 | 
  CaCo2(AsO4)2·2H2O | 
  Michael Scott S102006 | 
  Roter Berg District, Schneeberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Cobaltomenite | 
  R070352 | 
  Co(Se4+O3)·2H2O | 
  Michael Scott S102060 | 
  Temple Mountain, San Rafael District (San Rafael Swell), Emery County, Utah, USA | 
  
           
   | 
   | 
   | Cobaltomenite | 
  R110040 | 
  Co(Se4+O3)·2H2O | 
  William W Pinch  | 
  Musonoi mine extension, Kolwezi, Katanga, Congo | 
  
           
   | 
   | 
   | Coconinoite | 
  R060952 | 
  Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2·20H2O | 
  Bob Jenkins  | 
  Jomac mine, White Canyon Mining District, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Coesite | 
  X050094 | 
  SiO2 | 
  G.R. Rossman 1603 | 
  Kimberly, South Africa | 
  
           
   | 
   | 
   | Coesite | 
  R070565 | 
  SiO2 | 
  Charles Prewitt Run #4 | 
  Synthetic, P = 45 kbar, T = 650 C | 
  
           
   | 
   | 
   | Coffinite | 
  R070402 | 
  U(SiO4)·nH2O | 
  Michael Scott S102007 | 
  Happy Jack mine (Blue Dike mine), Copper Point, White Canyon, White Canyon District, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Cohenite | 
  R100076 | 
  CFe3 | 
  Michael Scott S101369 | 
  Asuk, Disko, West Greenland, Greenland | 
  
           
   | 
   | 
   | Colchicine | 
  D120005 | 
   | 
  David Blake  | 
  Synthetic | 
  
           
   | 
   | 
   | Colchicine | 
  D120025 | 
   | 
  David Blake  | 
  Synthetic; pill is from Global Pharma Healthcare Pvt. Ltd., India | 
  
           
   | 
   | 
   | Colemanite | 
  R050102 | 
  CaB3O4(OH)3·H2O | 
  Rock Currier  | 
  Kramer deposit, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Colemanite | 
  X050040 | 
  CaB3O4(OH)3·H2O | 
  Caltech  | 
  Death Valley, California, USA | 
  
           
   | 
   | 
   | Colemanite | 
  R050331 | 
  CaB3O4(OH)3·H2O | 
  California Institute of Technology W-20148 | 
  Thompson mine, Death Valley, Inyo County, California, USA | 
  
           
   | 
   | 
   | Colinowensite | 
  R150109 | 
  BaCuSi2O6 | 
  Yan Chen and Shouhua Feng  | 
  Synthetic | 
  
           
   | 
   | 
   | Collinsite | 
  R060140 | 
  Ca2Mg(PO4)2·2H2O | 
  Mark Mauthner  | 
  Big Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Collinsite | 
  R120022 | 
  Ca2Mg(PO4)2·2H2O | 
  Dr. Jürgen Wachsmuth  | 
  Prinz von Hessen mine, Messel, Darmstadt, Hesse, Germany | 
  
           
   | 
   | 
   | Collinsite | 
  R140626 | 
  Ca2Mg(PO4)2·2H2O | 
  Rock Currier  | 
  Near Milgun Station, Meekatharra Shire, Western Australia, Australia | 
  
           
   | 
   | 
   | Coloradoite | 
  R070326 | 
  HgTe | 
  Michael Scott S103193 | 
  Herald Mine, Sugarloaf, Boulder County, Colorado, USA | 
  
           
   | 
   | 
   | Colquiriite | 
  R070417 | 
  CaLiAlF6 | 
  Michael Scott S102008 | 
  Serra Branca pegmatite, Pedra Lavrada, Picuí, Paraíba; Northeast, Brazil | 
  
           
   | 
   | 
   | Columbite-(Fe) | 
  R050348 | 
  Fe2+Nb2O6 | 
  California Institute of Technology  | 
  Lord Hill mine, Stoneham, Oxford County, Maine, USA | 
  
           
   | 
   | 
   | Columbite-(Fe) | 
  R060001 | 
  Fe2+Nb2O6 | 
  Eric Van Valkenburg  | 
  Gypsy mine, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Columbite-(Fe) | 
  R070161 | 
  Fe2+Nb2O6 | 
  James Shigley  | 
  Tveit mine, Iveland, Setesdal Valley, Aust-Agder, Norway | 
  
           
   | 
   | 
   | Columbite-(Mn) | 
  R040083 | 
  Mn2+Nb2O6 | 
  University of Arizona Mineral Museum 10964 | 
  Mina Miramica, Santa Cruz, Bolivia | 
  
           
   | 
   | 
   | Columbite-(Mn) | 
  R050359 | 
  Mn2+Nb2O6 | 
  University of Arizona Mineral Museum 5452 | 
  Black Hills, South Dakota, USA | 
  
           
   | 
   | 
   | Colusite | 
  R070568 | 
  Cu13VAs3S16 | 
  James Shigley  | 
  East Colusa mine, Butte, Silver Bow County, Montana, USA | 
  
           
   | 
   | 
   | Comancheite | 
  R060734 | 
  Hg2+55N3-24(NH2,OH)4(Cl,Br)34 | 
  Bob Jenkins  | 
  Terlinguia, Texas, USA | 
  
           
   | 
   | 
   | Congolite | 
  R070149 | 
  Fe2+3B7O13Cl | 
  James Shigley  | 
  Lower Saxony, Germany | 
  
           
   | 
   | 
   | Congolite | 
  R110153 | 
  Fe2+3B7O13Cl | 
  Donald M Doell and Brian Roulston  | 
  Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Conichalcite | 
  R040167 | 
  CaCu(AsO4)(OH) | 
  University of Arizona Mineral Museum 750 | 
  Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Conichalcite | 
  R050028 | 
  CaCu(AsO4)(OH) | 
  Eugene Schlepp  | 
  Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Conichalcite | 
  R050506 | 
  CaCu(AsO4)(OH) | 
  University of Arizona Mineral Museum 5665 | 
  Higgins mine, Bisbee, Arizona, USA | 
  
           
   | 
   | 
   | Conichalcite | 
  R070447 | 
  CaCu(AsO4)(OH) | 
  Bob Jenkins  | 
  Copper Creek District, Mammoth, Arizona, USA | 
  
           
   | 
   | 
   | Conichalcite | 
  R070430 | 
  CaCu(AsO4)(OH) | 
  Bob Jenkins  | 
  Maria Catalina mine, Pampa Larga Mining District, Tierra Amarilla, Chile | 
  
           
   | 
   | 
   | Conichalcite | 
  R120017 | 
  CaCu(AsO4)(OH) | 
  Ron Gibbs  | 
  New Cornelia mine, Ajo, Arizona, USA | 
  
           
   | 
   | 
   | Connellite | 
  X060006 | 
  Cu36(SO4)(OH)62Cl8·6H2O | 
  University of Arizona Mineral Museum 1166 | 
  Czar mine, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Connellite | 
  R060503 | 
  Cu36(SO4)(OH)62Cl8·6H2O | 
  University of Arizona Mineral Museum 1188 | 
  Shattuck mine, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Cookeite | 
  R061103 | 
  (Al,Li)3Al2(Si,Al)4O10(OH)8 | 
  Michael Scott S102013 | 
  Green mine, Saline County, Arkansas, USA | 
  
           
   | 
   | 
   | Copiapite | 
  R060821 | 
  Fe2+Fe3+4(SO4)6(OH)2·20H2O | 
  Bob Jenkins  | 
  Alcaparrosa mine, Tierra Amarilla, Chile | 
  
           
   | 
   | 
   | Copper | 
  R061078 | 
  Cu | 
  Lloyd Twaites LT55 | 
  Afton mine, Kamloops, British Columbia, Canada | 
  
           
   | 
   | 
   | Copper | 
  R070329 | 
  Cu | 
  James Shigley  | 
  Bad Ems, Lahn Valley, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Coquimbite | 
  R060638 | 
  AlFe3(SO4)6(H2O)12·6H2O | 
  University of Arizona Mineral Museum 15636 | 
  Dexter no. 7 mine, Calf Mesa, San Rafael Swell, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Coquimbite | 
  R070666 | 
  AlFe3(SO4)6(H2O)12·6H2O | 
  Michael Scott S105523 | 
  United Verde Mine, Jerome, Verde District, Black Hills (Black Hill Range), Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Coquimbite | 
  R110210 | 
  AlFe3(SO4)6(H2O)12·6H2O | 
  Gunnar Farber  | 
  Mina Alcaparrosa, Cerritos Bayos, Calama, Atacama, II Region, Chile | 
  
           
   | 
   | 
   | Corderoite | 
  R130560 | 
  Hg3S2Cl2 | 
  Marcus Origlieri  | 
  Oriental mine, El Hembrar, Chovar, Castellon, Valencian, Spain | 
  
           
   | 
   | 
   | Corderoite | 
  R190022 | 
  Hg3S2Cl2 | 
  Michael Cox  | 
  McDermitt mine, Humboldt Co., Nevada, USA | 
  
           
   | 
   | 
   | Cordierite | 
  R040081 | 
  Mg2Al4Si5O18 | 
  University of Arizona Mineral Museum 15667 | 
  Laramie Range, Wyoming, USA | 
  
           
   | 
   | 
   | Cordierite | 
  R040082 | 
  Mg2Al4Si5O18 | 
  University of Arizona Mineral Museum 4260 | 
  Madagascar | 
  
           
   | 
   | 
   | Cordierite | 
  R040084 | 
  Mg2Al4Si5O18 | 
  University of Arizona Mineral Museum 4261 | 
  Norway | 
  
           
   | 
   | 
   | Cordierite | 
  X050041 | 
  Mg2Al4Si5O18 | 
  RD Shannon 56163- 90 | 
   | 
  
           
   | 
   | 
   | Cordierite | 
  R100141 | 
  Mg2Al4Si5O18 | 
  William W. Pinch  | 
  Madagascar | 
  
           
   | 
   | 
   | Cordierite | 
  R100150 | 
  Mg2Al4Si5O18 | 
  William W. Pinch  | 
  India | 
  
           
   | 
   | 
   | Cordylite-(Ce) | 
  R110181 | 
  (Na,Ca,◻)BaCe2(CO3)4(F,O) | 
  Donald Doell  | 
  Demix Quarry, Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Corkite | 
  R050522 | 
  PbFe3+3(SO4)(PO4)(OH)6 | 
  University of Arizona Mineral Museum 2490 | 
  near Dernbach, Nassau, Germany | 
  
           
   | 
   | 
   | Corkite | 
  R070403 | 
  PbFe3+3(SO4)(PO4)(OH)6 | 
  Michael Scott S101909 | 
  Waldschacht mine (shaft 26), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Corkite | 
  R070491 | 
  PbFe3+3(SO4)(PO4)(OH)6 | 
  Bob Jenkins  | 
  Iron Crag, Roughton Gill, Caldbeck Fells, Cumbria (Cumberland), England, United Kingdom | 
  
           
   | 
   | 
   | Cornetite | 
  R040163 | 
  Cu3(PO4)(OH)3 | 
  University of Arizona Mineral Museum 13901 | 
  Kalabi, Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Cornetite | 
  R050151 | 
  Cu3(PO4)(OH)3 | 
  Jim McGlasson  | 
  Manto Russo, El Salado, Chile | 
  
           
   | 
   | 
   | Cornwallite | 
  R050469 | 
  Cu5(AsO4)2(OH)4 | 
  University of Arizona Mineral Museum 7906 | 
  Carissa mine, Tintic District, Utah, USA | 
  
           
   | 
   | 
   | Cornwallite | 
  R110146 | 
  Cu5(AsO4)2(OH)4 | 
  The University of Arizona Mineral Museum 17398 | 
  Arkaroola Station, flinders Ranges, South Australia, Australia | 
  
           
   | 
   | 
   | Coronadite | 
  R060258 | 
  Pb(Mn4+6Mn3+2)O16 | 
  Michael Scott S100062 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Coronadite | 
  R070320 | 
  Pb(Mn4+6Mn3+2)O16 | 
  James Shigley  | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Coronadite | 
  R090056 | 
  Pb(Mn4+6Mn3+2)O16 | 
  Bob Downs  | 
  Taouz, Er Rachidia Province, Meknès-Tafilalet Region, Morocco | 
  
           
   | 
   | 
   | Correianevesite | 
  R060701 | 
  Fe2+Mn2+2(PO4)2·3H2O | 
  Bob Jenkins  | 
  Linopolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Correianevesite | 
  R090069 | 
  Fe2+Mn2+2(PO4)2·3H2O | 
  Royal Ontario Museum M54960 | 
  Cigana mine, Galiléia, Minas Gerais  Brazil | 
  
           
   | 
   | 
   | Correianevesite | 
  R130692 | 
  Fe2+Mn2+2(PO4)2·3H2O | 
  Rob Lavinsky  | 
  Hagendorf South Pegmatite, Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Corundum | 
  R040096 | 
  Al2O3 | 
  University of Arizona Mineral Museum 11567 | 
  Sri Lanka | 
  
           
   | 
   | 
   | Corundum | 
  X050042 | 
  Al2O3 | 
  G.R. Rossman 1020b | 
  Australia | 
  
           
   | 
   | 
   | Corundum | 
  X050043 | 
  Al2O3 | 
  G.R. Rossman 1333 | 
  Malacachita, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Corundum | 
  X050044 | 
  Al2O3 | 
  G.R. Rossman 1054 | 
  Queensland, Australia | 
  
           
   | 
   | 
   | Corundum | 
  X050045 | 
  Al2O3 | 
  G.R. Rossman 1380b | 
  Queenland, Australia | 
  
           
   | 
   | 
   | Corundum | 
  R060020 | 
  Al2O3 | 
  American Museum of Natural History 98807 | 
  Yogo Gulch, Montana, USA | 
  
           
   | 
   | 
   | Corundum | 
  X080003 | 
  Al2O3 | 
  Gemological Institute of America 28544 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  X080005 | 
  Al2O3 | 
  Gemological Institute of America 19519 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  X080006 | 
  Al2O3 | 
  Gemological Institute of America 24224 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  X080007 | 
  Al2O3 | 
  Gemological Institute of America 30078 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R100131 | 
  Al2O3 | 
  William W. Pinch  | 
  Madagascar | 
  
           
   | 
   | 
   | Corundum | 
  R100142 | 
  Al2O3 | 
  William W. Pinch  | 
  Nepal | 
  
           
   | 
   | 
   | Corundum | 
  R110096 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-1 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110097 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-2 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110098 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-3 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110099 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-4 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110110 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-15 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110111 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-16 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110116 | 
  Al2O3 | 
  Gemological Institute of America 10-12-2010-21 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110117 | 
  Al2O3 | 
  Gemological Institute of America 10-22-2010-22 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  R110119 | 
  Al2O3 | 
  Gemological Institute of America 10-22-2010-24 | 
  Synthetic | 
  
           
   | 
   | 
   | Corundum | 
  P000033 | 
  Al2O3 | 
  ScottLab P000033 | 
  Virtual | 
  
           
   | 
   | 
   | Corvusite | 
  R060265 | 
  (Na,Ca,K)1-x(V5+,V4+,Fe2+)8O20·4H2O | 
  Michael Scott S100247 | 
  Monument no. 2 mine, Monument Valley, Apache County, Arizona, USA | 
  
           
   | 
   | 
   | Cosalite | 
  R060229 | 
  Pb2Bi2S5 | 
  Michael Scott S100150 | 
  Amax mine, Kitsault, near Alice Arm, British Columbia, Canada | 
  
           
   | 
   | 
   | Cosalite | 
  R060625 | 
  Pb2Bi2S5 | 
  Michael Scott S100857 | 
  Wells, British Columbia, Canada | 
  
           
   | 
   | 
   | Cosalite | 
  R060988 | 
  Pb2Bi2S5 | 
  Bob Jenkins  | 
  San Nicolas mine, Badajoz Provence, Spain | 
  
           
   | 
   | 
   | Cotunnite | 
  R060655 | 
  PbCl2 | 
  Michael Scott S101165 | 
  Mount Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy | 
  
           
   | 
   | 
   | Covellite | 
  R060129 | 
  CuS | 
  University of Arizona Mineral Museum 5418 | 
  Butte, Montana, USA | 
  
           
   | 
   | 
   | Covellite | 
  R060143 | 
  CuS | 
  Marcus Origlieri  | 
  Butte, Montana, USA | 
  
           
   | 
   | 
   | Covellite | 
  R060306 | 
  CuS | 
  Michael Scott S100126 | 
  3800' level, Leonard mine, Butte, Silver Bow County, Montana, USA | 
  
           
   | 
   | 
   | Cowlesite | 
  R060627 | 
  Ca(Al2Si3)O10·5-6H2O | 
  Michael Scott S100860 | 
  Goble, Colombia County, Oregon, USA | 
  
           
   | 
   | 
   | Coyoteite | 
  R070143 | 
  NaFe3S5·2H2O | 
  Michael Scott S100521 | 
  Coyote Peak, Orick, Humboldt County, California, USA | 
  
           
   | 
   | 
   | Crandallite | 
  R140429 | 
  CaAl3(PO4)(PO3OH)(OH)6 | 
  Ron Gibbs  | 
  Savannah Pit, Tyrone mine, Grant County, New Mexico, USA | 
  
           
   | 
   | 
   | Creaseyite | 
  R130418 | 
  Cu2Pb2Fe3+2Si5O17·6H2O | 
  Bob Jenkins  | 
  Navojoa, Municipio de Navojoa, Sonora, Mexico | 
  
           
   | 
   | 
   | Creaseyite | 
  R140557 | 
  Cu2Pb2Fe3+2Si5O17·6H2O | 
  Ron Gibbs  | 
  Evening Star mine, Tiger Wash, Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Crednerite | 
  R070404 | 
  CuMnO2 | 
  Michael Scott S102157 | 
  Merehead, Mendip Hills, Somerset, England, United Kingdom | 
  
           
   | 
   | 
   | Creedite | 
  R050141 | 
  Ca3Al2(SO4)(OH)2F8·2H2O | 
  Dave Bunk Minerals  | 
  Mina de Navidad, Rodeo, Durango, Mexico | 
  
           
   | 
   | 
   | Crichtonite | 
  R060314 | 
  Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 | 
  Michael Scott S100254 | 
  Fazenda Guariba, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Crichtonite | 
  R090006 | 
  Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 | 
  Luiz Menezes  | 
  Presidente Kubitschek, Minas Gerias, Brazil | 
  
           
   | 
   | 
   | Cristobalite | 
  X050046 | 
  SiO2 | 
  G.R. Rossman 1350 | 
   | 
  
           
   | 
   | 
   | Cristobalite | 
  X050047 | 
  SiO2 | 
  CIT 8520 | 
  Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Cristobalite | 
  X050048 | 
  SiO2 | 
  CIT 9208 | 
  Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Cristobalite | 
  X050049 | 
  SiO2 | 
  Caltech  | 
  Utah, USA | 
  
           
   | 
   | 
   | Cristobalite | 
  R060648 | 
  SiO2 | 
  Gemological Institute of America 29236 | 
  Idaho, USA | 
  
           
   | 
   | 
   | Cristobalite | 
  R061064 | 
  SiO2 | 
  Harvard Mineralogical Museum 97849 | 
  Ellora Caves, India | 
  
           
   | 
   | 
   | Cristobalite | 
  R061107 | 
  SiO2 | 
  Michael Scott S101270 | 
  Vechec, Slovakia | 
  
           
   | 
   | 
   | Crocoite | 
  R040053 | 
  Pb(CrO4) | 
  Bob Downs  | 
  Dundas, Tasmania | 
  
           
   | 
   | 
   | Crocoite | 
  R050044 | 
  Pb(CrO4) | 
  Eugene Schlepp  | 
  Red Ledge mine, Dundas, Tasmania | 
  
           
   | 
   | 
   | Crocoite | 
  R160016 | 
  Pb(CrO4) | 
  Marcus Origlieri  | 
  Beresovsk, Ural Mountains, Russia | 
  
           
   | 
   | 
   | Cronstedtite | 
  R061026 | 
  (Fe2+,Fe3+)3(Si,Fe3+)2O5(OH)4 | 
  Michael Scott S101349 | 
  Kisbanya, Hungary | 
  
           
   | 
   | 
   | Crookesite | 
  R061025 | 
  Cu7TlSe4 | 
  Michael Scott S101468 | 
  Skrikerum mine, Ostergotland, Sweden | 
  
           
   | 
   | 
   | Cryolite | 
  R050287 | 
  Na2NaAlF6 | 
  Marcus Origlieri  | 
  Ivigtut, Greenland | 
  
           
   | 
   | 
   | Cryolite | 
  R120026 | 
  Na2NaAlF6 | 
  Donald Doell  | 
  Francon quarry, Montréal, Québec, Canada | 
  
           
   | 
   | 
   | Cryolite | 
  R120027 | 
  Na2NaAlF6 | 
  Donald Doell  | 
  Francon quarry, Montréal, Québec, Canada | 
  
           
   | 
   | 
   | Cryolithionite | 
  R080051 | 
  Na3Al2(LiF4)3 | 
  Michael Scott S102718 | 
  Zapot mine, Zapot amazonite-topaz-zinnwaldite pegmatite, Gillis Range, Mineral County, Nevada, USA | 
  
           
   | 
   | 
   | Cubanite | 
  R061068 | 
  CuFe2S3 | 
  Lloyd Twaites LT1378 | 
  Henderson #2 mine, Chibougamau, Quebec, Canada | 
  
           
   | 
   | 
   | Cubic zirconia | 
  R040142 | 
   | 
  Bob Downs  | 
  synthetic | 
  
           
   | 
   | 
   | Cubic zirconia | 
  X080012 | 
   | 
  Gemological Institute of America 11874 | 
  Synthetic | 
  
           
   | 
   | 
   | Cubic zirconia | 
  R110112 | 
   | 
  Gemological Institute of America 10-12-2010-17 | 
  Synthetic | 
  
           
   | 
   | 
   | Cumengeite | 
  R060079 | 
  Pb21Cu20Cl42(OH)40·6H2O | 
  Marcus Origlieri  | 
  Amelia mine, Santa Rosalia, Baja California, Mexico | 
  
           
   | 
   | 
   | Cuprite | 
  R050374 | 
  Cu2O | 
  Eugene Schlepp  | 
  unknown | 
  
           
   | 
   | 
   | Cuprite | 
  R050384 | 
  Cu2O | 
  University of Arizona Mineral Museum 9678 | 
  Lavender Pit, Bisbee, Warren District, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Cuprite | 
  R140763 | 
  Cu2O | 
  Marcus Origlieri UAMM19820 | 
  Milpillas mine, Municipio de Santa Cruz, Sonora, Mexico | 
  
           
   | 
   | 
   | Cuproiridsite | 
  R070035 | 
  Cu(Ir3+Ir4+)S4 | 
  Michael Scott S105084 | 
  Miass River, Urals, Russia | 
  
           
   | 
   | 
   | Cuprosklodowskite | 
  R060570 | 
  Cu(UO2)2(SiO3OH)2·6H2O | 
  Michael Scott S100303 | 
  Musonoi Extension mine, near Kolwezi, Shaba Province, Zaire | 
  
           
   | 
   | 
   | Cuprostibite | 
  R060838 | 
  Cu2(Sb,Tl) | 
  Michael Scott S100912 | 
  Mount Nakalak, Ilimaussaq, Greenland | 
  
           
   | 
   | 
   | Curienite | 
  R050548 | 
  Pb(UO2)2(VO4)2·5H2O | 
  University of Arizona Mineral Museum 13480 | 
  Mounana mine, Franceville, Haut-Ogooué, Gabon | 
  
           
   | 
   | 
   | Curite | 
  R060728 | 
  Pb3+x[(UO2)4O4+x(OH)3-x]2·2H2O | 
  Bob Jenkins  | 
  Swambo, Katanga, Zaire | 
  
           
   | 
   | 
   | Curite | 
  R070328 | 
  Pb3+x[(UO2)4O4+x(OH)3-x]2·2H2O | 
  James Shigley  | 
  Kasolo mine, Shinkolobwe, Shaba Zaire | 
  
           
   | 
   | 
   | Curite | 
  R130657 | 
  Pb3+x[(UO2)4O4+x(OH)3-x]2·2H2O | 
  Benjamin N. Schumer  | 
  Musonoi mine, Kolwezi, Kolwezi District, Katanga Copper Crescent, Katanga, Democratic Republic of Congo | 
  
           
   | 
   | 
   | Cuspidine | 
  R060049 | 
  Ca8(Si2O7)2F4 | 
  University of Arizona Mineral Museum 2225 | 
  Ariccia, Rome, Italy | 
  
           
   | 
   | 
   | Cuspidine | 
  R130002 | 
  Ca8(Si2O7)2F4 | 
  Robert Lavinsky  | 
  Huanggang(?), Inner Mongolia, China | 
  
           
   | 
   | 
   | Cuspidine | 
  R140776 | 
  Ca8(Si2O7)2F4 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | CuZnCl(OH)3 | 
  R140401 | 
   | 
  Danielle Sotomayor and Keith Wentz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Cuzticite | 
  C130838 | 
  Fe3+2Te6+O6·3H2O | 
  Rock Currier  | 
  Moctezuma mine, Moctezuma, Municipio de Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Cyanochroite | 
  R061035 | 
  K2Cu(SO4)2·6H2O | 
  Michael Scott S100954 | 
  Tolbachik Volcano, Main Fracture, N. Breakthrough, Kamchatka, Russia | 
  
           
   | 
   | 
   | Cyanotrichite | 
  R070405 | 
  Cu4Al2(SO4)(OH)12(H2O)2 | 
  Michael Scott S103915 | 
  Springbok mine, Okiep Copper District, Namaqualand, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Cyanotrichite | 
  R070500 | 
  Cu4Al2(SO4)(OH)12(H2O)2 | 
  James Shigley  | 
  Vieja mine, Portrerillos, Chanaral Province, Atacama Region, Chile | 
  
           
   | 
   | 
   | Cylindrite | 
  R050175 | 
  FePb3Sn4Sb2S14 | 
  Marcus Origlieri  | 
  Poopó Province, Oruro Department, Bolivia | 
  
           
   | 
   | 
   | Cylindrite | 
  R050329 | 
  FePb3Sn4Sb2S14 | 
  Lloyd Twaites  | 
  Poopó Province, Oruro Department, Bolivia | 
  
           
   | 
   | 
   | Cymrite | 
  R080032 | 
  Ba(Si,Al)4(O,OH)8·H2O | 
  Michael Scott S101267 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Cyrilovite | 
  R060504 | 
  NaFe3+3(PO4)2(OH)4·2H2O | 
  Michael Scott S100184 | 
  Gunheath pit, St. Austell, Cornwall, England | 
  
           
   | 
   | 
   | Dachiardite-Ca | 
  R061097 | 
  Ca2(Si20Al4)O48·13H2O | 
  Michael Scott S102002 | 
  Cape Lookout Quarry, Tillamook County, Oregon | 
  
           
   | 
   | 
   | Dachiardite-Ca | 
  R061125 | 
  Ca2(Si20Al4)O48·13H2O | 
  Michael Scott S102165 | 
  San Piero in Campo, Isle of Elba, Livorno, Toscana, Italy | 
  
           
   | 
   | 
   | Dachiardite-Na | 
  R061116 | 
  Na4(Si20Al4)O48·13H2O | 
  Michael Scott S101988 | 
  Alpe di Siusi, Bolzano, Trentino-Alto Adige, Italy | 
  
           
   | 
   | 
   | Dadsonite | 
  R060246 | 
  Pb23Sb25S60Cl | 
  William W. Pinch  | 
  St. Pons, Barconlette, Haute Alpes, France | 
  
           
   | 
   | 
   | Dalyite | 
  R070415 | 
  K2ZrSi6O15 | 
  Michael Scott S102133 | 
  Murunskyi Massif, Chara River (Charo River), Davan, Torgo River Basin, Aldan Shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Danalite | 
  R060057 | 
  Be3Fe2+4(SiO4)3S | 
  University of Arizona Mineral Museum 14030 | 
  Iron Mountain, Winston, New Mexico, USA | 
  
           
   | 
   | 
   | Danburite | 
  R040013 | 
  CaB2Si2O8 | 
  Marcus Origlieri  | 
  Charcas, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Danburite | 
  X050050 | 
  CaB2Si2O8 | 
  RD Shannon 49022- 44 | 
  Charcas, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Danburite | 
  R050602 | 
  CaB2Si2O8 | 
  Bill Larson  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Danielsite | 
  R070419 | 
  (Cu,Ag)14HgS8 | 
  Michael Scott S102001 | 
  Coppin Pool, Western Australia, Australia | 
  
           
   | 
   | 
   | Datolite | 
  R050033 | 
  CaB(SiO4)(OH) | 
  University of Arizona Mineral Museum 4509 | 
  Westfield, Massachusetts, USA | 
  
           
   | 
   | 
   | Datolite | 
  R050136 | 
  CaB(SiO4)(OH) | 
  Dave Bunk Minerals  | 
  Charcas, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Datolite | 
  X050051 | 
  CaB(SiO4)(OH) | 
  RD Shannon 49022- 46 | 
  Westfield, Massachusetts, USA | 
  
           
   | 
   | 
   | Davidite-(Ce) | 
  R120009 | 
  Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | 
  Marcus Origlieri  | 
  Mount Kaskasnyunchorr, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Davidite-(La) | 
  R070698 | 
  La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | 
  Michael Scott S101999 | 
  Pandora prospect, Covered Wells, Quijotoa District, Quijotoa Mts, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Davidite-(La) | 
  R070697 | 
  La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | 
  Michael Scott S103826 | 
  Pandora prospect, Covered Wells, Quijotoa District, Quijotoa Mts, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Davidite-(La) | 
  R110047 | 
  La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 | 
  Donald M Doell  | 
  Billeroo Davidite Prospect, Plumbago Station, Olary Province, South Australia, Australia | 
  
           
   | 
   | 
   | Davidlloydite | 
  R130015 | 
  Zn3(AsO4)2·4H2O | 
  Frank C. Hawthorne   | 
  Tsumeb mine, Otjikoto region, Namibia | 
  
           
   | 
   | 
   | Davisite | 
  R130013 | 
  CaScAlSiO6 | 
  Chi Ma  | 
  Allende meteorite, Pueblito de Allende, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Davyne | 
  R060305 | 
  [(Na,K)6(SO4)0.5Cl][Ca2Cl2][(Si6Al6O24)] | 
  Michael Scott S100269 | 
  Bellerberg, Ettringen, Laacher See, Germany | 
  
           
   | 
   | 
   | Davyne | 
  R140771 | 
  [(Na,K)6(SO4)0.5Cl][Ca2Cl2][(Si6Al6O24)] | 
  Ch. and H. Schäfer  | 
  Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy | 
  
           
   | 
   | 
   | Dawsonite | 
  R050645 | 
  NaAl(CO3)(OH)2 | 
  Marcus Origlieri  | 
  Cerro Sapo, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Dawsonite | 
  R050641 | 
  NaAl(CO3)(OH)2 | 
  University of Arizona Mineral Museum 11410 | 
  Francon Quarry, Montréal, Québec, Canada | 
  
           
   | 
   | 
   | Dawsonite | 
  R120093 | 
  NaAl(CO3)(OH)2 | 
  Don Doell  | 
  Francon Quarry, Montréal, Québec, Canada | 
  
           
   | 
   | 
   | Decrespignyite-(Y) | 
  R060302 | 
  Y4Cu(CO3)4Cl(OH)5·2H2O | 
  Michael Scott S100067 | 
  Paratoo mine, Paratoo, South Australia, Australia | 
  
           
   | 
   | 
   | Deerite | 
  R070393 | 
  Fe2+6Fe3+3(Si6O17)O3(OH)5 | 
  Michael Scott S101050 | 
  Laytonville quarry, Laytonville, Mendocino County, California, USA | 
  
           
   | 
   | 
   | Defernite | 
  R060619 | 
  Ca6(CO3)1.58(Si2O7)0.21(OH)7[Cl0.50(OH)0.08(H2O)0.42] | 
  Michael Scott S100828 | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Delafossite | 
  R050403 | 
  Cu1+Fe3+O2 | 
  Marcus Origlieri  | 
  Cole Shaft, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Delhayelite | 
  R060816 | 
  K7Na3Ca5Al2Si14O38F4Cl2 | 
  Bob Jenkins  | 
  Chibiny, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Delhayelite | 
  R070096 | 
  K7Na3Ca5Al2Si14O38F4Cl2 | 
  Michael Scott S105088 | 
  Yukspor Mountain, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Demesmaekerite | 
  R080130 | 
  Pb2Cu5(UO2)2(Se4+O3)6(OH)6·2H2O | 
  William W. Pinch  | 
  Musonoi mine, Kolwezi, Katanga, Congo | 
  
           
   | 
   | 
   | Denisovite | 
  R120067 | 
  KCa2Si3O8F | 
  Donald Doell  | 
  Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Denningite | 
  R061023 | 
  CaMn2+Te4+4O10 | 
  Michael Scott S100389 | 
  Bambolla mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Derbylite | 
  R070382 | 
  Fe3+4Ti4+3Sb3+O13(OH) | 
  Michael Scott S103832 | 
  Buca della Vena Mine,  Stazzema,  Apuan Alps,  Lucca Province,  Tuscany,  Italy | 
  
           
   | 
   | 
   | Derriksite | 
  R100223 | 
  Cu4(UO2)(Se4+O3)2(OH)6 | 
  William W. Pinch  | 
  Musonoi mine, Kolwezi, Katanga, Congo | 
  
           
   | 
   | 
   | Desautelsite | 
  R060303 | 
  Mg6Mn3+2(CO3)(OH)16·4H2O | 
  Michael Scott S100079 | 
  1.5 miles west of San Benito mountain, southern San Benito County, California, USA | 
  
           
   | 
   | 
   | Descloizite | 
  R050037 | 
  PbZn(VO4)(OH) | 
  Eugene Schlepp  | 
  Berg Aukas mine, Namibia | 
  
           
   | 
   | 
   | Descloizite | 
  R050509 | 
  PbZn(VO4)(OH) | 
  University of Arizona Mineral Museum 7892 | 
  Grootfontein district, Namibia | 
  
           
   | 
   | 
   | Descloizite | 
  R120097 | 
  PbZn(VO4)(OH) | 
  Bob Downs and Hexiong Yang  | 
  Collins Vein, Mammoth mine, Tiger, Arizona | 
  
           
   | 
   | 
   | Despujolsite | 
  R100208 | 
  Ca3Mn4+(SO4)2(OH)6·3H2O | 
  Marcus Origlieri  | 
  N'Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Destinezite | 
  R050631 | 
  Fe3+2(PO4)(SO4)(OH)·6H2O | 
  University of Arizona Mineral Museum 12690 | 
  Patagonia Mountains, Arizona, USA | 
  
           
   | 
   | 
   | Devilline | 
  R060126 | 
  CaCu4(SO4)2(OH)6·3H2O | 
  University of Arizona Mineral Museum 300 | 
  Herrengrund, Hungary | 
  
           
   | 
   | 
   | Devitoite | 
  R130083 | 
  Ba6Fe2+7Fe3+2(Si4O12)2(PO4)2(CO3)O2(OH)4 | 
  George R. Rossman  | 
  Big Creek in eastern Fresno County, California, USA | 
  
           
   | 
   | 
   | Dewindtite | 
  R050608 | 
  H2Pb3(UO2)6O4(PO4)4·12H2O | 
  University of Arizona Mineral Museum  | 
  La Faye pres Grury, Saone et Loire, France | 
  
           
   | 
   | 
   | Diaboleite | 
  R050270 | 
  CuPb2Cl2(OH)4 | 
  Marcus Origlieri  | 
  Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Diaboleite | 
  R050372 | 
  CuPb2Cl2(OH)4 | 
  Eugene Schlepp  | 
  Collins Vein, Mammoth mine, Tiger, Arizona | 
  
           
   | 
   | 
   | Diadochite | 
  R120021 | 
  Fe3+2(PO4)(SO4)(OH)·6H2O | 
  Dr. Jürgen Wachsmuth  | 
  Vysočany, Prague, Czech Republic | 
  
           
   | 
   | 
   | Diamond | 
  R050204 | 
  C | 
  Eric Van Valkenburg  | 
  Unknown | 
  
           
   | 
   | 
   | Diamond | 
  R050205 | 
  C | 
  Eric Van Valkenburg  | 
  Unknown | 
  
           
   | 
   | 
   | Diamond | 
  R050206 | 
  C | 
  Eric Van Valkenburg  | 
  Unknown | 
  
           
   | 
   | 
   | Diamond | 
  R050207 | 
  C | 
  Eric Van Valkenburg  | 
  Unknown | 
  
           
   | 
   | 
   | Diamond | 
  X050052 | 
  C | 
  Caltech  | 
  Plumas County, California, USA | 
  
           
   | 
   | 
   | Diamond | 
  X050053 | 
  C | 
  G.R. Rossman 1989 | 
  Synthetic, General Electric | 
  
           
   | 
   | 
   | Diamond | 
  X050054 | 
  C | 
  G.R. Rossman 1838 | 
  Synthetic, General Electric | 
  
           
   | 
   | 
   | Diamond | 
  X070001 | 
  C | 
  Eric Van Valkenburg  | 
  Synthetic, DeBeers Element6 | 
  
           
   | 
   | 
   | Diamond | 
  X080011 | 
  C | 
  Gemological Institute of America 28754 | 
  Synthetic | 
  
           
   | 
   | 
   | Diamond | 
  R150105 | 
  C | 
  Rock Currier  | 
  Synthetic by GE. | 
  
           
   | 
   | 
   | Diamond | 
  R150106 | 
  C | 
  Rock Currier  | 
  Premier mine, Cullinan, Pretoria, Gauteng Province, South Africa | 
  
           
   | 
   | 
   | Diamond | 
  R150108 | 
  C | 
  Rock Currier  | 
  Bushimaie River, Belgian Congo | 
  
           
   | 
   | 
   | Diamond | 
  R150107 | 
  C | 
  Rock Currier  | 
  Zaïre | 
  
           
   | 
   | 
   | Diamond | 
  R150086 | 
  C | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Diamond | 
  R150087 | 
  C | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Diamond | 
  R150088 | 
  C | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Diamond | 
  R150089 | 
  C | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Diaoyudaoite | 
  R050182 | 
  NaAl11O17 | 
  Marcus Origlieri  | 
  Port Elizabeth, Essex County, New Jersey, USA | 
  
           
   | 
   | 
   | Diaoyudaoite | 
  R130023 | 
  NaAl11O17 | 
  Ken Roberts  | 
  Synthetic | 
  
           
   | 
   | 
   | Diaphorite | 
  R060173 | 
  Ag3Pb2Sb3S8 | 
  Ty Balacko TB4 | 
  Van Silver mine, Vancouver, British Columbia, Canada | 
  
           
   | 
   | 
   | Diaspore | 
  X050055 | 
  AlO(OH) | 
  RD Shannon 62047- 42 | 
  Turkey | 
  
           
   | 
   | 
   | Diaspore | 
  R060287 | 
  AlO(OH) | 
  Herb Obodda 077 | 
  Selcuk, Mugla Province, Turkey | 
  
           
   | 
   | 
   | Diaspore | 
  R060546 | 
  AlO(OH) | 
  Gemological Institute of America 22868 | 
  Turkey | 
  
           
   | 
   | 
   | Dickinsonite-(KMnNa) | 
  R160070 | 
  K(NaMn)CaNa3AlMn13(PO4)12(OH)2 | 
  Rock Currier  | 
  Smith mine, Newport, New Hampshire, USA | 
  
           
   | 
   | 
   | Dickinsonite-(KMnNa) | 
  R160071 | 
  K(NaMn)CaNa3AlMn13(PO4)12(OH)2 | 
  Thomas A. Loomis  | 
  Nancy Pegmatite, Chacabuco Dept, San Luis, Argentina | 
  
           
   | 
   | 
   | Dickite | 
  R060298 | 
  Al2Si2O5(OH)4 | 
  Herb Obodda 019 | 
  Piast mine, Nowa Ruda, Sudety Mountains, Poland | 
  
           
   | 
   | 
   | Dickite | 
  R090054 | 
  Al2Si2O5(OH)4 | 
  Mineralogical Museum, Harvard University  | 
  Schuylkill county, Pennsylvania, USA | 
  
           
   | 
   | 
   | Dickthomssenite | 
  R070165 | 
  MgV2O6·7H2O | 
  Michael Scott S100559 | 
  Firefly-Pigmay mine, La Sal Quadrangle, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Diegogattaite | 
  R120156 | 
  Na2CaCu2Si8O20·H2O | 
  Marcus Origlieri  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Dietrichite | 
  R070381 | 
  ZnAl2(SO4)4·22H2O | 
  Michael Scott S103879 | 
  Baia Sprie mine (Felsöbánya mine), Baia Sprie (Felsöbánya), Maramures County, Romania | 
  
           
   | 
   | 
   | Dietzeite | 
  R130292 | 
  Ca2(IO3)2(CrO4)·H2O | 
  Rock Currier  | 
  Maria Elena mine, Atacama Desert, Tocopilla Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Digenite | 
  R060840 | 
  Cu1.8S | 
  Michael Scott S101004 | 
  Butte, Montana, USA | 
  
           
   | 
   | 
   | Dingdaohengite-(Ce) | 
  R150046 | 
  (Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe3+)2Ti2Si4O22 | 
  Paul Botha  | 
  Mulanje Massif, Malawi | 
  
           
   | 
   | 
   | Diopside | 
  R040009 | 
  CaMgSi2O6 | 
  University of Arizona Mineral Museum 10012 | 
  Otter Lake, Quebec, Canada | 
  
           
   | 
   | 
   | Diopside | 
  R040097 | 
  CaMgSi2O6 | 
  University of Arizona Mineral Museum 4142 | 
  Fassathal, Tyrol | 
  
           
   | 
   | 
   | Diopside | 
  X050056 | 
  CaMgSi2O6 | 
  CIT 3477 | 
  Maui, Hawaii, USA | 
  
           
   | 
   | 
   | Diopside | 
  X050057 | 
  CaMgSi2O6 | 
  CIT 2135 | 
  Natural Bridge, New York, USA | 
  
           
   | 
   | 
   | Diopside | 
  X050058 | 
  CaMgSi2O6 | 
  CIT 7524 | 
  Cherbadung, Binntal, Wallis, Switzerland | 
  
           
   | 
   | 
   | Diopside | 
  X050059 | 
  CaMgSi2O6 | 
  G.R. Rossman 1652 | 
  Rajasthan, India | 
  
           
   | 
   | 
   | Diopside | 
  X050060 | 
  CaMgSi2O6 | 
  G.R. Rossman 664 | 
  DeKalb, New York, USA | 
  
           
   | 
   | 
   | Diopside | 
  R050406 | 
  CaMgSi2O6 | 
  University of Arizona Mineral Museum  | 
  unknown | 
  
           
   | 
   | 
   | Diopside | 
  R050496 | 
  CaMgSi2O6 | 
  California Institute of Technology W-20953 | 
  New City Quarry, Riverside, Riverside County, Calfornia, USA | 
  
           
   | 
   | 
   | Diopside | 
  R050666 | 
  CaMgSi2O6 | 
  University of Arizona Mineral Museum  | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Diopside | 
  R060061 | 
  CaMgSi2O6 | 
  University of Arizona Mineral Museum 13744 | 
  Oka, near Montreal, Quebec, Canada | 
  
           
   | 
   | 
   | Diopside | 
  R060085 | 
  CaMgSi2O6 | 
  University of Arizona Mineral Museum 4145 | 
  Tyrol, Austria | 
  
           
   | 
   | 
   | Diopside | 
  R060171 | 
  CaMgSi2O6 | 
  Guy Ouellet  | 
  Jeffrey mine, Asbestos, Quebec, Canada | 
  
           
   | 
   | 
   | Diopside | 
  R060276 | 
  CaMgSi2O6 | 
  Herb Obodda 049 | 
  Inagli, Yakutia, Siberia, Russia | 
  
           
   | 
   | 
   | Diopside | 
  R060861 | 
  CaMgSi2O6 | 
  Jennifer Sano  | 
  Red Mountain Volcano, NW of Flagstaff, Arizona, USA | 
  
           
   | 
   | 
   | Diopside | 
  R070123 | 
  CaMgSi2O6 | 
  Michael Scott S100417 | 
  Yates mine, Otter Lake, Huddersfield Township, Pontiac County, Québec, Canada | 
  
           
   | 
   | 
   | Diopside | 
  R090046 | 
  CaMgSi2O6 | 
  Wendell Wilson  | 
  Merelani, Tanzania | 
  
           
   | 
   | 
   | Diopside | 
  R110128 | 
  CaMgSi2O6 | 
  Jack Lowell  | 
  Alchori, Pakistan | 
  
           
   | 
   | 
   | Diopside | 
  R120003 | 
  CaMgSi2O6 | 
  Jack Lowell  | 
  Chifeng, Inner Mongolia | 
  
           
   | 
   | 
   | Dioptase | 
  X050061 | 
  CuSiO3·H2O | 
  University of Arizona Mineral Museum 14052 | 
  Reneville, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Dioptase | 
  R040028 | 
  CuSiO3·H2O | 
  University of Arizona Mineral Museum 8501 | 
  Tantara mine, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Dioptase | 
  R050010 | 
  CuSiO3·H2O | 
  Eugene Schlepp  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Dixenite | 
  R100044 | 
  Cu1+Fe3+Mn2+14(As5+O4)(As3+O3)5(SiO4)2(OH)6 | 
  William W Pinch  | 
  Moss mine, Nordmark, Varmland, Sweden | 
  
           
   | 
   | 
   | Djerfisherite | 
  R070390 | 
  K6(Fe,Cu,Ni)25S26Cl | 
  Michael Scott S103893 | 
  Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Djurleite | 
  R070333 | 
  Cu31S16 | 
  Michael Scott S101086 | 
  Cornwall, England | 
  
           
   | 
   | 
   | Djurleite | 
  R100172 | 
  Cu31S16 | 
  Steve Young  | 
  Butte, Montana, USA | 
  
           
   | 
   | 
   | Djurleite | 
  R100173 | 
  Cu31S16 | 
  Steve Young  | 
  King Vein, Morenci, Arizona, USA | 
  
           
   | 
   | 
   | Dmisteinbergite | 
  R130085 | 
  Ca(Al2Si2O8) | 
  Krisztian Fintor  | 
  CV3 type carbonaceous chondrite NWA 2086 at University of Szeged, Hungary | 
  
           
   | 
   | 
   | Dmisteinbergite | 
  R130087 | 
  Ca(Al2Si2O8) | 
  Michael Scott S101417 | 
  Katashina Village, Gunma Prefecture, Japan | 
  
           
   | 
   | 
   | Dolerophanite | 
  R060139 | 
  Cu2O(SO4) | 
  University of Arizona Mineral Museum 9417 | 
  Vesuvius, Italy | 
  
           
   | 
   | 
   | Dolerophanite | 
  R070652 | 
  Cu2O(SO4) | 
  Michael Scott S102948 | 
  First scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Dolomite | 
  R040030 | 
  CaMg(CO3)2 | 
  University of Arizona Mineral Museum 1961 | 
  Austria | 
  
           
   | 
   | 
   | Dolomite | 
  R050129 | 
  CaMg(CO3)2 | 
  Dave Bunk Minerals  | 
  Black Cloud mine, Leadville, Lake County, Colorado, USA | 
  
           
   | 
   | 
   | Dolomite | 
  X050062 | 
  CaMg(CO3)2 | 
  CIT 9356 | 
  Chitwood, Missouri, USA | 
  
           
   | 
   | 
   | Dolomite | 
  X050063 | 
  CaMg(CO3)2 | 
  CIT 12849 | 
  Sunk Magnesite mine, near Trieben, Steiermark, Austria | 
  
           
   | 
   | 
   | Dolomite | 
  R050241 | 
  CaMg(CO3)2 | 
  Marcus Origlieri  | 
  Eugui quarries, Navarre, Spain | 
  
           
   | 
   | 
   | Dolomite | 
  R050272 | 
  CaMg(CO3)2 | 
  University of Arizona Mineral Museum 13548 | 
  Eagle mine, Gillman, Colorado, USA | 
  
           
   | 
   | 
   | Dolomite | 
  R050357 | 
  CaMg(CO3)2 | 
  California Institute of Technology  | 
  Black Rock, Lawrence County, Arkansas, USA | 
  
           
   | 
   | 
   | Dolomite | 
  R050370 | 
  CaMg(CO3)2 | 
  Eugene Schlepp  | 
  Morro Velho mine, Nova Lima, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Dolomite | 
  R100118 | 
  CaMg(CO3)2 | 
  Ray Hill and Robert Woodside  | 
  Bay Mag mine, Mount Brussilof, British Columbia, Canada | 
  
           
   | 
   | 
   | Dolomite | 
  R100168 | 
  CaMg(CO3)2 | 
  Mineralogical Museum, Harvard University 105064 | 
  Oberdorf An Der Laming Moine near Bruck An Der Mur, Styria, Austria | 
  
           
   | 
   | 
   | Domeykite | 
  R070435 | 
  Cu3As | 
  Michael Scott S103799 | 
  Algodones mines, El Algodón, Huasco Province, Atacama Region,Chile | 
  
           
   | 
   | 
   | Dondoellite | 
  R140175 | 
  Ca2Fe(PO4)2·2H2O | 
  Rock Currier  | 
  Messel mine, Messel, Darmstadt, Hesse, Germany | 
  
           
   | 
   | 
   | Dondoellite | 
  R210003 | 
  Ca2Fe(PO4)2·2H2O | 
  Donald Doell  | 
  Grizzly Bear Creek, Stoneman Camp (Area B; Area 2), Rapid Creek, Dawson mining district, Yukon, Canada | 
  
           
   | 
   | 
   | Dongchuanite | 
  R220003 | 
  Pb4ZnZn2(PO4)4(OH)2 | 
  Bob Jenkins  | 
  Laochang ore field (Laochang Mine), Gejiu Sn-polymetallic ore field, Gejiu City, Honghe, Yunnan, China | 
  
           
   | 
   | 
   | Donnayite-(Y) | 
  R110164 | 
  NaSr3CaY(CO3)6·3H2O | 
  Donald M Doell  | 
  Mont St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Donpeacorite | 
  R060646 | 
  (Mn,Mg)MgSi2O6 | 
  Michael Scott S100819 | 
  Balmat, Balmat-Edwards Zinc District, St. Lawrence County, New York, USA | 
  
           
   | 
   | 
   | Downsite | 
  R220048 | 
  K2(MoO3)3(SO4)·4H2O | 
  Joe Marty  | 
  Freedom No. 2 mine, Marysvale District, Piute County, Utah, USA | 
  
           
   | 
   | 
   | Dozyite | 
  R100040 | 
  Mg7Al2(Si4Al2)O15(OH)12 | 
  Jeff Weissman  | 
  Wood's Chrome mine, Lancaster County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Dravite | 
  R040088 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  University of Arizona Mineral Museum 10599 | 
  Yinnietharra Station, Pilbara, Western Australia, Australia | 
  
           
   | 
   | 
   | Dravite | 
  R050059 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Rock Currier  | 
  Nepal | 
  
           
   | 
   | 
   | Dravite | 
  R050077 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Rock Currier  | 
  Yinnietharra Station, Western Australia, Australia | 
  
           
   | 
   | 
   | Dravite | 
  R060286 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Herb Obodda 075 | 
  Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Dravite | 
  R060280 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Herb Obodda 095 | 
  near Merelani, Tanzania | 
  
           
   | 
   | 
   | Dravite | 
  R060534 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Gemological Institute of America 21937 | 
  Sri Lanka | 
  
           
   | 
   | 
   | Dresserite | 
  R060304 | 
  Ba2Al4(CO3)4(OH)8·3H2O | 
  Michael Scott S100072 | 
  Francon Quarry, Montreal,  Quebec, Canada | 
  
           
   | 
   | 
   | Dreyerite | 
  R130060 | 
  Bi(VO4) | 
  William W. Pinch  | 
  Ritter mine, Schneeberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Dufrénoysite | 
  R070579 | 
  Pb2As2S5 | 
  James Shigley  | 
  Lengenbach Quarry, Imfeld, Binnental, Valais, Switzerland | 
  
           
   | 
   | 
   | Duftite | 
  R040160 | 
  PbCu(AsO4)(OH) | 
  University of Arizona Mineral Museum 744 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Duftite | 
  R050507 | 
  PbCu(AsO4)(OH) | 
  University of Arizona Mineral Museum 11536 | 
  Mt. Bonney, Northern Territory, Australia | 
  
           
   | 
   | 
   | Duftite | 
  R070474 | 
  PbCu(AsO4)(OH) | 
  Bob Jenkins  | 
  Black Pine mine, Phillipsburg, Montana, USA | 
  
           
   | 
   | 
   | Dugganite | 
  R060498 | 
  Pb3Zn3(TeO6)(AsO4)2 | 
  Michael Scott S100078 | 
  400' level, Empire mine, Tombstone, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Dukeite | 
  R070441 | 
  Bi3+24Cr6+8O57(OH)6·3H2O | 
  Michael Scott S100571 | 
  Posse mine (Posse Farm), São José de Brejaúba, Conceição do Mato Dentro, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Dumortierite | 
  X050064 | 
  AlAl6BSi3O18 | 
  G.R. Rossman 1966 | 
  Fallbrook, San Diego County, California, USA | 
  
           
   | 
   | 
   | Dumortierite | 
  R060069 | 
  AlAl6BSi3O18 | 
  University of Arizona Mineral Museum 13827 | 
  Dehesa, San Diego County, California, USA | 
  
           
   | 
   | 
   | Dumortierite | 
  X050065 | 
  AlAl6BSi3O18 | 
  Caltech 19190 | 
  Dehesa, San Diego County, California, USA | 
  
           
   | 
   | 
   | Dumortierite | 
  R050628 | 
  AlAl6BSi3O18 | 
  Gemological Center  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Dundasite | 
  R060760 | 
  PbAl2(CO3)2(OH)4·H2O | 
  Michael Scott S101361 | 
  Daoping mine, Guangxi, China | 
  
           
   | 
   | 
   | Dundasite | 
  R090038 | 
  PbAl2(CO3)2(OH)4·H2O | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Durangite | 
  R060889 | 
  NaAl(AsO4)F | 
  Bob Jenkins  | 
  northern end Thomas Range, Juab County, Utah, USA | 
  
           
   | 
   | 
   | Durangite | 
  R120118 | 
  NaAl(AsO4)F | 
  Michael Shannon  | 
  Barranca mine, Coneto de Comonfort, Durango, Mexico | 
  
           
   | 
   | 
   | Dussertite | 
  R060398 | 
  BaFe3+3(AsO4)(AsO3OH)(OH)6 | 
  American Museum of Natural History 21676 | 
  Constantine, Algeria | 
  
           
   | 
   | 
   | Dussertite | 
  R070486 | 
  BaFe3+3(AsO4)(AsO3OH)(OH)6 | 
  Bob Jenkins  | 
  Clara mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | 
  
           
   | 
   | 
   | Dwornikite | 
  R070379 | 
  Ni(SO4)·H2O | 
  Michael Scott S103816 | 
  Lipovka Mine (Lipovskaya Mine; Lipovaya Mine), Lipovka pegmatite field, Rezh District, Central Urals, Urals Region, Russia | 
  
           
   | 
   | 
   | Dypingite | 
  R060758 | 
  Mg5(CO3)4(OH)2·5H2O | 
  Michael Scott S101238 | 
  Snarum, Norway | 
  
           
   | 
   | 
   | Dypingite | 
  R070086 | 
  Mg5(CO3)4(OH)2·5H2O | 
  James Shigley  | 
  Clear Creek, New Idria District, San Benito County, California, USA | 
  
           
   | 
   | 
   | Dyscrasite | 
  R061043 | 
  Ag3+xSb1-x (x ≈ 0.2) | 
  Michael Scott S101314 | 
  Uranium mine no. 21, Pribram, Czech Republic | 
  
           
   | 
   | 
   | Eakerite | 
  R060319 | 
  Ca2Sn4+Al2Si6O18(OH)2·2H2O | 
  Michael Scott S100186 | 
  Foote Mineral Company mine, Kings Mountain, North Carolina, USA | 
  
           
   | 
   | 
   | Earlshannonite | 
  R100095 | 
  Mn2+Fe3+2(PO4)2(OH)2·4H2O | 
    | 
  Foote mine, Kings Mountain, North Carolina | 
  
           
   | 
   | 
   | Eastonite | 
  R100078 | 
  KAlMg2(Si2Al2)O10(OH)2 | 
  Jeff Weissman  | 
  C.K. Williams & Co. quarry, Northampton County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Ebnerite | 
  R220032 | 
  (NH4)Zn(PO4) | 
  Joe Marty  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Ecdemite | 
  R060738 | 
  Pb6As3+2O7Cl4 | 
  Michael Scott S101198 | 
  Laurium, Greece | 
  
           
   | 
   | 
   | Eckermannite | 
  R060320 | 
  NaNa2(Mg4Al)Si8O22(OH)2 | 
  Michael Scott S100151 | 
  Norra Karr Complex, near Granna, Ostergotsland, Sweden | 
  
           
   | 
   | 
   | Eclarite | 
  R110124 | 
  (Cu,Fe)Pb9Bi12S28 | 
  Mark Feinglos   | 
  Crabtree quarry, Wake County, North Carolina, USA | 
  
           
   | 
   | 
   | Eddavidite | 
  R050381 | 
  Cu12Pb2O15Br2 | 
  University of Arizona Mineral Museum 12326 | 
  Southwest mine, Bisbee, Arizona, USA | 
  
           
   | 
   | 
   | Edenite | 
  R050415 | 
  NaCa2Mg5(Si7Al)O22(OH)2 | 
  Marcus Origlieri  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Edenite | 
  R060029 | 
  NaCa2Mg5(Si7Al)O22(OH)2 | 
  University of Arizona Mineral Museum 4226 | 
  Renfrew County, Ontario, Canada | 
  
           
   | 
   | 
   | Edgarbaileyite | 
  R060500 | 
  Hg1+6Si2O7 | 
  Michael Scott S100156 | 
  Clear Creek claim, southern San Benito County, California, USA | 
  
           
   | 
   | 
   | Edgarite | 
  R060850 | 
  FeNb3S6 | 
  Michael Scott S100920 | 
  Kukisvumchorr Mountain, Khibina massif, Kola, Russia | 
  
           
   | 
   | 
   | Edingtonite | 
  R040003 | 
  Ba(Si3Al2)O10·4H2O | 
  University of Arizona Mineral Museum 2960 | 
  Bohl, Sweden | 
  
           
   | 
   | 
   | Edingtonite | 
  R040110 | 
  Ba(Si3Al2)O10·4H2O | 
  National Museums of Canada 014899 | 
  2350 level, Brunswick 12 mine, Bathhurst, New Brunswick, Canada | 
  
           
   | 
   | 
   | Edoylerite | 
  R060543 | 
  Hg2+3(Cr6+O4)S2 | 
  Michael Scott S100047 | 
  Clear Creek claim, south San Benito County, California, USA | 
  
           
   | 
   | 
   | Edwindavisite | 
  R230005 | 
  Cu(C2O4)(NH3) | 
  Joe Marty JM-16394 | 
  125' Level, Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Effenbergerite | 
  R120088 | 
  BaCuSi4O10 | 
  William W Pinch  | 
  Eastern orebody, Wessels mine, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Effenbergerite | 
  R150110 | 
  BaCuSi4O10 | 
  Yan Chen and Shouhua Feng  | 
  Synthetic | 
  
           
   | 
   | 
   | Eglestonite | 
  R060612 | 
  ([Hg1+]2)3OCl3(OH) | 
  Michael Scott S101060 | 
  Cahill mine, Poverty Peak District, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Eglestonite | 
  R140234 | 
  ([Hg1+]2)3OCl3(OH) | 
  Rock Currier  | 
  Cinnabar City mine, Spring Valley District, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Ehrleite | 
  R180029 | 
  Ca2ZnBe(PO4)2(PO3OH)·4H2O | 
  Tom Loomis TLYH-62 | 
  Tip Top mine, Custer District, Custer Co., South Dakota, USA | 
  
           
   | 
   | 
   | Eirikite | 
  R120006 | 
  KNa6Be2(Si15Al3)O39F2 | 
  Donald Doell  | 
  Poudrette quarry, Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Eitelite | 
  R110214 | 
  Na2Mg(CO3)2 | 
  Gunnar Farber  | 
  Westvaco mine, Green River, Sweetwater County, Wyoming, USA | 
  
           
   | 
   | 
   | Ekanite | 
  X060007 | 
  Ca2ThSi8O20 | 
  University of Arizona Mineral Museum 10553 | 
  Sri Lanka | 
  
           
   | 
   | 
   | Ekanite | 
  R080036 | 
  Ca2ThSi8O20 | 
   3834 | 
  Unknown | 
  
           
   | 
   | 
   | Ekanite | 
  R100158 | 
  Ca2ThSi8O20 | 
  William W. Pinch  | 
  Ratnapura District, Sri Lanka | 
  
           
   | 
   | 
   | Ekatite | 
  R110136 | 
  (Fe3+,Fe2+,Zn)12(AsO3)6(AsO3,SiO3OH)2(OH)6 | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Elbaite | 
  R050119 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Carlos and Paulo Vasconcelos  | 
  Cruziero mine, San Jose, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Elbaite | 
  X050066 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  G.R. Rossman 1368 | 
  Otjimbinque, Namibia | 
  
           
   | 
   | 
   | Elbaite | 
  X050067 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  G.R. Rossman 815 | 
  Ware mine, Aguanga Mtns, San Diego County, California, USA | 
  
           
   | 
   | 
   | Elbaite | 
  R050260 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Marcus Origlieri  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Elbaite | 
  R050487 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  California Institute of Technology 9365 | 
  White Queen mine, Pala, San Diego County, California, USA | 
  
           
   | 
   | 
   | Elbaite | 
  R060003 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Bob Downs  | 
  Mount Begbie, Revelstoke, British Columbia, Canada | 
  
           
   | 
   | 
   | Elbaite | 
  R060566 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Gemological Institute of America 30855 | 
  unknown | 
  
           
   | 
   | 
   | Elbaite | 
  R060631 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Gemological Institute of America 09 | 
  unknown | 
  
           
   | 
   | 
   | Elbaite | 
  R060562 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Gemological Institute of America 14 | 
  unknown | 
  
           
   | 
   | 
   | Elbaite | 
  R060560 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Gemological Institute of America 26 | 
  California, USA | 
  
           
   | 
   | 
   | Elbaite | 
  R070077 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Tommy Wu  | 
  Canary mine, Lundazi area of eastern Zambia | 
  
           
   | 
   | 
   | Elbaite | 
  R070564 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Gemological Institute of America 30855 | 
  unknown | 
  
           
   | 
   | 
   | Elbaite | 
  R100137 | 
  Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  William W. Pinch  | 
  Nigeria | 
  
           
   | 
   | 
   | Eliseevite | 
  R130075 | 
  Na1.5Li{Ti2O2[Si4O10.5(OH)1.5]}·2H2O | 
  Sergey V. Krivovichev  | 
  Mt. Alluaiv, Lovozero alkaline massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Ellenbergerite | 
  R070395 | 
  Mg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10 | 
  Michael Scott S104599 | 
  Case Parigi, Martiniana Po, Varaita Valley, Dora Maira Massif, Cuneo Province, Piedmont, Italy | 
  
           
   | 
   | 
   | Elpasolite | 
  R061029 | 
  K2NaAlF6 | 
  Michael Scott S101431 | 
  Le Cetine mine, Rosia, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Elpidite | 
  R060064 | 
  Na2ZrSi6O15·3H2O | 
  University of Arizona Mineral Museum 2921 | 
  Narsarsuk, Greenland | 
  
           
   | 
   | 
   | Elpidite | 
  R060200 | 
  Na2ZrSi6O15·3H2O | 
  Royal Ontario Museum M44301 | 
  Poudrette Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Elpidite | 
  R060214 | 
  Na2ZrSi6O15·3H2O | 
  Royal Ontario Museum M52211 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Elyite | 
  R090024 | 
  CuPb4(SO4)O2(OH)4·H2O | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Elyite | 
  R130277 | 
  CuPb4(SO4)O2(OH)4·H2O | 
  Neil Hubbard  | 
  Haltcliff Smelter, Caldbeck Fells, Cumbria | 
  
           
   | 
   | 
   | Emeleusite | 
  R061034 | 
  Na2LiFe3+Si6O15 | 
  Michael Scott S101307 | 
  Igdlutalig, Ilimaussaq, Greenland | 
  
           
   | 
   | 
   | Emmonsite | 
  R060802 | 
  Fe3+2(Te4+O3)3·2H2O | 
  Michael Scott S100201 | 
  Moctezuma mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Emmonsite | 
  R120126 | 
  Fe3+2(Te4+O3)3·2H2O | 
  Robert A. Jenkins  | 
  Wendy open pit, Tambo mine, El Indio deposit, Elqui Province, Coquimbo Region, Chile | 
  
           
   | 
   | 
   | Emmonsite | 
  R130473 | 
  Fe3+2(Te4+O3)3·2H2O | 
  Rock Currier  | 
  Tombstone, Arizona, USA | 
  
           
   | 
   | 
   | Emplectite | 
  R070307 | 
  CuBiS2 | 
  James Shigley  | 
  Schwarzenberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Empressite | 
  R200013 | 
  AgTe | 
  Joan Rosell, Jordi Ibáñez (Geo3BCN, Barcelona) and Tariq Jawhari (CCiTUB Barcelona) RM2970 | 
  Empress Josephine mine , Bonanza, Bonanza Mining District, Saguache Co., Colorado, USA | 
  
           
   | 
   | 
   | Enargite | 
  R050373 | 
  Cu3AsS4 | 
  Eugene Schlepp  | 
  Butte, Silver Bow County, Montana, USA | 
  
           
   | 
   | 
   | Enargite | 
  R050435 | 
  Cu3AsS4 | 
  University of Arizona Mineral Museum 1803 | 
  Longfellow mine, Red Mountain Pass, Ouray, Colorado, USA | 
  
           
   | 
   | 
   | Enargite | 
  R050442 | 
  Cu3AsS4 | 
  University of Arizona Mineral Museum 10457 | 
  Butte, Silver Bow County, Montana, USA | 
  
           
   | 
   | 
   | Enargite | 
  R070176 | 
  Cu3AsS4 | 
  Michael Scott S106193 | 
  Zuni Mine (Zuñi Mine), Anvil Mountain, Silverton, Silverton District, San Juan County, Colorado, USA | 
  
           
   | 
   | 
   | Englishite | 
  R060825 | 
  K3Na2Ca10Al15(OH)7(PO4)21·26H2O | 
  Michael Scott S101172 | 
  Clay Canyon, Fairfield, Utah County, Utah, USA | 
  
           
   | 
   | 
   | Enstatite | 
  R040093 | 
  Mg2Si2O6 | 
  University of Arizona Mineral Museum 4637 | 
  Castle Rock, Pennsylvania, USA | 
  
           
   | 
   | 
   | Enstatite | 
  R040094 | 
  Mg2Si2O6 | 
  University of Arizona Mineral Museum 4719 | 
  unknown | 
  
           
   | 
   | 
   | Enstatite | 
  X050192 | 
  Mg2Si2O6 | 
  G.R. Rossman 40 | 
  Bamble, Norway | 
  
           
   | 
   | 
   | Enstatite | 
  X050068 | 
  Mg2Si2O6 | 
  G.R. Rossman 1655 | 
  Kygole, Australia | 
  
           
   | 
   | 
   | Enstatite | 
  X050069 | 
  Mg2Si2O6 | 
  G.R. Rossman 325 | 
  India | 
  
           
   | 
   | 
   | Enstatite | 
  X050193 | 
  Mg2Si2O6 | 
  G.R. Rossman 1650 | 
  India | 
  
           
   | 
   | 
   | Enstatite | 
  X050070 | 
  Mg2Si2O6 | 
  CIT 11213 | 
  Webster, Jackson County, North Carolina, USA | 
  
           
   | 
   | 
   | Enstatite | 
  R050644 | 
  Mg2Si2O6 | 
  Jibamitra Ganguly  | 
  Morogoro, Tanzania | 
  
           
   | 
   | 
   | Enstatite | 
  R060630 | 
  Mg2Si2O6 | 
  Gemological Institute of America 11 | 
  unknown | 
  
           
   | 
   | 
   | Enstatite | 
  R060744 | 
  Mg2Si2O6 | 
  Herb Obodda 079 | 
  Orissa, India | 
  
           
   | 
   | 
   | Enstatite | 
  R070097 | 
  Mg2Si2O6 | 
  Michael Scott S100708 | 
  Concord, Pennsylvania, USA | 
  
           
   | 
   | 
   | Enstatite | 
  R070418 | 
  Mg2Si2O6 | 
  Michael Scott S102823 | 
  India | 
  
           
   | 
   | 
   | Enstatite | 
  R070550 | 
  Mg2Si2O6 | 
  www.multicolour.com  | 
  Tanzania | 
  
           
   | 
   | 
   | Enstatite | 
  R070641 | 
  Mg2Si2O6 | 
  Jibamitra Ganguly  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Enstatite | 
  R100093 | 
  Mg2Si2O6 | 
  William W. Pinch  | 
  Hunan Province, China | 
  
           
   | 
   | 
   | Enstatite | 
  R120168 | 
  Mg2Si2O6 | 
  Rock Currier  | 
  Merensky Reef, Rustenburg, Brushveld District, South Africa | 
  
           
   | 
   | 
   | Enstatite | 
  R120174 | 
  Mg2Si2O6 | 
  Bob Jenkins  | 
  Nuestra Señora del Carmen Mines, La Celia, Jumilla, Murcia, Spain | 
  
           
   | 
   | 
   | Eosphorite | 
  R050570 | 
  Mn2+Al(PO4)(OH)2·H2O | 
  University of Arizona Mineral Museum 9110 | 
  Lavra da Ilha, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Eosphorite | 
  R050557 | 
  Mn2+Al(PO4)(OH)2·H2O | 
  Dave Bunk Minerals  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Eosphorite | 
  R060293 | 
  Mn2+Al(PO4)(OH)2·H2O | 
  Herb Obodda 094 | 
  Mawi area, Nuristan, Laghman Province, Afghanistan | 
  
           
   | 
   | 
   | Eosphorite | 
  R061055 | 
  Mn2+Al(PO4)(OH)2·H2O | 
  Royal Ontario Museum M52510 | 
  Mendes Pimental Pegmatite, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Eosphorite | 
  R130480 | 
  Mn2+Al(PO4)(OH)2·H2O | 
  Rock Currier  | 
  Taraqual, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Eosphorite | 
  R140390 | 
  Mn2+Al(PO4)(OH)2·H2O | 
  Gunnar Farber  | 
  Seco claim, Taquaral, Brazil | 
  
           
   | 
   | 
   | Ephesite | 
  R060848 | 
  NaLiAl2(Si2Al2)O10(OH)2 | 
  Michael Scott S100913 | 
  Postmaasburg, South Africa | 
  
           
   | 
   | 
   | Epididymite | 
  R060773 | 
  Na2Be2Si6O15·H2O | 
  Michael Scott S101300 | 
  unknown | 
  
           
   | 
   | 
   | Epididymite | 
  R070580 | 
  Na2Be2Si6O15·H2O | 
  James Shigley  | 
  Narsarsuk, Narsaq, Kitaa, Greenland | 
  
           
   | 
   | 
   | Epididymite | 
  R110029 | 
  Na2Be2Si6O15·H2O | 
  Marcus Origlieri  | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Epidote | 
  R040089 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 4485 | 
  Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Epidote | 
  R040092 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 2179 | 
  Nahant, Massachusetts, USA | 
  
           
   | 
   | 
   | Epidote | 
  R050064 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Rock Currier  | 
  East Xichang City, Meigu County, Sichuan Province, China | 
  
           
   | 
   | 
   | Epidote | 
  R050131 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Dave Bunk Minerals  | 
  Calumet mine, Chaffee County, Colorado, USA | 
  
           
   | 
   | 
   | Epidote | 
  R050191 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Dave Bunk Minerals  | 
  Pampa Blanca, Castrovirreyna Province, Huancavelica Department, Peru | 
  
           
   | 
   | 
   | Epidote | 
  R050202 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Bob Downs  | 
  Iron Cap mine, Landsman Camp, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Epidote | 
  X050073 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  RD Shannon, 62047- 72 | 
  Pakistan | 
  
           
   | 
   | 
   | Epidote | 
  R050303 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Eugene Schlepp  | 
  San Martin mine, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Epidote | 
  R070205 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Renato and Adriana Pagano  | 
  Jebel Shacro, Morocco | 
  
           
   | 
   | 
   | Epidote | 
  R100129 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  William W. Pinch  | 
  Pakistan-Afganistan | 
  
           
   | 
   | 
   | Epidote | 
  R100148 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  William W. Pinch  | 
  Ethiopia | 
  
           
   | 
   | 
   | Epidote | 
  R110127 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Jack Lowell  | 
  Alchori, Pakistan | 
  
           
   | 
   | 
   | Epidote | 
  R110129 | 
  Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 
  Jack Lowell   | 
  Quetta, Baluchistan, Pakistan | 
  
           
   | 
   | 
   | Epistilbite | 
  R061105 | 
  Ca3[Si18Al6O48]·16H2O | 
  Michael Scott S104446 | 
  Berufiord, Iceland | 
  
           
   | 
   | 
   | Epistolite | 
  R070396 | 
  (Na◻)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4 | 
  Michael Scott S104615 | 
  Tugtup Agtakorfia, Ilimaussaq complex, Narsaq, Kitaa (West Greenland) Province, Greenland | 
  
           
   | 
   | 
   | Epsomite | 
  X050074 | 
  Mg(SO4)·7H2O | 
  Caltech  | 
  Death Valley, Inyo County, California, USA | 
  
           
   | 
   | 
   | Epsomite | 
  R150060 | 
  Mg(SO4)·7H2O | 
  Hexiong Yang  | 
  Synthetic, purchased from Walgreens | 
  
           
   | 
   | 
   | Erdite | 
  R070139 | 
  NaFeS2·2H2O | 
  Michael Scott S100558 | 
  Coyote Peak, Orick, Humboldt County, California, USA | 
  
           
   | 
   | 
   | Ericaite | 
  R130476 | 
  Fe2+3B7O13Cl | 
  Rock Currier  | 
  Bischofferode, Kreis Worbis, Thuringen, Germany | 
  
           
   | 
   | 
   | Ericaite | 
  R130477 | 
  Fe2+3B7O13Cl | 
  Rock Currier  | 
  Sudahm, Germany | 
  
           
   | 
   | 
   | Ericssonite | 
  R070615 | 
  BaMn2+2Fe3+(Si2O7)O(OH) | 
  Rock Currier (large piece), Michael Scott (small piece) S100162 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Ericssonite | 
  R130001 | 
  BaMn2+2Fe3+(Si2O7)O(OH) | 
  Marcus Origlieri  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Erikapohlite | 
  R220044 | 
  (◻0.5Cu0.5)CuCaZn2(AsO4)3·H2O | 
  Robert Lavinsky  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Eriochalcite | 
  R070026 | 
  CuCl2·2H2O | 
  Michael Scott S105091 | 
  Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Erionite-Ca | 
  R060836 | 
  Ca5[Si26Al10O72]·30H2O | 
  Michael Scott S100925 | 
  Moeraki, Otago, South Island, New Zealand | 
  
           
   | 
   | 
   | Erionite-Ca | 
  R061110 | 
  Ca5[Si26Al10O72]·30H2O | 
  Michael Scott S104607 | 
  Maze, Niigata Prefecture, Japan | 
  
           
   | 
   | 
   | Erionite-K | 
  R061104 | 
  K10[Si26Al10O72]·30H2O | 
  Michael Scott S104442 | 
  Chase Creek, Falkland, British Columbia, Canada | 
  
           
   | 
   | 
   | Erionite-Na | 
  R061126 | 
  Na10[Si26Al10O72]·30H2O | 
  Michael Scott S104606 | 
  Dunseverick, Ireland | 
  
           
   | 
   | 
   | Erlichmanite | 
  R070095 | 
  OsS2 | 
  Michael Scott S105089 | 
  placer from Philipp Massif, Kamchatka, Russia | 
  
           
   | 
   | 
   | Ernstite | 
  R141205 | 
  (Mn2+,Fe3+)Al(PO4)(OH,O)2 | 
  Smithsonian 145620 | 
   | 
  
           
   | 
   | 
   | Erythrite | 
  R050073 | 
  Co3(AsO4)2·8H2O | 
  Rock Currier  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Erythrosiderite | 
  R120084 | 
  K2Fe3+Cl5·H2O | 
  Robert Jenkins  | 
  Mount Vesuvius, Campania, Italy | 
  
           
   | 
   | 
   | Eskebornite | 
  R060791 | 
  CuFeSe2 | 
  Michael Scott S101151 | 
  Slavkovice Morava, Czech Republic | 
  
           
   | 
   | 
   | Eskolaite | 
  R060892 | 
  Cr2O3 | 
  Michael Scott S101026 | 
  Outokumpu, Finland | 
  
           
   | 
   | 
   | Esperite | 
  R060295 | 
  PbCa2(ZnSiO4)3 | 
  Michael Scott S100232 | 
  Parker Shaft, Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Esperite | 
  R070512 | 
  PbCa2(ZnSiO4)3 | 
  Canadian Museum of Nature LP2006-0222 | 
  Parker Shaft, Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Esseneite | 
  R061123 | 
  CaFe3+AlSiO6 | 
  Michael Scott S104474 | 
  Durham Ranch, South of Gillette, Sublette County, Wyoming, USA | 
  
           
   | 
   | 
   | Ettringite | 
  R070208 | 
  Ca6Al2(SO4)3(OH)12·27H2O | 
  Michael Scott S100454 | 
  Hatrurim Formation, Negev Desert, West of Dead Sea, southern Israel | 
  
           
   | 
   | 
   | Eucairite | 
  R060639 | 
  CuAgSe | 
  Michael Scott S100814 | 
  Mina Santa Brigida, Sierra de Famatina, La Rioja, Argentina | 
  
           
   | 
   | 
   | Euchlorine | 
  R070460 | 
  KNaCu3O(SO4)3 | 
  Michael Scott S105976 | 
  Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Euchroite | 
  R050579 | 
  Cu2(AsO4)(OH)·3H2O | 
  University of Arizona Mineral Museum 284 | 
  Lubietova, Banskobystricky, Slovakia | 
  
           
   | 
   | 
   | Euclase | 
  R050032 | 
  BeAlSiO4(OH) | 
  University of Arizona Mineral Museum 13802 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Euclase | 
  X050075 | 
  BeAlSiO4(OH) | 
  RD Shannon 56163- 14 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Euclase | 
  R050623 | 
  BeAlSiO4(OH) | 
  Gemmological Center  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Euclase | 
  R100157 | 
  BeAlSiO4(OH) | 
  William W. Pinch  | 
  Unknown | 
  
           
   | 
   | 
   | Eucryptite | 
  R070248 | 
  LiAlSiO4 | 
  Michael Scott S104487 | 
  Bikita, Masvingo (Fort Victoria), Masvingo District, Mashonaland West, Zimbabwe | 
  
           
   | 
   | 
   | Eudialyte | 
  R050230 | 
  Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 | 
  Marcus Origlieri  | 
  Kipawa alkaline complex, near Sheffield Lake, Villedieu Township, Temiscamingue County, Quebec, Canada | 
  
           
   | 
   | 
   | Eudialyte | 
  R060035 | 
  Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 | 
  University of Arizona Mineral Museum 9530 | 
  Chibini, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Eudialyte | 
  R060206 | 
  Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 | 
  Royal Ontario Museum M27116 | 
  Desourdy Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Eudidymite | 
  R060063 | 
  Na2Be2Si6O15·H2O | 
  University of Arizona Mineral Museum 2909 | 
  Langesundfjord, Norway | 
  
           
   | 
   | 
   | Eudidymite | 
  R060383 | 
  Na2Be2Si6O15·H2O | 
  Herb Obodda 046 | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Eulytine | 
  R060058 | 
  Bi4(SiO4)3 | 
  University of Arizona Mineral Museum 16129 | 
  Schneeberg, Saxony, Germany | 
  
           
   | 
   | 
   | Eulytine | 
  R130114 | 
  Bi4(SiO4)3 | 
  Mark Ascher  | 
  Flying Saucer Group, Maricopa County, Arizona | 
  
           
   | 
   | 
   | Eurekadumpite | 
  R100039 | 
  (Cu,Zn)16(Te4+O3)2(AsO4)3Cl(OH)18·7H2O | 
  Jeff Weissman  | 
  Centennial Eureka mine, Juab County, Utah, USA | 
  
           
   | 
   | 
   | Euxenite-(Y) | 
  R060856 | 
  Y(NbTi)O6 | 
  Michael Scott S101012 | 
  Betafo, Madagascar | 
  
           
   | 
   | 
   | Euxenite-(Y) | 
  R070324 | 
  Y(NbTi)O6 | 
  James Shigley  | 
  Impilahti Parish, Lake Ladoga region, Russia | 
  
           
   | 
   | 
   | Euxenite-(Y) | 
  R080101 | 
  Y(NbTi)O6 | 
  Michael Scott S101012 | 
  Betafo, Madagascar | 
  
           
   | 
   | 
   | Evanichite | 
  R220006 | 
  Pb6Cr3+(Cr6+O4)2(SO4)(OH)7FCl | 
  Daniel Evanich  | 
  Mammoth-Saint Anthony mine, Tiger, Pinal Co., Arizona, USA | 
  
           
   | 
   | 
   | Evansite | 
  R061030 | 
  Al3(PO4)(OH)6·8H2O | 
  Michael Scott S101244 | 
  Creu Olorde, Barcelona, Spain | 
  
           
   | 
   | 
   | Eveite | 
  R100048 | 
  Mn2+2(AsO4)(OH) | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Ezcurrite | 
  R060645 | 
  Na2B5O7(OH)3·2H2O | 
  Michael Scott S100818 | 
  Salar del Hombre Muerto, Catamarca, Argentina | 
  
           
   | 
   | 
   | Ezcurrite | 
  C131036 | 
  Na2B5O7(OH)3·2H2O | 
  Rock Currier  | 
  Tincalayu mine, Salar Del Hombre Muerto, Salta, Argentina | 
  
           
   | 
   | 
   | Eztlite | 
  R130488 | 
  Pb2Fe3+3(Te4+O3)3(SO4)O2Cl | 
  Rock Currier  | 
  Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Faheyite | 
  R100084 | 
  Be2Mn2+Fe3+2(PO4)4·6H2O | 
  Royal Ontaario Museum M56011 | 
  Sapucaia mine, Galiléia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fairbankite | 
  R140375 | 
  Pb2+12(Te4+O3)11(SO4) | 
  Rock Currier  | 
  Near Tombstone, Tombstone District, Tombstone Hills, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Fairfieldite | 
  R050539 | 
  Ca2Mn2+(PO4)2·2H2O | 
  University of Arizona Mineral Museum 9329 | 
  Foote mine, Kings Mountain, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Fairfieldite | 
  R070630 | 
  Ca2Mn2+(PO4)2·2H2O | 
  Dakota Matrix Minerals  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Faizievite | 
  R070221 | 
  Li6K2Na(Ca6Na)Ti4(Si6O18)2(Si12O30)F2 | 
  Michael Scott S100427 | 
  Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mts, Districts of the Republican Subordination, Tajikistan | 
  
           
   | 
   | 
   | Famatinite | 
  R110021 | 
  Cu3SbS4 | 
  William Pinch  | 
  Mohawk mine, Goldfield, Esmeralda County, Nevada, USA | 
  
           
   | 
   | 
   | Famatinite | 
  R110022 | 
  Cu3SbS4 | 
  William Pinch  | 
  Quiruvilca, La Libertad Department, Peru | 
  
           
   | 
   | 
   | Farringtonite | 
  R130127 | 
  Mg3(PO4)2 | 
  Rock Currier  | 
  Springwater meteorite, Springwater, Canada | 
  
           
   | 
   | 
   | Faujasite-Ca | 
  R070462 | 
  (Ca,Na,Mg)2(Si,Al)12O24·15H2O | 
  Michael Scott S104917 | 
  Table Mountain, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Faujasite-Mg | 
  R080141 | 
  (Mg,Na,K,Ca)2(Si,Al)12O24·15H2O | 
  James Shigley  | 
  Limburg Quarries, Sasbach, Kaiserstuhl, Baden-Wurttemberg, Germany | 
  
           
   | 
   | 
   | Faustite | 
  R060891 | 
  ZnAl6(PO4)4(OH)8·4H2O | 
  Michael Scott S101025 | 
  Bingham Copper mine, Salt Lake County, Utah | 
  
           
   | 
   | 
   | Fayalite | 
  X050076 | 
  Fe2+2(SiO4) | 
  RD Shannon 62047- 8 | 
   | 
  
           
   | 
   | 
   | Fayalite | 
  X050077 | 
  Fe2+2(SiO4) | 
  G.R. Rossman 618 | 
  synthetic | 
  
           
   | 
   | 
   | Fayalite | 
  R070157 | 
  Fe2+2(SiO4) | 
  James Shigley  | 
  Coso Hot Springs, Inyo County, California, USA | 
  
           
   | 
   | 
   | Fayalite | 
  R070374 | 
  Fe2+2(SiO4) | 
  Michael Scott S104909 | 
  Little Lake, Lake County, California, USA | 
  
           
   | 
   | 
   | Fayalite | 
  R070293 | 
  Fe2+2(SiO4) | 
  Michael Scott S106013 | 
  Pike's Peak, Teller County, Colorado, USA | 
  
           
   | 
   | 
   | Fayalite | 
  R100102 | 
  Fe2+2(SiO4) | 
  American Museum of Natural History B06-045 | 
  Bushveld Intrusive, 7 km east of Olepane, Limpopo Province, South Africa | 
  
           
   | 
   | 
   | Fayalite | 
  R100103 | 
  Fe2+2(SiO4) | 
  American Museum of Natural History 89035 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Fayalite | 
  R100104 | 
  Fe2+2(SiO4) | 
  American Museum of Natural History 75253 | 
  Dannemora, Uppsala Province, Sweden | 
  
           
   | 
   | 
   | Fe2SiO4 spinel | 
  X050109 | 
   | 
  G.R. Rossman 471 | 
  Synthesized by Takehiko Yagi in 1974 at the Institute for Solid State Physics, Tokyo University | 
  
           
   | 
   | 
   | Fedotovite | 
  R070470 | 
  K2Cu3O(SO4)3 | 
  Michael Scott S105017 | 
  Great Fissure (Main Fracture) eruption, Tolbachik volcano,  Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Feklichevite | 
  R120046 | 
  Na11Ca9(Fe3+,Fe2+)2Zr3Nb(Si25O73)(OH,H2O,Cl,O)5 | 
  Donald Doell  | 
  Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Felsőbányaite | 
  R060239 | 
  Al4(SO4)(OH)10·4H2O | 
  Michael Scott S100241 | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Felsőbányaite | 
  R060565 | 
  Al4(SO4)(OH)10·4H2O | 
  Michael Scott S100318 | 
  near Weymouth, Dorset, England | 
  
           
   | 
   | 
   | Fenaksite | 
  R080135 | 
  KNaFe2+Si4O10 | 
  Michael Scott S105088 | 
  Yukspor Mountain, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Fencooperite | 
  R061032 | 
  Ba6Fe3+3Si8O23(CO3)2Cl3·H2O | 
  Michael Scott S101302 | 
  Trumbull Peak, Mariposa County, California, USA | 
  
           
   | 
   | 
   | Ferberite | 
  R040044 | 
  Fe2+(WO4) | 
  University of Arizona Mineral Museum 2033 | 
  Chocote, Bolivia | 
  
           
   | 
   | 
   | Ferberite | 
  R050090 | 
  Fe2+(WO4) | 
  Rock Currier  | 
  Yaogangxian mine, Cheng Zhu City, South Hunan, China | 
  
           
   | 
   | 
   | Ferberite | 
  R050632 | 
  Fe2+(WO4) | 
  University of Arizona Mineral Museum 15596 | 
  Chance mine, Boulder, Colorado, USA | 
  
           
   | 
   | 
   | Fergusonite-(Ce) | 
  R110050 | 
  CeNbO4·0.3H2O | 
  Donald M Doell  | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Fernandinite | 
  R070694 | 
  (Ca,Na,K)0.9(V5+,V4+,Fe2+,Ti)8O20·4H2O | 
  James Shigley  | 
  Ragra mine, Junin, Cerro de Pasco, Pasco, Peru | 
  
           
   | 
   | 
   | Ferri-kaersutite | 
  R150047 | 
  NaCa2(Mg3Fe3+Ti)(Si6Al2)O22O2 | 
  Donald Doell  | 
  Rothenberg quarry, Mendig, Eifel, Germany | 
  
           
   | 
   | 
   | Ferri-pedrizite | 
  R070344 | 
  NaLi2(Mg2Fe3+2Li)Si8O22(OH)2 | 
  Michael Scott S105090 | 
  east Pedriza Massif, Sierra de Guadarrama, Spain | 
  
           
   | 
   | 
   | Ferri-winchite | 
  R060038 | 
  ◻(NaCa)(Mg4Fe3+)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 17021 | 
  Imerina, Madagascar | 
  
           
   | 
   | 
   | Ferri-winchite | 
  R060704 | 
  ◻(NaCa)(Mg4Fe3+)Si8O22(OH)2 | 
  Michael Scott S101226 | 
  Tirodi mines, Central Provinces, India | 
  
           
   | 
   | 
   | Ferriallanite-(Ce) | 
  R060813 | 
  CaCe(Fe3+AlFe2+)[Si2O7][SiO4]O(OH) | 
  Michael Scott S101160 | 
  Bastnas, Sweden | 
  
           
   | 
   | 
   | Ferriallanite-(La) | 
  R141069 | 
  CaLa(Fe3+AlFe2+)[Si2O7][SiO4]O(OH) | 
  Ch. and H. Schäfer  | 
  In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Ferricopiapite | 
  R060721 | 
  Fe3+0.67Fe3+4(SO4)6(OH)2·20H2O | 
  University of Arizona Mineral Museum 8033 | 
  Alcaparrosa mine, near Cerritos Bayos, El Loa Province, Chile | 
  
           
   | 
   | 
   | Ferrierite-K | 
  R110200 | 
  (K,Na)5(Si31Al5)O72·18H2O | 
  Donald Doell  | 
  Conejo Volcanics, Agoura, Santa Monica Mountains, Los Angeles County, California, USA | 
  
           
   | 
   | 
   | Ferrierite-Mg | 
  R060982 | 
  [Mg2(K,Na)2Ca0.5](Si29Al7)O72·18H2O | 
  Bob Jenkins  | 
  Monte Lake, British Columbia, Canada | 
  
           
   | 
   | 
   | Ferrierite-Mg | 
  R070091 | 
  [Mg2(K,Na)2Ca0.5](Si29Al7)O72·18H2O | 
  Michael Scott S104861 | 
  Kamloops Lake, British Columbia, Canada | 
  
           
   | 
   | 
   | Ferrierite-Mg | 
  R070119 | 
  [Mg2(K,Na)2Ca0.5](Si29Al7)O72·18H2O | 
  Michael Scott S100411 | 
  Libous, Chomutov, Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic | 
  
           
   | 
   | 
   | Ferrierite-Mg | 
  R070118 | 
  [Mg2(K,Na)2Ca0.5](Si29Al7)O72·18H2O | 
  Michael Scott S100412 | 
  Monastir, near Cagliari, Sardinia, Italy | 
  
           
   | 
   | 
   | Ferrilotharmeyerite | 
  R060209 | 
  CaZnFe3+(AsO4)2(OH)·H2O | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Ferrimolybdite | 
  R050566 | 
  Fe3+2(Mo6+O4)3·7H2O | 
  University of Arizona Mineral Museum 3610 | 
  Kingman, Arizona, USA | 
  
           
   | 
   | 
   | Ferrimolybdite | 
  R050542 | 
  Fe3+2(Mo6+O4)3·7H2O | 
  University of Arizona Mineral Museum 1774 | 
  Alicante mine, Colorado, USA | 
  
           
   | 
   | 
   | Ferrinatrite | 
  R170042 | 
  Na3Fe3+(SO4)3·3H2O | 
  James Shigley  | 
  Alcaparrosa, Antofogasta, Chile | 
  
           
   | 
   | 
   | Ferrisurite | 
  R060055 | 
  Pb2.4Fe3+2Si4O10(CO3)1.7(OH)3·nH2O | 
  Marcus Origlieri  | 
  Shirley Ann Claim, Death Valley National Monument, Inyo County, California, USA | 
  
           
   | 
   | 
   | Ferro-actinolite | 
  R060189 | 
  ◻Ca2(Mg2.5-0.0Fe2+2.5-5.0)Si8O22(OH)2 | 
  Lloyd Twaites  | 
  Merry Widow mine, Vancouver Island, British Columbia, Canada | 
  
           
   | 
   | 
   | Ferro-edenite | 
  R060044 | 
  NaCa2Fe2+5(Si7Al)O22(OH)2 | 
  University of Arizona Mineral Museum 13355 | 
  Barkevik, Norway | 
  
           
   | 
   | 
   | Ferro-ferri-fluoro-leakeite | 
  R070468 | 
  NaNa2(Fe2+2Fe3+2Li)Si8O22F2 | 
  Michael Scott S100582 | 
  Questa, Taos County, New Mexico, USA | 
  
           
   | 
   | 
   | Ferro-ferri-hornblende | 
  R170006 | 
  ◻Ca2(Fe2+4Fe3+)(Si7Al)O22(OH)2 | 
  Renato and Adriana Pagano  | 
  Miniera di Traversella, Ivrea, Torino, Piedmont, Italy | 
  
           
   | 
   | 
   | Ferro-gedrite | 
  R060330 | 
  ◻Fe2+2(Fe2+3Al2)(Si6Al2)O22(OH)2 | 
  Michael Scott S100310 | 
  Kawai mine, Ena City, Gifu Prefecture, Japan | 
  
           
   | 
   | 
   | Ferro-gedrite | 
  R070531 | 
  ◻Fe2+2(Fe2+3Al2)(Si6Al2)O22(OH)2 | 
  James Shigley  | 
  Ludvika, Dalarna District, Kopparberg, Sweden | 
  
           
   | 
   | 
   | Ferro-holmquistite | 
  R070005 | 
  ◻Li2(Fe2+3Al2)Si8O22(OH)2 | 
  Michael Scott S101201 | 
  Mount Marrion, South Australia, Australia | 
  
           
   | 
   | 
   | Ferro-katophorite | 
  R050633 | 
  Na(NaCa)(Fe2+4Al)(Si7Al)O22(OH)2 | 
  Marcus Origlieri  | 
  Taguchi mine, Shidara, Kitashidara-Gun, Aichi Prefecture, Japan | 
  
           
   | 
   | 
   | Ferro-pargasite | 
  R090015 | 
  NaCa2(Fe2+4Al)(Si6Al2)O22(OH)2 | 
  Herb Obodda  | 
  Basha Valley, Skardu District, Baltistan, Northern Areas, Pakistan | 
  
           
   | 
   | 
   | Ferroalluaudite | 
  R100070 | 
  NaFe2+Fe3+2(PO4)3 | 
  Royal Ontario Museum  | 
  Rapid Creek area, Yukon, Canada | 
  
           
   | 
   | 
   | Ferrobobfergusonite | 
  R140993 | 
  ◻Na2Fe2+5Fe3+Al(PO4)6 | 
  Rock Currier  | 
  Victory mine, Custer, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Ferrobustamite | 
  R140843 | 
  CaFe2+Si2O6 | 
  Michael Scott S106010 | 
  Horado mine, Gifu Prefecture, Chubu Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Ferroceladonite | 
  R070442 | 
  KFe2+Fe3+Si4O10(OH)2 | 
  Michael Scott S104918 | 
  Gravel Quarry, Mikhailov, Ryazanskaya Oblast', North-Western Region, Russia | 
  
           
   | 
   | 
   | Ferroericssonite | 
  R070406 | 
  BaFe2+2Fe3+(Si2O7)O(OH) | 
  Michael Scott S104468 | 
  Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Ferrofettelite | 
  R100124 | 
  [Ag6As2S7][Ag10FeAs2S8] | 
  William W. Pinch  | 
  Nieder-Berbach, Odenwald, Germany | 
  
           
   | 
   | 
   | Ferrohögbomite-2N2S | 
  R061017 | 
  (Fe,Mg,Zn,Al)3(Al,Ti,Fe)8O15(OH) | 
  Michael Scott S101479 | 
  Claim Kastor, Vallatjvaratj, Lapland, Sweden | 
  
           
   | 
   | 
   | Ferrohögbomite-2N2S | 
  R070156 | 
  (Fe,Mg,Zn,Al)3(Al,Ti,Fe)8O15(OH) | 
  James Shigley  | 
  Norway | 
  
           
   | 
   | 
   | Ferrokentbrooksite | 
  R110183 | 
  Na15Ca6Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2 | 
  Donald Doell  | 
  Poudrette quarry, Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Ferrokësterite | 
  R060870 | 
  Cu2FeSnS4 | 
  Michael Scott S101027 | 
  Cligga mine, Perranzabuloe, Cornwall, England | 
  
           
   | 
   | 
   | Ferrokësterite | 
  R110173 | 
  Cu2FeSnS4 | 
  Brian Kosnar  | 
  San Jose mine, Oruro, Bolivia | 
  
           
   | 
   | 
   | Ferronigerite-2N1S | 
  R120083 | 
  (Al,Fe,Zn)2(Al,Sn)6O11(OH) | 
  Robert Jenkins  | 
  Seixoso quarry, Lixa, Portugal | 
  
           
   | 
   | 
   | Ferronordite-(Ce) | 
  R130528 | 
  Na3SrCeFe2+Si6O17 | 
  Rock Currier  | 
  Bolshoi Punkaruaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Ferroselite | 
  R070461 | 
  FeSe2 | 
  Michael Scott S105137 | 
  Virgin No. 3 mine, Paradox Valley, Uravan District,  Montrose County, Colorado, USA | 
  
           
   | 
   | 
   | Ferrosilite | 
  X050187 | 
  Fe2+2Si2O6 | 
  Caltech 418 | 
  unknown | 
  
           
   | 
   | 
   | Ferrosilite | 
  R070386 | 
  Fe2+2Si2O6 | 
  Subrata Ghose, collected by Ramberg  | 
  Greenland | 
  
           
   | 
   | 
   | Ferrosilite | 
  R070387 | 
  Fe2+2Si2O6 | 
  Jibamitra Ganguly  | 
  Central Gneissic Complex (Khtada Lake), British Columbia, Canada | 
  
           
   | 
   | 
   | Ferrostrunzite | 
  R100079 | 
  Fe2+Fe3+2(PO4)2(OH)2·6H2O | 
  Jeff Weissman  | 
  Hornerstown, Monmouth County, New Jersey, USA | 
  
           
   | 
   | 
   | Ferrowodginite | 
  R120166 | 
  Fe2+Sn4+Ta2O8 | 
  Rock Currier  | 
  Nyanga #2 pegmatite, Ankloe, Uganda | 
  
           
   | 
   | 
   | Ferrowyllieite | 
  X050078 | 
  NaNaFe2+(Fe2+Al)(PO4)3 | 
  Caltech  | 
   | 
  
           
   | 
   | 
   | Ferrowyllieite | 
  R060178 | 
  NaNaFe2+(Fe2+Al)(PO4)3 | 
  Marcus Origlieri  | 
  Victory mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Ferrowyllieite | 
  R160068 | 
  NaNaFe2+(Fe2+Al)(PO4)3 | 
  James Shigley  | 
  Victory mine, near Custer, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Fersmanite | 
  R070290 | 
  Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 | 
  Michael Scott S103435 | 
  Vein No. 1 of Labuntsov, 3rd left tributary of Vuonnemijok river, Eveslogchorr Mt, Khibiny Massif, Kola peninsula, Murmanskaja oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Fersmite | 
  R060717 | 
  CaNb2O6 | 
  Michael Scott S101205 | 
  Lueshe carbonatite, Kivu Province, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Feruvite | 
  R061109 | 
  CaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH) | 
  Michael Scott S104927 | 
  Red Cross Lake, Manitoba, Canada | 
  
           
   | 
   | 
   | Fetiasite | 
  R100014 | 
  (Fe2+,Fe3+,Ti4+)3O2As3+2O5 | 
  William Pinch  | 
  Gorb, Binnental, Valais, Switzerland | 
  
           
   | 
   | 
   | Fettelite | 
  R100083 | 
  [Ag6As2S7][Ag10HgAs2S8] | 
  William W Pinch  | 
  Chanarcillo, Chile | 
  
           
   | 
   | 
   | Fettelite | 
  R110042 | 
  [Ag6As2S7][Ag10HgAs2S8] | 
  Institute of Mineralogy, University of Heidelberg  | 
  Nieder-Beerbach mine near Darmstadt, Odenwald, Germany | 
  
           
   | 
   | 
   | Fianelite | 
  R220039 | 
  Mn2+2V2O7·2H2O | 
  Philippe Roth  | 
  Fianel mine, Val Ferrera, Grisons, Switzerland | 
  
           
   | 
   | 
   | Fibroferrite | 
  R061076 | 
  Fe3+(SO4)(OH)·5H2O | 
  Michael Scott S101327 | 
  Cyprus | 
  
           
   | 
   | 
   | Fichtelite | 
  R190001 | 
  C19H34 | 
  Stefan Schorn  | 
  Moor Bad Feilnbach, Bavaria , Germany | 
  
           
   | 
   | 
   | Fiedlerite | 
  R060859 | 
  Pb3Cl4F(OH)·H2O | 
  Michael Scott S100918 | 
  Laurium, Attica, Greece | 
  
           
   | 
   | 
   | Filatovite | 
  R070030 | 
  K(Al,Zn)2(As,Si)2O8 | 
  Michael Scott S105093 | 
  Great Tolbachik Eruption (1976), Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Fillowite | 
  R110143 | 
  Na3CaMn2+11(PO4)9 | 
  Donald M Doell   | 
  Gottcha claim, Cross Lake, Manitoba, Canada | 
  
           
   | 
   | 
   | Fingerite | 
  R070614 | 
  Cu11O2(VO4)6 | 
  Michael Scott S103064 | 
  Izalco Volcano, Sonsonate Department, El Salvador | 
  
           
   | 
   | 
   | Finnemanite | 
  R140335 | 
  Pb5(As3+O3)3Cl | 
  Rock Currier  | 
  Långban, Filipstad, Värmland, Sweden | 
  
           
   | 
   | 
   | Finnemanite | 
  R140329 | 
  Pb5(As3+O3)3Cl | 
  Benjamin N. Schumer  | 
  Långban, Varmland, Sweden | 
  
           
   | 
   | 
   | Fizélyite | 
  R060175 | 
  Ag5Pb14Sb21S48 | 
  Ty Balacko TB2 | 
  Van Silver mine, Squamish, British Columbia, Canada | 
  
           
   | 
   | 
   | Fizélyite | 
  R090068 | 
  Ag5Pb14Sb21S48 | 
  Mark N. Feinglos  | 
  Herja(Kisbanya), Romania | 
  
           
   | 
   | 
   | Flaggite | 
  R210026 | 
  Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O) | 
  Anthony Kampf  | 
  Grand Central mine, Tombstone district, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Flamite | 
  R150148 | 
  Ca8-x(Na,K)x(SiO4)4-x(PO4)x | 
  S.V. Goryainov  | 
  The southern Hatrurim Basin, the Negev Desert, Israel | 
  
           
   | 
   | 
   | Fleischerite | 
  R120043 | 
  Pb3Ge(SO4)2(OH)6·3H2O | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Flörkeite | 
  R141068 | 
  (K3Ca2Na)[Al8Si8O32]·12H2O | 
  Ch. and H. Schäfer  | 
  Seekante, Mayener Feld, Southern lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Fluckite | 
  R130556 | 
  CaMn2+(AsO3OH)2·2H2O | 
  Rock Currier  | 
  Alsace, France | 
  
           
   | 
   | 
   | Fluellite | 
  R070473 | 
  Al2(PO4)F2(OH)·7H2O | 
  Michael Scott S105146 | 
  Gold Quarry mine (Maggie claims), Maggie Creek District, Eureka County, Nevada, USA | 
  
           
   | 
   | 
   | Fluoborite | 
  R061042 | 
  Mg3(BO3)F3 | 
  Royal Ontario Museum M52521 | 
  Kinmount, Ontario, Canada | 
  
           
   | 
   | 
   | Fluocerite-(Ce) | 
  R110058 | 
  CeF3 | 
  Rudy Bolona and Don Doell  | 
  Little Patsy pegmatite, South Platte Pegmatite District, Jefferson County, Colorado, USA | 
  
           
   | 
   | 
   | Fluor-buergerite | 
  R060132 | 
  NaFe3+3Al6(Si6O18)(BO3)3O3F | 
  University of Arizona Mineral Museum 13422 | 
  20 km. south of San Luis Potasi, Mexico | 
  
           
   | 
   | 
   | Fluor-dravite | 
  R110031 | 
  NaMg3Al6(Si6O18)(BO3)3(OH)3F | 
  William W Pinch  | 
  Kefalos Hill, Skotini Bay, Galissas, Syros Island, Aegean Sea, Greece | 
  
           
   | 
   | 
   | Fluor-elbaite | 
  R130035 | 
  Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F | 
  William W. Pinch  | 
  Aqueana pegmatite, Aracuai, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluor-liddicoatite | 
  R060635 | 
  Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F | 
  Gemological Institute of America 06 | 
  unknown | 
  
           
   | 
   | 
   | Fluor-liddicoatite | 
  R060969 | 
  Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F | 
  Michael Scott S100388 | 
  Antandro Komby mine, Manandona River, Antsirabe, Madagascar | 
  
           
   | 
   | 
   | Fluor-uvite | 
  R050172 | 
  CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F | 
  Marcus Origlieri  | 
  Pierrepont, New York, USA | 
  
           
   | 
   | 
   | Fluor-uvite | 
  R050301 | 
  CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F | 
  Eugene Schlepp  | 
  Brumado, Bahia, Brazil | 
  
           
   | 
   | 
   | Fluor-uvite | 
  R100151 | 
  CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F | 
  William W. Pinch  | 
  Mozambique | 
  
           
   | 
   | 
   | Fluor-uvite | 
  R100154 | 
  CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Fluorapatite | 
  R040098 | 
  Ca5(PO4)3F | 
  Marcus Origlieri  | 
  Cerro de Mercado mine, Durango, Mexico | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050122 | 
  Ca5(PO4)3F | 
  Carlos and Paulo Vasconcelos  | 
  Cruziero mine, San Jose, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050194 | 
  Ca5(PO4)3F | 
  Dave Bunk Minerals  | 
  Siglo XX mine, Llallagua, Bolivia | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050192 | 
  Ca5(PO4)3F | 
  Dave Bunk Minerals  | 
  Fulford, Eagle County, Colorado, USA | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050274 | 
  Ca5(PO4)3F | 
  Marcus Origlieri  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluorapatite | 
  R060070 | 
  Ca5(PO4)3F | 
  Dave Bunk  | 
  Panasqueira, Portugal | 
  
           
   | 
   | 
   | Fluorapatite | 
  X050079 | 
  Ca5(PO4)3F | 
  Caltech  | 
  Durango, Mexico | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050340 | 
  Ca5(PO4)3F | 
  California Institute of Technology W-22416 | 
  Buckingham, Quebec, Canada | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050369 | 
  Ca5(PO4)3F | 
  Eugene Schlepp  | 
  Russia | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050401 | 
  Ca5(PO4)3F | 
  Bob Downs  | 
  Urbano mine, Golconda District, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050529 | 
  Ca5(PO4)3F | 
  University of Arizona Mineral Museum 3007 | 
  Limburg de an Lahn, Germany | 
  
           
   | 
   | 
   | Fluorapatite | 
  R050617 | 
  Ca5(PO4)3F | 
  University of Arizona Mineral Museum 12013 | 
  Santa Cruz, Sonora, Mexico | 
  
           
   | 
   | 
   | Fluorapatite | 
  R060184 | 
  Ca5(PO4)3F | 
  Lloyd Twaites  | 
  Yates mine, Otter Lake, Quebec, Canada | 
  
           
   | 
   | 
   | Fluorapatite | 
  R060333 | 
  Ca5(PO4)3F | 
  Michael Scott S100044 | 
  Lovozero Massif, Kola Peninsula, U.S.S.R. | 
  
           
   | 
   | 
   | Fluorapatite | 
  R060421 | 
  Ca5(PO4)3F | 
  Michael Scott S100073 | 
  Levant mine, St. Just, Cornwall, England | 
  
           
   | 
   | 
   | Fluorapophyllite-(K) | 
  R040095 | 
  KCa4Si8O20F·8H2O | 
  University of Arizona Mineral Museum 6031 | 
  unknown | 
  
           
   | 
   | 
   | Fluorapophyllite-(K) | 
  R050021 | 
  KCa4Si8O20F·8H2O | 
  Eugene Schlepp  | 
  Poona, Maharashtra State, India | 
  
           
   | 
   | 
   | Fluorapophyllite-(K) | 
  R050084 | 
  KCa4Si8O20F·8H2O | 
  Rock Currier  | 
  near Ahmednagar, Maharashtra, India | 
  
           
   | 
   | 
   | Fluorapophyllite-(K) | 
  R060554 | 
  KCa4Si8O20F·8H2O | 
  Gemological Institute of America 20 | 
  unknown | 
  
           
   | 
   | 
   | Fluorbritholite-(Ce) | 
  R070412 | 
  (Ce,Ca)5(SiO4)3F | 
  Michael Scott S105556 | 
  Lakarp, Norra Kärr, Gränna, Jönköping, Småland, Sweden | 
  
           
   | 
   | 
   | Fluorcalciobritholite | 
  R141089 | 
  (Ca,REE)5(SiO4,PO4)3F | 
  Ch. and H. Schäfer  | 
  In den Dellen, Laach lake volcano, Mendig, Eifel, Germany | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R050625 | 
  (Ca,Na,◻)2Ta2O6F | 
  Gemological Center  | 
  Urubu mine, Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R070100 | 
  (Ca,Na,◻)2Ta2O6F | 
  Michael Scott S101220 | 
  Urucum mine, near Galilea, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R070365 | 
  (Ca,Na,◻)2Ta2O6F | 
  Michael Scott S104775 | 
  Ponte da Raiz mine, Minas Gerais, Southeast Brazil | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R080146 | 
  (Ca,Na,◻)2Ta2O6F | 
  Luiz Menezes  | 
   Ipé mine, Governador, Valadares, Minas Gerias, Brazil | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R090008 | 
  (Ca,Na,◻)2Ta2O6F | 
  Herb Obodda  | 
  Shigar Valley, Skardu District, Baltistan, Northern areas, Pakistan | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R120127 | 
  (Ca,Na,◻)2Ta2O6F | 
  Marcelo Barbosa de Andrade  | 
  Volta Grande pegmatites (Volta Grande mine), Nazareno, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R120163 | 
  (Ca,Na,◻)2Ta2O6F | 
  Marcus Origlieri  | 
  Alto Ligonha, Mozambique | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R130019 | 
  (Ca,Na,◻)2Ta2O6F | 
  Royal Ontario Museum M35101 | 
  Virgem da Lapa, Minas Gerais, Brazil  | 
  
           
   | 
   | 
   | Fluorcalciomicrolite | 
  R130022 | 
  (Ca,Na,◻)2Ta2O6F | 
  Royal Ontario Museum M28607 | 
  Emdal mines, Muiane, Mozambique | 
  
           
   | 
   | 
   | Fluorcalciopyrochlore | 
  R060288 | 
  (Ca,Na)2(Nb,Ti)2O6F | 
  Herb Obodda 090 | 
  Tatarka River, Krasnoyarskiy Kray, Siberia, Russia | 
  
           
   | 
   | 
   | Fluorcalciopyrochlore | 
  R061003 | 
  (Ca,Na)2(Nb,Ti)2O6F | 
  Michael Scott S101331 | 
  Verity property, Blue River, British Columbia, Canada | 
  
           
   | 
   | 
   | Fluorcalciopyrochlore | 
  R110198 | 
  (Ca,Na)2(Nb,Ti)2O6F | 
  Donald Doell  | 
  St Lawrence Columbium mine, Oka complex, Oka, Quebec, Canada | 
  
           
   | 
   | 
   | Fluorcalcioroméite | 
  R120140 | 
  (Ca,Na)2Sb5+2O6F | 
  Marcelo Andrade  | 
  Starlera mine, Starlera Valley, Ferrera, Hinterrhein district, Grishun, Switzerland | 
  
           
   | 
   | 
   | Fluorcarletonite | 
  R180028 | 
  KNa4Ca4Si8O18(CO3)4F·H2O | 
  Ekaterina Kaneva  | 
  Murun massif, northwestern part of the Aldan Shield, Siberia, Russia | 
  
           
   | 
   | 
   | Fluorcarmoite-(BaNa) | 
  R220045 | 
  Ba◻Na2Na2◻CaMg13Al(PO4)11(PO3OH)F2 | 
  Fernando Cámara  | 
  Riverbed of the upper Maremola Creek, Isallo, Savona, Liguria, Italy | 
  
           
   | 
   | 
   | Fluorellestadite | 
  R130124 | 
  Ca5(SiO4)1.5(SO4)1.5F | 
  Rock Currier  | 
  Kopeisk, South Urals, Russia | 
  
           
   | 
   | 
   | Fluorite | 
  R040099 | 
  CaF2 | 
  Bob Downs  | 
  Rock Candy mine, Grand Forks, British Columbia, Canada | 
  
           
   | 
   | 
   | Fluorite | 
  R050045 | 
  CaF2 | 
  Eugene Schlepp  | 
  Hunan Province, China | 
  
           
   | 
   | 
   | Fluorite | 
  R050046 | 
  CaF2 | 
  Eugene Schlepp  | 
  Shangbao, Lei Yang, Hunan Province, China | 
  
           
   | 
   | 
   | Fluorite | 
  R050115 | 
  CaF2 | 
  Syed Shah  | 
  Isthak Valley Iskardu, N.A. Gilgit, Pakistan | 
  
           
   | 
   | 
   | Fluorite | 
  R060548 | 
  CaF2 | 
  Gemological Institute of America 18 | 
  unknown | 
  
           
   | 
   | 
   | Fluorlamprophyllite | 
  R130421 | 
  (SrNa)Ti2Na3Ti(Si2O7)2O2F2 | 
  Gunnar Farber  | 
  Pocos de Caldas Plateau, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Fluornatromicrolite | 
  R060589 | 
  (Na1.5Bi0.5)Ta2O6F | 
  Michael Scott S100787 | 
  Quixaba mine, Frei Martinho, Paraíba, Northeast Region, Brazil | 
  
           
   | 
   | 
   | Fluornatromicrolite | 
  R130021 | 
  (Na1.5Bi0.5)Ta2O6F | 
  Royal Ontario Museum M47080 | 
  Fisher’s Ledge, Topsham, Maine, USA. | 
  
           
   | 
   | 
   | Fluoro-edenite | 
  R070003 | 
  NaCa2Mg5(Si7Al)O22F2 | 
  Michael Scott S103392 | 
  Cobden, Ontario, Canada | 
  
           
   | 
   | 
   | Fluoro-richterite | 
  R040019 | 
  Na(NaCa)Mg5Si8O22F2 | 
  University of Arizona Mineral Museum 11037 | 
  Wilberforce, Ontario, Canada | 
  
           
   | 
   | 
   | Fluoro-richterite | 
  R060290 | 
  Na(NaCa)Mg5Si8O22F2 | 
  Herb Obodda 066 | 
  Koschka Valley, Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Fluorophlogopite | 
  R040039 | 
  KMg3(Si3Al)O10F2 | 
  University of Arizona Mineral Museum 4635 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Fluorophlogopite | 
  R040042 | 
  KMg3(Si3Al)O10F2 | 
  University of Arizona Mineral Museum 9378 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Fluorophlogopite | 
  R040075 | 
  KMg3(Si3Al)O10F2 | 
  University of Arizona Mineral Museum 1429 | 
  unknown | 
  
           
   | 
   | 
   | Foitite | 
  R050356 | 
  ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  George Rossman  | 
  Fano mine, Cahuilla Mountain, Riverside County, California, USA | 
  
           
   | 
   | 
   | Foitite | 
  R050495 | 
  ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  California Institute of Technology W-20793 | 
  Coahuila Mountain, California, USA | 
  
           
   | 
   | 
   | Foitite | 
  R100088 | 
  ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Mark Mauthner  | 
  Oceanview mine, Chief Mountain, Pala District, San Diego County, California, USA | 
  
           
   | 
   | 
   | Foordite | 
  R130012 | 
  Sn2+Nb2O6 | 
  Michael Scott S101429 | 
  Manono, Shaba, Congo | 
  
           
   | 
   | 
   | Footemineite | 
  R090005 | 
  Ca2Mn2+5Be4(PO4)6(OH)4·6H2O | 
  Luiz Menezes  | 
  Foote mine, North Carolina, USA | 
  
           
   | 
   | 
   | Fornacite | 
  R060932 | 
  CuPb2(CrO4)(AsO4)(OH) | 
  Bob Jenkins  | 
  Tiger, Arizona, USA | 
  
           
   | 
   | 
   | Fornacite | 
  R060986 | 
  CuPb2(CrO4)(AsO4)(OH) | 
  Bob Jenkins  | 
  Tombstone, Arizona, USA | 
  
           
   | 
   | 
   | Forsterite | 
  R040018 | 
  Mg2(SiO4) | 
  Bob Downs  | 
  Trudy's mine, San Carlos, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Forsterite | 
  R040052 | 
  Mg2(SiO4) | 
  Hideki Kanazawa of Kyoto University, Japan  | 
  Synthetic, Czochralski method | 
  
           
   | 
   | 
   | Forsterite | 
  R040057 | 
  Mg2(SiO4) | 
  Bob Downs  | 
  Trudy's mine, San Carlos, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Forsterite | 
  R050117 | 
  Mg2(SiO4) | 
  Farooq and Nazia Sawal  | 
  Sapat, Gilgit, Pakistan | 
  
           
   | 
   | 
   | Forsterite | 
  X050080 | 
  Mg2(SiO4) | 
  G.R. Rossman 1017 | 
  synthetic end member | 
  
           
   | 
   | 
   | Forsterite | 
  X050081 | 
  Mg2(SiO4) | 
  G.R. Rossman 1000 | 
  East Africa | 
  
           
   | 
   | 
   | Forsterite | 
  X050082 | 
  Mg2(SiO4) | 
  G.R. Rossman 1001 | 
  Morales | 
  
           
   | 
   | 
   | Forsterite | 
  X050085 | 
  Mg2(SiO4) | 
  G.R. Rossman 889 | 
  Zabargad | 
  
           
   | 
   | 
   | Forsterite | 
  X050086 | 
  Mg2(SiO4) | 
  G.R. Rossman 1345 | 
  Sri Lanka | 
  
           
   | 
   | 
   | Forsterite | 
  X050087 | 
  Mg2(SiO4) | 
  G.R. Rossman 1107 | 
  China | 
  
           
   | 
   | 
   | Forsterite | 
  X050088 | 
  Mg2(SiO4) | 
  Caltech  | 
  San Carlos, Arizona, USA | 
  
           
   | 
   | 
   | Forsterite | 
  X050089 | 
  Mg2(SiO4) | 
  RD Shannon 62047- 46 | 
   | 
  
           
   | 
   | 
   | Forsterite | 
  X050090 | 
  Mg2(SiO4) | 
  Caltech  | 
  San Carlos, Arizona, USA | 
  
           
   | 
   | 
   | Forsterite | 
  R060539 | 
  Mg2(SiO4) | 
  Gemological Institute of America 19488 | 
  Sri Lanka | 
  
           
   | 
   | 
   | Forsterite | 
  R060535 | 
  Mg2(SiO4) | 
  Gemological Institute of America 3600 | 
  unknown | 
  
           
   | 
   | 
   | Forsterite | 
  R060551 | 
  Mg2(SiO4) | 
  Gemological Institute of America 25 | 
  Kohiston, Pakistan | 
  
           
   | 
   | 
   | Forsterite | 
  R100099 | 
  Mg2(SiO4) | 
  American Museum of Natural History 110942 | 
  Synthetic | 
  
           
   | 
   | 
   | Forsterite | 
  R100100 | 
  Mg2(SiO4) | 
  American Museum of Natural History 75382 | 
  Scott Creek, Jackson County,  North Carolina, USA | 
  
           
   | 
   | 
   | Forsterite | 
  R100101 | 
  Mg2(SiO4) | 
  American Museum of Natural History 75156 | 
  Yancey County,  North Carolina, USA | 
  
           
   | 
   | 
   | Forsterite | 
  R100140 | 
  Mg2(SiO4) | 
  William W. Pinch  | 
  Pakistan | 
  
           
   | 
   | 
   | Foshagite | 
  R070098 | 
  Ca4(SiO3)3(OH)2 | 
  Michael Scott S101319 | 
  Crestmore, Califonia, USA | 
  
           
   | 
   | 
   | Fourmarierite | 
  R100187 | 
  Pb1-xO3-2x(UO2)4(OH)4+2x·4H2O | 
  James Shigley  | 
  Shinkolobwe mine, Kasolo, Katanga, Congo | 
  
           
   | 
   | 
   | Francevillite | 
  R070159 | 
  Ba(UO2)2(VO4)2·5H2O | 
  James Shigley  | 
  Mounana mine, Franceville, Haut-Ogooue, Gabon | 
  
           
   | 
   | 
   | Franciscanite | 
  R060056 | 
  Mn2+6(V5+◻)(SiO4)2O3(OH)3 | 
  Marcus Origlieri  | 
  Pennsylvania mine, Santa Clara County, California, USA | 
  
           
   | 
   | 
   | Franckeite | 
  R060946 | 
  Pb21.7Sn9.3Fe4.0Sb8.1S56.9 | 
  Lloyd Twaites  | 
  Hoei tin mine, Kyushu Island, Japan | 
  
           
   | 
   | 
   | Franckeite | 
  R140342 | 
  Pb21.7Sn9.3Fe4.0Sb8.1S56.9 | 
  James Shigley  | 
  Pacific Limestone Products Quarry, near Santa Cruz, Santa Cruz County, California, USA | 
  
           
   | 
   | 
   | Franconite | 
  R110185 | 
  NaNb2O5(OH)·3H2O | 
  Donald Doell  | 
  Poudrette quarry, Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Frankamenite | 
  R060100 | 
  K3Na3Ca5Si12O30F3(OH)·H2O | 
  University of Arizona Mineral Museum 16842 | 
  Murun Massif, Sakka, Yakutia, Russia | 
  
           
   | 
   | 
   | Franklinite | 
  R070137 | 
  ZnFe3+2O4 | 
  Michael Scott S100420 | 
  Franklin mine, Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Franksousaite | 
  R210012 | 
  PbCu(Se6+O4)(OH)2 | 
  Jim McGlasson #9213 | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Fredrikssonite | 
  R130112 | 
  Mg2Mn3+O2(BO3) | 
  Rock Currier  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Freieslebenite | 
  R060174 | 
  AgPbSbS3 | 
  Ty Balacko, TB 3 | 
  Van Silver mine, Vancouver, British Columbia, Canada | 
  
           
   | 
   | 
   | Fresnoite | 
  R050595 | 
  Ba2TiO(Si2O7) | 
  Scott Kleine  | 
  Junnila claim, Clear Creek area, New Idria district, San Benito County, California, USA | 
  
           
   | 
   | 
   | Friedelite | 
  R060364 | 
  Mn2+8Si6O15(OH)10 | 
  Herb Obodda 037 | 
  Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Friedelite | 
  R070085 | 
  Mn2+8Si6O15(OH)10 | 
  Bob Jenkins  | 
  Sterling Hill mine, Ogdensburg, New Jersey, USA | 
  
           
   | 
   | 
   | Frolovite | 
  R070469 | 
  Ca[B(OH)4]2 | 
  Michael Scott S105794 | 
  Solongo B deposit, Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Frondelite | 
  R050622 | 
  (Mn2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 | 
  University of Arizona Mineral Museum 2647 | 
  Hagendorf, Bavaria, Germany | 
  
           
   | 
   | 
   | Froodite | 
  R070459 | 
  PdBi2 | 
  Michael Scott S105003 | 
  Oktyabr'sky mine, Noril'sk, Putoran Mountains, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Furutobeite | 
  R060937 | 
  (Cu,Ag)6PbS4 | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Gadolinite-(Y) | 
  R060351 | 
  Y2Fe2+Be2O2(SiO4)2 | 
  Herb Obodda 031 | 
  Hittero, Vest-Agder, Norway | 
  
           
   | 
   | 
   | Gadolinite-(Y) | 
  R070340 | 
  Y2Fe2+Be2O2(SiO4)2 | 
  Michael Scott S103589 | 
  Ytterøya Mine, Røvika, Ytterøya (island), Levanger, Nord-Trøndelag, Norway | 
  
           
   | 
   | 
   | Gadolinite-(Y) | 
  R080129 | 
  Y2Fe2+Be2O2(SiO4)2 | 
  Michael Scott S103589 | 
  Ytterøya mine, Røvika, Ytterøya (island), Levanger, Nord-Trøndelag, Norway | 
  
           
   | 
   | 
   | Gadolinite-(Y) | 
  R120138 | 
  Y2Fe2+Be2O2(SiO4)2 | 
  William Shelton  | 
  Ytterby, Uppland, Sweden | 
  
           
   | 
   | 
   | Gadolinium gallium garnet | 
  X090005 | 
   | 
  Gemological Institute of America 11872 | 
  Synthetic | 
  
           
   | 
   | 
   | Gadolinium gallium garnet | 
  X090006 | 
   | 
  Gemological Institute of America 15729 | 
  Synthetic | 
  
           
   | 
   | 
   | Gadolinium gallium garnet | 
  X090007 | 
   | 
  Gemological Institute of America 11883 | 
  Synthetic | 
  
           
   | 
   | 
   | Gadolinium gallium garnet | 
  R110102 | 
   | 
  Gemological Institute of America 10-12-2010-7 | 
  Synthetic | 
  
           
   | 
   | 
   | Gagarinite-(Y) | 
  R060517 | 
  NaCaYF6 | 
  Michael Scott S100305 | 
  Gjerdingen, Nordmark, north of Oslo, Norway | 
  
           
   | 
   | 
   | Gageite | 
  R070471 | 
  Mn2+21Si8O27(OH)20 | 
  Michael Scott S101448 | 
  Wessels mine, Hotazel, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Gahnite | 
  R040027 | 
  ZnAl2O4 | 
  University of Arizona Mineral Museum 11402 | 
  Rowe, Franklin County, Massachusetts, USA | 
  
           
   | 
   | 
   | Gahnite | 
  X060004 | 
  ZnAl2O4 | 
  University of Arizona Mineral Museum 3698 | 
  Claremont, Massachusetts, USA | 
  
           
   | 
   | 
   | Gahnite | 
  R070591 | 
  ZnAl2O4 | 
  James Shigley  | 
  Jemaa, Kaduna, Nigeria | 
  
           
   | 
   | 
   | Gahnite | 
  R170037 | 
  ZnAl2O4 | 
  Rock Currier  | 
  Silberberg mine, Bodenmais, Zwiesel, Bavarian Forest, Lower Bavaria, Bavaria, Germany | 
  
           
   | 
   | 
   | Gaidonnayite | 
  R070472 | 
  Na2ZrSi3O9·2H2O | 
  Michael Scott S104410 | 
  Poudrette quarry, Mont Saint-Hilaire, Rouville County, Québec, Canada | 
  
           
   | 
   | 
   | Gaidonnayite | 
  R140540 | 
  Na2ZrSi3O9·2H2O | 
  Luiz Menezes  | 
  Prefeitura quarry, Pocos de Caldas, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Gaitite | 
  R130625 | 
  Ca2Zn(AsO4)2·2H2O | 
  Rock Currier  | 
  Municipio de Pitiquito, Sonora, Mexico | 
  
           
   | 
   | 
   | Galaxite | 
  R140320 | 
  Mn2+Al2O4 | 
  Lyle Gordon  | 
  Bald Knob deposit, Bald Knob, Sparta, Alleghany County, North Carolina, USA | 
  
           
   | 
   | 
   | Galeite | 
  R130025 | 
  Na15(SO4)5ClF4 | 
  Marcus Origlieri  | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Galeite | 
  R160078 | 
  Na15(SO4)5ClF4 | 
  Rock Currier  | 
  Searles Lake, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Galena | 
  R060187 | 
  PbS | 
  Lloyd Twaites  | 
  Polaris mine, Little Cornwallis Island, Northwest Territories, Canada | 
  
           
   | 
   | 
   | Galena | 
  R070325 | 
  PbS | 
  James Shigley  | 
  Cumberland, England | 
  
           
   | 
   | 
   | Galenobismutite | 
  R110057 | 
  PbBi2S4 | 
  William W Pinch  | 
  Vena Cobalt mines, Bergslagen, Sweden | 
  
           
   | 
   | 
   | Galkhaite | 
  R070394 | 
  (Hg5Cu)CsAs4S12 | 
  Michael Scott S104412 | 
  Getchell Mine, Adam Peak, Potosi District, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Galuskinite | 
  R130076 | 
  Ca7(SiO4)3(CO3) | 
  Thomas Ambruster  | 
  Birkhin gabbro massif, Eastern Siberia, Russia | 
  
           
   | 
   | 
   | Gamagarite | 
  R130111 | 
  Ba2Fe3+(VO4)2(OH) | 
  Don Doell (Small piece), Rock Currier (Large piece)  | 
  Molinello mine, Graveglia Valley, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Ganomalite | 
  R050387 | 
  Pb9Ca6(Si2O7)4(SiO4)O | 
  University of Arizona Mineral Museum 13168 | 
  Sells, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Garnet | 
  R141191 | 
   | 
  Yuntao Wu #177 | 
  Synthetic | 
  
           
   | 
   | 
   | Garronite-Ca | 
  R050281 | 
  Ca3(Al6Si10O32)·14H2O | 
  Marcus Origlieri  | 
  Pete's Point, Aneroid Lake, Wallowa County, Oregon, USA | 
  
           
   | 
   | 
   | Gartrellite | 
  R060881 | 
  PbCuFe3+(AsO4)2(OH)·H2O | 
  Bob Jenkins  | 
  Ashburton Downs, Western Australia | 
  
           
   | 
   | 
   | Gaspéite | 
  R040157 | 
  Ni(CO3) | 
  University of Arizona Mineral Museum 10112 | 
  Lemieux Township, Gaspe Nord County, Gaspe Peninsula, Quebec, Canada | 
  
           
   | 
   | 
   | Gaspéite | 
  R060366 | 
  Ni(CO3) | 
  Herb Obodda 011 | 
  Pilbara Region, Western Australia, Australia | 
  
           
   | 
   | 
   | Gatumbaite | 
  R070388 | 
  CaAl2(PO4)2(OH)2·H2O | 
  Michael Scott S104683 | 
  Buranga pegmatite, Gatumba District, Gisenyi Province, Rwanda | 
  
           
   | 
   | 
   | Gaudefroyite | 
  R050675 | 
  Ca4Mn3+3(BO3)3(CO3)O3 | 
  University of Arizona Mineral Museum 14749 | 
  Wessels mine, Cape Province, South Africa | 
  
           
   | 
   | 
   | Gaylussite | 
  R040146 | 
  Na2Ca(CO3)2·5H2O | 
  University of Arizona Mineral Museum 13258 | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Gearksutite | 
  R050657 | 
  CaAlF4(OH)·H2O | 
  University of Arizona Mineral Museum 13284 | 
  Jamestown, Colorado, USA | 
  
           
   | 
   | 
   | Gedrite | 
  R050339 | 
  ◻Mg2(Mg3Al2)(Si6Al2)O22(OH)2 | 
  California Institute of Technology W-203 | 
  Bamble, Telemark, Norway | 
  
           
   | 
   | 
   | Gehlenite | 
  R060841 | 
  Ca2Al(SiAl)O7 | 
  Michael Scott S101000 | 
  Monzoni, Tyrol, Italy | 
  
           
   | 
   | 
   | Gehlenite | 
  R061091 | 
  Ca2Al(SiAl)O7 | 
  Michael Scott S101599 | 
  Carneal Plug, Glenoe Larne District, County Antrim, Northern Ireland | 
  
           
   | 
   | 
   | Gehlenite | 
  R070478 | 
  Ca2Al(SiAl)O7 | 
  Michael Scott S104474 | 
  Durham Ranch, South of Gillette, Sublette County, Wyoming, USA | 
  
           
   | 
   | 
   | Geikielite | 
  R070479 | 
  MgTiO3 | 
  Royal Ontario Museum M14941 | 
  Colombo, Sri Lanka | 
  
           
   | 
   | 
   | Gelosaite | 
  R120031 | 
  BiMo6+(2-5x)Mo5+6xO7(OH)·H2O (0 < x < 0.4) | 
  Pete Williams and Bill Pinch  | 
  Old 25 pipe, Kingsgate, New South Wales, Australia | 
  
           
   | 
   | 
   | Geminite | 
  R070434 | 
  Cu2+(AsO3OH)·H2O | 
  Michael Scott S104403 | 
  Jáchymov (St Joachimsthal), Ostrov, Krusné Hory Mountains (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic | 
  
           
   | 
   | 
   | Geminite | 
  R100200 | 
  Cu2+(AsO3OH)·H2O | 
  Bob Jenkins  | 
  Salsigne mine, Aude France | 
  
           
   | 
   | 
   | Genthelvite | 
  R080134 | 
  Be3Zn4(SiO4)3S | 
  James Shigley  | 
  Rockport, Essex County, Massachusetts, USA | 
  
           
   | 
   | 
   | Georgbarsanovite | 
  R070101 | 
  Na12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2·H2O | 
  Michael Scott S105094 | 
  Petrelius Mountain, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Georgbokiite | 
  R070111 | 
  Cu5O2(Se4+O3)2Cl2 | 
  Michael Scott S105096 | 
  Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Georgechaoite | 
  R100082 | 
  KNaZrSi3O9·2H2O | 
  Luiz Menezes   | 
  Pocos de Caldas, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Georgerobinsonite | 
  R110148 | 
  Pb4(CrO4)2(OH)2FCl | 
  The University of Arizona Mineral Museum 5194 and 10550 | 
  Mammoth mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Gerdtremmelite | 
  R100224 | 
  ZnAl2(AsO4)(OH)5 | 
  William Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Gerhardtite | 
  R120082 | 
  Cu2(NO3)(OH)3 | 
  Joe Ruiz  | 
  Tonapah-Belmont mine, Marizopa County, Arizona, USA | 
  
           
   | 
   | 
   | Germanite | 
  R050439 | 
  Cu13Fe2Ge2S16 | 
  University of Arizona Mineral Museum 10953 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Gersdorffite | 
  R070343 | 
  NiAsS | 
  Michael Scott S103593 | 
  Mitterberg, Salzburg, Austria | 
  
           
   | 
   | 
   | Gersdorffite | 
  R070304 | 
  NiAsS | 
  Michael Scott S104592 | 
  Aït Ahmane, Bou Azzer, Anti-Atlas Mts, Morocco | 
  
           
   | 
   | 
   | Gersdorffite | 
  R070341 | 
  NiAsS | 
  Michael Scott S104663 | 
  Lubietová (Libethen), Banská Bystrica (Neusohl) District, Banskobystrický kraj, Slovak Republic | 
  
           
   | 
   | 
   | Gerstleyite | 
  R060255 | 
  Na2(Sb,As)8S13·2H2O | 
  Michael Scott S100166 | 
  Western mine, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Gerstleyite | 
  R060510 | 
  Na2(Sb,As)8S13·2H2O | 
  Michael Scott S100174 | 
  Baker mine, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Gerstmannite | 
  R130646 | 
  Mn2+MgZn(SiO4)(OH)2 | 
  Rock Currier  | 
  Sterling mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Getchellite | 
  R050156 | 
  SbAsS3 | 
  Jim McGlasson  | 
  Khaidarkan, Kyrgyzstan | 
  
           
   | 
   | 
   | Getchellite | 
  R060109 | 
  SbAsS3 | 
  University of Arizona Mineral Museum 16076 | 
  Getchell mine, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Gianellaite | 
  R130648 | 
  (Hg2N)2(SO4)(H2O)x | 
  Rock Currier  | 
  Perry Pit, Mariposa mine, Terlingua District, Brewster County, Texas, USA | 
  
           
   | 
   | 
   | Gibbsite | 
  R190038 | 
  Al(OH)3 | 
  Jim McGlasson  | 
  Mokrá, Žlutice, Karlovy Vary District, Karlovy Vary Region, Czech Republic | 
  
           
   | 
   | 
   | Gillardite | 
  R100074 | 
  Cu3NiCl2(OH)6 | 
  Marcus Origlieri  | 
  132 North deposit, Widgiemooltha, Western Australia, Australia | 
  
           
   | 
   | 
   | Gillardite | 
  R110068 | 
  Cu3NiCl2(OH)6 | 
  Renato & Adriana Pagano  | 
  132 North deposit, Widgiemooltha, Western Australia, Australia | 
  
           
   | 
   | 
   | Gillespite | 
  R060060 | 
  BaFe2+Si4O10 | 
  University of Arizona Mineral Museum 9721 | 
  Incline, California, USA | 
  
           
   | 
   | 
   | Gillespite | 
  R061031 | 
  BaFe2+Si4O10 | 
  Michael Scott S101347 | 
  La Madrelena mine, Tres Pozos, Municipio de Tecate, Baja California Norte, Mexico | 
  
           
   | 
   | 
   | Gillulyite | 
  R070433 | 
  Tl2As7.5Sb0.3S13 | 
  Michael Scott S104722 | 
  Mercur Gold mine, Mercur District (Camp Floyd District), Oquirrh Mountains, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Gilmarite | 
  R130688 | 
  Cu2+3(AsO4)(OH)3 | 
  Bob Jenkins  | 
  El Guanaco mine, Guanaco, Santa Catalina, Antofagasta Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Giniite | 
  R060765 | 
  Fe2+Fe3+4(PO4)4(OH)2·2H2O | 
  Michael Scott S101093 | 
  Sandamab, Namibia | 
  
           
   | 
   | 
   | Ginorite | 
  R070305 | 
  Ca2B14O20(OH)6·5H2O | 
  James Shigley  | 
  Mott Mine, Twenty Mule Team Canyon, Death Valley, Inyo County, California, USA | 
  
           
   | 
   | 
   | Gismondine-Ca | 
  R060809 | 
  Ca2(Si4Al4)O16·8H2O | 
  Michael Scott S101162 | 
  Arensberg, Eifel Mountains, Germany | 
  
           
   | 
   | 
   | Gladiusite | 
  R070432 | 
  Fe3+2Fe2+4(PO4)(OH)11·H2O | 
  Michael Scott S104714 | 
  Kovdor mine, Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Glass | 
  R170056 | 
   | 
  Rock Currier  | 
  Macusani Basin, Carabaya Province, Puno Department, Peru | 
  
           
   | 
   | 
   | Glass-(Ce) | 
  R110075 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Dy) | 
  R110082 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Er) | 
  R110084 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Eu) | 
  R110079 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Gd) | 
  R110080 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Ho) | 
  R110083 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(La) | 
  R110074 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Lu) | 
  R110087 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Nd) | 
  R110077 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Pr) | 
  R110076 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Sm) | 
  R110078 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Tb) | 
  R110081 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Tm) | 
  R110085 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Y) | 
  R110073 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glass-(Yb) | 
  R110086 | 
   | 
  Elizabeth Cairns, University of Edinburgh  | 
  Synthetic | 
  
           
   | 
   | 
   | Glauberite | 
  R050350 | 
  Na2Ca(SO4)2 | 
  California Institute of Technology  | 
  Soda Lake, San Luis Obispo County, California, USA | 
  
           
   | 
   | 
   | Glauberite | 
  R070322 | 
  Na2Ca(SO4)2 | 
  James Shigley  | 
  Salton Sea, Imperial County, California, USA | 
  
           
   | 
   | 
   | Glaucocerinite | 
  R060831 | 
  (Zn1-xAlx)(SO4)x/2(OH)2·nH2O (x < 0.5, n > 3x/2) | 
  Michael Scott S101197 | 
  Laurion, Greece | 
  
           
   | 
   | 
   | Glaucodot | 
  R070644 | 
  (Co0.5Fe0.5)AsS | 
  Michael Scott S104702 | 
  Hakansboda, Lindesberg, Västmanland, Sweden | 
  
           
   | 
   | 
   | Glaucodot | 
  R070294 | 
  (Co0.5Fe0.5)AsS | 
  Michael Scott S104712 | 
  Hakansboda, Lindesberg, Västmanland, Sweden | 
  
           
   | 
   | 
   | Glauconite | 
  R070295 | 
  (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 | 
  Michael Scott S104721 | 
  Hope Green Point, Coringa island, Queensland, Australia | 
  
           
   | 
   | 
   | Glaucophane | 
  R050333 | 
  ◻Na2(Mg3Al2)Si8O22(OH)2 | 
  California Institute of Technology W-204 | 
  Cazadero, Sonoma County, California, USA | 
  
           
   | 
   | 
   | Glaucophane | 
  R070515 | 
  ◻Na2(Mg3Al2)Si8O22(OH)2 | 
  James Shigley  | 
  La Beaume, near Turin, Piedmont, Italy | 
  
           
   | 
   | 
   | Glaucophane | 
  R120002 | 
  ◻Na2(Mg3Al2)Si8O22(OH)2 | 
  Gunnar Farber  | 
  Cape Marmari, Grammata Bay, Syros Island, Aegean Sea, Greece | 
  
           
   | 
   | 
   | Glecklerite | 
  R230002 | 
  Na(C2H3O3) | 
  Warren Lazar  | 
  Pusch Ridge, Santa Catalina Mountains, Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Glucine | 
  R070050 | 
  CaBe4(PO4)2(OH)4·0.5H2O | 
  Michael Scott S105095 | 
  Boevskoye deposit, Middle Urals, Russia | 
  
           
   | 
   | 
   | Glushinskite | 
  R060318 | 
  Mg(C2O4)·2H2O | 
  Michael Scott S100313 | 
  Route 238, 25 miles west of Maricopa, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Gmelinite-Ca | 
  R061130 | 
  Ca2(Si8Al4)O24·11H2O | 
  Michael Scott S104698 | 
  Fara Vicentino, Vicenza, Veneto, Italy | 
  
           
   | 
   | 
   | Gmelinite-Ca | 
  R070283 | 
  Ca2(Si8Al4)O24·11H2O | 
  Michael Scott S104697 | 
  Montecchio Maggiore, Vicenza Province, Veneto, Italy | 
  
           
   | 
   | 
   | Gmelinite-Na | 
  R050371 | 
  Na4(Si8Al4)O24·11H2O | 
  Eugene Schlepp  | 
  Cairns Bay, Flinders Range, Australia | 
  
           
   | 
   | 
   | Gmelinite-Na | 
  R060168 | 
  Na4(Si8Al4)O24·11H2O | 
  Guy Ouellet  | 
  Five Islands, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Gmelinite-Na | 
  R070354 | 
  Na4(Si8Al4)O24·11H2O | 
  Michael Scott S104705 | 
  Island of Finders, Australia | 
  
           
   | 
   | 
   | Gmelinite-Na | 
  R110191 | 
  Na4(Si8Al4)O24·11H2O | 
  Donald Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Godovikovite | 
  R070108 | 
  (NH4)Al(SO4)2 | 
  Michael Scott S100396 | 
  Kladno, Bohmen, Czech Republic | 
  
           
   | 
   | 
   | Goedkenite | 
  R130091 | 
  Sr2Al(PO4)2(OH) | 
  Mark N. Feinglos  | 
  Palermo #1 mine, near North Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Goedkenite | 
  R130667 | 
  Sr2Al(PO4)2(OH) | 
  Rock Currier  | 
  Palermo No. 1 mine, Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Goethite | 
  R050142 | 
  FeO(OH) | 
  Dave Bunk Minerals  | 
  Park County, Colorado, USA | 
  
           
   | 
   | 
   | Goethite | 
  X050091 | 
  FeO(OH) | 
  Caltech  | 
  Michigan, USA | 
  
           
   | 
   | 
   | Goethite | 
  X050093 | 
  FeO(OH) | 
  Caltech  | 
  Negaunee, Michigan, USA | 
  
           
   | 
   | 
   | Goethite | 
  R120086 | 
  FeO(OH) | 
  Michael Scott S102426 | 
  Alexander mine, Vrancice, Příbram, Central Bohemia Region, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Gold | 
  R070279 | 
  Au | 
  Michael Scott S104564 | 
  Agua Fria Canyon Mine, Mariposa County, California, USA | 
  
           
   | 
   | 
   | Goldfieldite | 
  R110023 | 
  (Cu4◻2)Cu6Te4S13 | 
  William Pinch  | 
  Mohawk mine, Goldfield, Esmeralda County, Nevada, USA | 
  
           
   | 
   | 
   | Goldichite | 
  R120120 | 
  KFe3+(SO4)2·4H2O | 
  Marcus Origlieri  | 
  Dexter #7 mine, San Rafael Swell, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Goldmanite | 
  R061138 | 
  Ca3V3+2(SiO4)3 | 
  Michael Scott S103402 | 
  Tetitice, Klatovy, Czechoslovakia | 
  
           
   | 
   | 
   | Goldmanite | 
  R090043 | 
  Ca3V3+2(SiO4)3 | 
  Kevin Righter V-gar2 | 
  Synthetic | 
  
           
   | 
   | 
   | Goldmanite | 
  R090044 | 
  Ca3V3+2(SiO4)3 | 
  Kevin Righter, V-gar3 | 
  Synthetic | 
  
           
   | 
   | 
   | Goldschmidtite | 
  R190009 | 
  KNbO3 | 
  Nicole Meyer  | 
  Koffiefontein, South Africa | 
  
           
   | 
   | 
   | Golyshevite | 
  R061047 | 
  Na10Ca9Zr3Fe2SiNb(Si3O9)2(Si9O27)2(OH)3(CO3)·H2O | 
  Michael Scott S100972 | 
  Mica mine, Kovdor, Kola, Russia | 
  
           
   | 
   | 
   | Gonnardite | 
  R100080 | 
  (Na,Ca)2(Si,Al)5O10·3H2O | 
  Ivano Rocchetti  | 
  Rio Chiavone nero, Fara, Breganze, Vicenza, Italy | 
  
           
   | 
   | 
   | Gonnardite | 
  R100081 | 
  (Na,Ca)2(Si,Al)5O10·3H2O | 
  Ivano Rocchetti  | 
  Chaux de Bergonne, Gignat, Puy de Dome, France | 
  
           
   | 
   | 
   | Gorceixite | 
  R060158 | 
  BaAl3(PO4)(PO3OH)(OH)6 | 
  Mark Mauthner 3568 | 
  16 miles north of the Hess River, Mayo Mining District, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Gordaite | 
  R100059 | 
  NaZn4(SO4)(OH)6Cl·6H2O | 
  William W Pinch  | 
  San Francisco mine, Sierra Gorda, Chile | 
  
           
   | 
   | 
   | Gordonite | 
  R070437 | 
  MgAl2(PO4)2(OH)2·8H2O | 
  Michael Scott S104490 | 
  Amatrice Hill, Stockton, Utah, USA | 
  
           
   | 
   | 
   | Gordonite | 
  R130671 | 
  MgAl2(PO4)2(OH)2·8H2O | 
  Rock Currier  | 
  Near Milgun Station, Meekatharra Shire, Western Australia, Australia | 
  
           
   | 
   | 
   | Görgeyite | 
  R060578 | 
  K2Ca5(SO4)6·H2O | 
  Michael Scott S100807 | 
  Inder Lake, West Kazakhstan, Kazakhstan | 
  
           
   | 
   | 
   | Gormanite | 
  R050093 | 
  Fe2+3Al4(PO4)4(OH)6·2H2O | 
  Rock Currier  | 
  Rapid Creek, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Gormanite | 
  R080075 | 
  Fe2+3Al4(PO4)4(OH)6·2H2O | 
  Michael Scott S100786 | 
  Linopolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Götzenite | 
  R070449 | 
  Ca4NaCa2Ti(Si2O7)2(OF)F2 | 
  Michael Scott S104517 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Götzenite | 
  R130110 | 
  Ca4NaCa2Ti(Si2O7)2(OF)F2 | 
  Gunnar Farber  | 
  Pocos de Caldas, Pocos de Caldas Plateau, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Götzenite | 
  R140781 | 
  Ca4NaCa2Ti(Si2O7)2(OF)F2 | 
  Ch. and H. Schäfer  | 
  Parco Chigi, Ariccia, Alban Hills, Rome Province, Latium, Italy | 
  
           
   | 
   | 
   | Götzenite | 
  R141182 | 
  Ca4NaCa2Ti(Si2O7)2(OF)F2 | 
  Marcelo B. Andrade  | 
  Poços De Caldas, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Goudeyite | 
  R060268 | 
  Cu6Al(AsO4)3(OH)6·3H2O | 
  Michael Scott S100173 | 
  Copper Stope, Majuba Hill mine, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Gowerite | 
  R050673 | 
  Ca[B5O8(OH)][B(OH)3]·3H2O | 
  University of Arizona Mineral Museum 9074 | 
  Death Valley, California, USA | 
  
           
   | 
   | 
   | Goyazite | 
  R061054 | 
  SrAl3(PO4)(PO3OH)(OH)6 | 
  Royal Ontario Museum M52410 | 
  Yukon Territory, Canada | 
  
           
   | 
   | 
   | Graemite | 
  R100207 | 
  Cu2+(Te4+O3)·H2O | 
  Rob Lavinsky/Evan Jones   | 
  Cole shaft, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Graeserite | 
  R110054 | 
  Fe3+4Ti3As3+O13(OH) | 
  Bob Jenkins  | 
  Binntal, Wallis, Switzerland | 
  
           
   | 
   | 
   | Graftonite | 
  R070153 | 
  Fe2+Fe2+2(PO4)2 | 
  James Shigley  | 
  Bull Moose mine, Custer, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Grandaite | 
  R220046 | 
  Sr2Al(AsO4)2(OH) | 
  Fernando Cámara  | 
  Valletta mine, Maira Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Grandidierite | 
  R050196 | 
  MgAl3O2(BO3)(SiO4) | 
  Marcus Origlieri  | 
  Madagascar | 
  
           
   | 
   | 
   | Grandreefite | 
  R100012 | 
  Pb2(SO4)F2 | 
  Natural History Museum of Los Angeles County LACMNH 33608 | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Grandviewite | 
  R070667 | 
  Cu3Al2(SO4)(OH)10·H2O | 
  George Stevens, Malcom Alter  | 
  Grand View mine, Coconino County, Arizona, USA | 
  
           
   | 
   | 
   | Graphite | 
  R050503 | 
  C | 
  Marcus Origlieri  | 
  Sterling mine, Ogdensburg, New Jersey, USA | 
  
           
   | 
   | 
   | Graphite | 
  R090047 | 
  C | 
  Wendell Wilson  | 
  Merelani, Tanzania | 
  
           
   | 
   | 
   | Graphite | 
  R120025 | 
  C | 
  Donald Doell  | 
  Saint-Sauveur Graphite occurrence, Saint-Sauveur, Les Pays-d'en-Haut RCM, Laurentides, Québec, Canada | 
  
           
   | 
   | 
   | Gratonite | 
  R050365 | 
  Pb9As4S15 | 
  University of Arizona Mineral Museum 10998 | 
  Cerro de Pasco, Peru | 
  
           
   | 
   | 
   | Gratonite | 
  R060956 | 
  Pb9As4S15 | 
  Bob Jenkins  | 
  Rio Tinto mine, Rio Tinto, Huelva Province, Spain | 
  
           
   | 
   | 
   | Gravegliaite | 
  R210022 | 
  Mn2+(S4+O3)·3H2O | 
  Michael Scott S104418 | 
  Gambatesa Mine, Graveglia Valley, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Gravegliaite | 
  R130676 | 
  Mn2+(S4+O3)·3H2O | 
  Rock Currier  | 
  Valgraveglia mine, Reppia, Graveglia Valley, Ne, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Greenockite | 
  R060091 | 
  CdS | 
  University of Arizona Mineral Museum 3396 | 
  Mono County, California, USA | 
  
           
   | 
   | 
   | Greenockite | 
  R060110 | 
  CdS | 
  University of Arizona Mineral Museum 14972 | 
  San Juan mine, Dragoon Mountains, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Greenockite | 
  R070017 | 
  CdS | 
  Mark Mauthner 1630 | 
  Siglo XX Mine, Llallagua, Potosi Department, Bolivia | 
  
           
   | 
   | 
   | Greenockite | 
  R090045 | 
  CdS | 
  Carl Ingerson via UAMM  | 
  Synthetic | 
  
           
   | 
   | 
   | Greifensteinite | 
  R060588 | 
  Ca2Be4Fe2+5(PO4)6(OH)4·6H2O | 
  Michael Scott S100786 | 
  João Teodoro mine, Linópolis district, Divino das Laranjeiras, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Greifensteinite | 
  R070613 | 
  Ca2Be4Fe2+5(PO4)6(OH)4·6H2O | 
  Dakota Matrix Minerals  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Greifensteinite | 
  R100221 | 
  Ca2Be4Fe2+5(PO4)6(OH)4·6H2O | 
  Luiz Menezes  | 
  Xanda mine, Virgem da Lapa, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Greigite | 
  R120103 | 
  Fe2+Fe3+2S4 | 
  Bob Jenkins  | 
  Alacrán mine, Pampa Larga district, Tiara Maria, Copiapó, Chile | 
  
           
   | 
   | 
   | Griceite | 
  R070436 | 
  LiF | 
  Michael Scott S104425 | 
  Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville County, Québec, Canada | 
  
           
   | 
   | 
   | Grimselite | 
  R141028 | 
  K3Na(UO2)(CO3)3·H2O | 
  William W. Pinch  | 
  Rovnost Mine, Jáchymov, Krušné Hory Mts, Karlovy Vary, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Griphite | 
  R050618 | 
  Ca(Mn2+,Na,Li)6Fe2+Al2(PO4)6(F,OH)2 | 
  University of Arizona Mineral Museum 7907 | 
  Pennington County, South Dakota, USA | 
  
           
   | 
   | 
   | Grischunite | 
  R130677 | 
  NaCa2Mn2+5Fe3+(AsO4)6·2H2O | 
  Rock Currier  | 
  Falotta, Tinizong, Oberhalbstein, Grischun, Switzerland | 
  
           
   | 
   | 
   | Grossular | 
  R040065 | 
  Ca3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 11764 | 
  Feng Tien mine, Taiwan | 
  
           
   | 
   | 
   | Grossular | 
  R040066 | 
  Ca3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 7979 | 
  Redding, Connecticut, USA | 
  
           
   | 
   | 
   | Grossular | 
  X060020 | 
  Ca3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 13402 | 
  Laguna de Jaco, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Grossular | 
  R050081 | 
  Ca3Al2(SiO4)3 | 
  Rock Currier  | 
  Kayes Region, Mali | 
  
           
   | 
   | 
   | Grossular | 
  R050036 | 
  Ca3Al2(SiO4)3 | 
  Eugene Schlepp  | 
  Wah Wah Mountains, Utah, USA | 
  
           
   | 
   | 
   | Grossular | 
  R050312 | 
  Ca3Al2(SiO4)3 | 
  Eugene Schlepp  | 
  Eden Mills mine, Vermont, USA | 
  
           
   | 
   | 
   | Grossular | 
  R060278 | 
  Ca3Al2(SiO4)3 | 
  Herb Obodda 063 | 
  Diakon, Kayes Region, Mali | 
  
           
   | 
   | 
   | Grossular | 
  R060382 | 
  Ca3Al2(SiO4)3 | 
  Herb Obodda 041 | 
  Lalatema, near Mount Kilimanjaro, Tanzania | 
  
           
   | 
   | 
   | Grossular | 
  R060442 | 
  Ca3Al2(SiO4)3 | 
  Gemological Institute of America 29 | 
  Pakistan(?) | 
  
           
   | 
   | 
   | Grossular | 
  R060443 | 
  Ca3Al2(SiO4)3 | 
  Gemological Institute of America 16 | 
  unknown | 
  
           
   | 
   | 
   | Grossular | 
  R060444 | 
  Ca3Al2(SiO4)3 | 
  Gemological Institute of America 28 | 
  Pakistan (?) | 
  
           
   | 
   | 
   | Grossular | 
  R060446 | 
  Ca3Al2(SiO4)3 | 
  Gemological Institute of America 4 | 
  Africa | 
  
           
   | 
   | 
   | Grossular | 
  R060452 | 
  Ca3Al2(SiO4)3 | 
  Gemological Institute of America 5796 | 
  unknown | 
  
           
   | 
   | 
   | Grossular | 
  R060453 | 
  Ca3Al2(SiO4)3 | 
  Gemological Institute of America 5796 | 
  unknown | 
  
           
   | 
   | 
   | Grossular | 
  R060499 | 
  Ca3Al2(SiO4)3 | 
  Michael Scott S100295 | 
  Lake Jaco, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Grossular | 
  R070551 | 
  Ca3Al2(SiO4)3 | 
  www.multicolour.com  | 
  Mali | 
  
           
   | 
   | 
   | Grossular | 
  R100146 | 
  Ca3Al2(SiO4)3 | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Grossular | 
  R100152 | 
  Ca3Al2(SiO4)3 | 
  William W. Pinch  | 
  Matara, Sri Lanka | 
  
           
   | 
   | 
   | Grossular | 
  R100160 | 
  Ca3Al2(SiO4)3 | 
  William W. Pinch  | 
  Kataragama, Sri Lanka | 
  
           
   | 
   | 
   | Grossular | 
  R100161 | 
  Ca3Al2(SiO4)3 | 
  William W. Pinch  | 
  Kenya | 
  
           
   | 
   | 
   | Grossular | 
  R141207 | 
  Ca3Al2(SiO4)3 | 
  Rock Currier  | 
  Katkamsandi, Hazaribagh District, Jharkhand, India | 
  
           
   | 
   | 
   | Groutite | 
  R070583 | 
  Mn3+O(OH) | 
  James Shigley  | 
  Marble Canyon, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Groutite | 
  R080004 | 
  Mn3+O(OH) | 
  Michael Scott S101187 | 
  Roberts mine, Crosby, Minnesota, USA | 
  
           
   | 
   | 
   | Grunerite | 
  R040150 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  University of Arizona Mineral Museum 13760 | 
  Smallwood mine, Heath Lake, Newfoundland, Canada | 
  
           
   | 
   | 
   | Grunerite | 
  X050095 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  G.R. Rossman 1635 | 
  Mount Write, Mistassini, Quebec, Canada | 
  
           
   | 
   | 
   | Grunerite | 
  R060062 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  University of Arizona Mineral Museum 16157 | 
  2C mine, Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Grunerite | 
  R070204 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  California Institute of Technology CIT-9702 | 
  Penge mine, Transvaal, South Africa | 
  
           
   | 
   | 
   | Grunerite | 
  R070186 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  California Institute of Technology CIT-6816 | 
  Homestake mine, 3800' level, Lead, Lawrence County, South Dakota, USA | 
  
           
   | 
   | 
   | Grunerite | 
  R070267 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  Michael Scott S101449 | 
  Långfall mine (Saxberg mine),  Saxberget ore field,  Ludvika,  Dalarna,  Sweden | 
  
           
   | 
   | 
   | Guanacoite | 
  R060811 | 
  Cu2Mg3(OH)4(AsO4)2·4H2O | 
  Bob Jenkins  | 
  Guanaco mine, Tal Tal, Chile | 
  
           
   | 
   | 
   | Guanajuatite | 
  R080140 | 
  Bi2Se3 | 
  James Shigley  | 
  Falun, Dalarna, Sweden | 
  
           
   | 
   | 
   | Guangyuanite | 
  R210013 | 
  Pb3Cl3(Se4+O3)(OH) | 
  Jim McGlasson #9213 | 
  El Dragón mine, Antonio Quijarro Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | Gudmundite | 
  R060741 | 
  FeSbS | 
  Michael Scott S101199 | 
  Pezinok, Czechoslovakia | 
  
           
   | 
   | 
   | Guilleminite | 
  R090007 | 
  Ba(UO2)3(Se4+O3)2O2·3H2O | 
  William W. Pinch  | 
  Musonoi mine, Kolwezi, Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Guite | 
  R180022 | 
  Co2+Co3+2O4 | 
  Xiangping Gu  | 
  Sicomines copper-cobalt mine, near Kolwezi City, Democratic Republic of Congo | 
  
           
   | 
   | 
   | Gunningite | 
  R070571 | 
  Zn(SO4)·H2O | 
  James Shigley  | 
  Rammelsberg, Goslar, Harz Mountains, Lower Saxony, Germany | 
  
           
   | 
   | 
   | Günterblassite | 
  R141209 | 
  (K,Ca,Ba,Na,◻)3Fe[(Si,Al)13O25(OH,O)4]·7H2O | 
  Ch. and H. Schäfer  | 
  Rother Kopf, Gerolstein, Eifel, Germany | 
  
           
   | 
   | 
   | Gustavite | 
  R100202 | 
  AgPbBi3S6 | 
  William W Pinch  | 
  Level 390, Vein 14, Mina Herminia, Julcani District, Huancavelica, Peru | 
  
           
   | 
   | 
   | Gustavite | 
  R100203 | 
  AgPbBi3S6 | 
  William W Pinch  | 
  Level 390, Vein 14, Mina Herminia, Julcani District, Huancavelica, Peru | 
  
           
   | 
   | 
   | Gustavite | 
  R110004 | 
  AgPbBi3S6 | 
  William W Pinch  | 
  Rotgulden, Murwinkel, Lungau, Salzburg, Austria | 
  
           
   | 
   | 
   | Gustavite | 
  R110011 | 
  AgPbBi3S6 | 
  William Pinch  | 
  Rotgulden, Salzburg, Austria | 
  
           
   | 
   | 
   | Guyanaite | 
  R070444 | 
  CrO(OH) | 
  Michael Scott S104672 | 
  Merume river, Kamakusa, Mazaruni District, Guyana | 
  
           
   | 
   | 
   | Gypsum | 
  R040029 | 
  Ca(SO4)·2H2O | 
  University of Arizona Mineral Museum 4885 | 
  Twin Buttes, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Gypsum | 
  X050096 | 
  Ca(SO4)·2H2O | 
  Caltech  | 
   | 
  
           
   | 
   | 
   | Gypsum | 
  X050097 | 
  Ca(SO4)·2H2O | 
  Caltech  | 
  Cave of Swords, Naica, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Gypsum | 
  X050098 | 
  Ca(SO4)·2H2O | 
  Caltech  | 
  Lake Mead, Arizona, USA | 
  
           
   | 
   | 
   | Gypsum | 
  X050099 | 
  Ca(SO4)·2H2O | 
  CIT 628 | 
  Pomiaia, Italy | 
  
           
   | 
   | 
   | Gypsum | 
  R060509 | 
  Ca(SO4)·2H2O | 
  Michael Scott S100215 | 
  Pierre Shale, Hermosa, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Gyrolite | 
  R060163 | 
  NaCa16(Si23Al)O60(OH)8·14H2O | 
  Marcus Origlieri  | 
  Bombay, India | 
  
           
   | 
   | 
   | Gysinite-(Nd) | 
  R100062 | 
  PbNd(CO3)2(OH)·H2O | 
  William W Pinch  | 
  Kasompi, 70 km west of Kambove, Katanga, Congo | 
  
           
   | 
   | 
   | Hafnon | 
  X050100 | 
  Hf(SiO4) | 
  Caltech  | 
  synthetic, grown by J.Hanchar | 
  
           
   | 
   | 
   | Hafnon | 
  R060987 | 
  Hf(SiO4) | 
  Alex Speer  | 
  Synthetic | 
  
           
   | 
   | 
   | Hagendorfite | 
  R130128 | 
  Na2MnFe2+Fe3+(PO4)3 | 
  Rock Currier  | 
  Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Hagendorfite | 
  R160083 | 
  Na2MnFe2+Fe3+(PO4)3 | 
  Rock Currier  | 
  Palermo No. 1 mine, Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Hainite-(Y) | 
  R141183 | 
  (Ca3Y)Na(NaCa)Ti(Si2O7)2(OF)F2 | 
  Marcelo B. Andrade  | 
  Langesund Fjord, Norway | 
  
           
   | 
   | 
   | Haiweeite | 
  R060732 | 
  Ca(UO2)2(Si5O12)(OH)2·6H2O | 
  Bob Jenkins  | 
  Los Azules, Copiapo, Chile | 
  
           
   | 
   | 
   | Haiweeite | 
  R061051 | 
  Ca(UO2)2(Si5O12)(OH)2·6H2O | 
  Michael Scott S101400 | 
  Teofoli Otoni, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Håleniusite-(La) | 
  R060808 | 
  LaOF | 
  Michael Scott S101164 | 
  Bastnas, Sweden | 
  
           
   | 
   | 
   | Halite | 
  R070292 | 
  NaCl | 
  Michael Scott S104647 | 
  Stassfurt, Stassfurt Deposit, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Halite | 
  R070534 | 
  NaCl | 
  James Shigley  | 
  Searles Lake, San Bernadino County, California, USA | 
  
           
   | 
   | 
   | Halite | 
  R070586 | 
  NaCl | 
  James Shigley  | 
  Heringen, Werra Valley, Hesse, Germany | 
  
           
   | 
   | 
   | Halotrichite | 
  R060118 | 
  Fe2+Al2(SO4)4·22H2O | 
  University of Arizona Mineral Museum 4992 | 
  Alum Canyon, Patagonia Mountains, Arizona, USA | 
  
           
   | 
   | 
   | Halotrichite | 
  R070673 | 
  Fe2+Al2(SO4)4·22H2O | 
  Malcolm Alter  | 
  Orphan mine, Grand Canyon, Coconino County, Arizona, USA | 
  
           
   | 
   | 
   | Hambergite | 
  X050101 | 
  Be2(BO3)(OH) | 
  Caltech  | 
   | 
  
           
   | 
   | 
   | Hambergite | 
  R050603 | 
  Be2(BO3)(OH) | 
  Bill Larson  | 
  Momeik, Burma | 
  
           
   | 
   | 
   | Hambergite | 
  R050672 | 
  Be2(BO3)(OH) | 
  University of Arizona Mineral Museum 2498 | 
  Anjanabonoina, Madagascar | 
  
           
   | 
   | 
   | Hammarite | 
  R110028 | 
  Cu2Pb2Bi4S9 | 
  Bob Jenkins   | 
  Baita Mining District (Baita Bihor; Rezbanya), Nucet, Bihor Co., Romania | 
  
           
   | 
   | 
   | Hanksite | 
  R050291 | 
  KNa22(SO4)9(CO3)2Cl | 
  Marcus Origlieri  | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Hannebachite | 
  R060572 | 
  Ca(SO3)·0.5H2O | 
  Michael Scott S100164 | 
  Hannebacher Ley, near Hannebach, Eifel, Germany | 
  
           
   | 
   | 
   | Hardystonite | 
  R040026 | 
  Ca2ZnSi2O7 | 
  University of Arizona Mineral Museum 9385 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Harmotome | 
  R070015 | 
  Ba2(Si12Al4)O32·12H2O | 
  Michael Scott S101021 | 
  Old Kilpatrick, Dumbartonshire, Scotland | 
  
           
   | 
   | 
   | Harmotome | 
  R070016 | 
  Ba2(Si12Al4)O32·12H2O | 
  Michael Scott S101329 | 
  Idar-Oberstein, Germany | 
  
           
   | 
   | 
   | Hashemite | 
  R100120 | 
  Ba(CrO4) | 
  William W. Pinch  | 
  60 kilometers south east of Aman, West Central Jordan | 
  
           
   | 
   | 
   | Hastingsite | 
  R070124 | 
  NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 | 
  Mark Mauthner 1017 | 
  Clea Claims, Pelly River area, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Hastingsite | 
  R070194 | 
  NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 | 
  California Institute of Technology CIT-2030 | 
  Seglenge, Sweden | 
  
           
   | 
   | 
   | Hastingsite | 
  R070250 | 
  NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 | 
  Michael Scott S100448 | 
  unnamed quarry, Dmitrievka village, Mariupol' Massif (Oktyabr'skii), Azov Sea Region, Donetsk Oblast', Ukraine | 
  
           
   | 
   | 
   | Hatchite | 
  R100058 | 
  AgTlPbAs2S5 | 
  William W Pinch  | 
  Lengenbach quarry, Binnental, Canton Wallis, Switzerland | 
  
           
   | 
   | 
   | Hauchecornite | 
  R060851 | 
  Ni9BiSbS8 | 
  Michael Scott S100923 | 
  Vermilion mine, Sudbury, Ontario, Canada | 
  
           
   | 
   | 
   | Hauerite | 
  R070438 | 
  MnS2 | 
  Michael Scott S102367 | 
  Machov, Poland | 
  
           
   | 
   | 
   | Hauerite | 
  R070506 | 
  MnS2 | 
  James Shigley  | 
  Destricella mine, Raddusa, Catania Province, Italy | 
  
           
   | 
   | 
   | Hausmannite | 
  R040090 | 
  Mn2+Mn3+2O4 | 
  University of Arizona Mineral Museum 3747 | 
  Öhrenstock, Ilmenau, near Thuringia, Germany | 
  
           
   | 
   | 
   | Hausmannite | 
  R040091 | 
  Mn2+Mn3+2O4 | 
  University of Arizona Mineral Museum 13616 | 
  Germany | 
  
           
   | 
   | 
   | Hausmannite | 
  R060512 | 
  Mn2+Mn3+2O4 | 
  Michael Scott S100308 | 
  N'Chwaning II mine, Kalahari manganese field, northern Cape Province, Republic of South Africa | 
  
           
   | 
   | 
   | Hausmannite | 
  R110179 | 
  Mn2+Mn3+2O4 | 
  Smithsonian  | 
  Cumbria, England | 
  
           
   | 
   | 
   | Haüyne | 
  R040023 | 
  Na3Ca(Si3Al3)O12(SO4) | 
  University of Arizona Mineral Museum 6685 | 
  Cazadero river, Ovalle, Limarí Province, Coquimbo, Chile | 
  
           
   | 
   | 
   | Haüyne | 
  X060005 | 
  Na3Ca(Si3Al3)O12(SO4) | 
  University of Arizona Mineral Museum 10354 | 
  Teputa, French Polynesia | 
  
           
   | 
   | 
   | Haüyne | 
  R050606 | 
  Na3Ca(Si3Al3)O12(SO4) | 
  University of Arizona Mineral Museum  | 
  Ariccia, near Rome, Italy | 
  
           
   | 
   | 
   | Haüyne | 
  R070121 | 
  Na3Ca(Si3Al3)O12(SO4) | 
  Michael Scott S100419 | 
  Hesse, Germany | 
  
           
   | 
   | 
   | Haüyne | 
  R070557 | 
  Na3Ca(Si3Al3)O12(SO4) | 
  Farooq Hashmi  | 
  Badakhshan, Afghanistan | 
  
           
   | 
   | 
   | Hawleyite | 
  R061010 | 
  CdS | 
  Michael Scott S101323 | 
  Eureka County, Nevada, USA | 
  
           
   | 
   | 
   | Haxonite | 
  R070034 | 
  (Fe,Ni)23C6 | 
  Michael Scott S105101 | 
  Egvekinot meteorite, Chukot Province, Russia | 
  
           
   | 
   | 
   | Haydeeite | 
  R120085 | 
  Cu3Mg(OH)6Cl2 | 
  Bob Jenkins  | 
  Haydee mine, Salar Grande, Atacama desert, Chile | 
  
           
   | 
   | 
   | Haynesite | 
  R060599 | 
  (UO2)3(Se4+O3)2(OH)2·5H2O | 
  Michael Scott S100801 | 
  Repete mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Hazenite | 
  R100029 | 
  KNaMg2(PO4)2·14H2O | 
  Hexiong Yang  | 
  Mono Lake, California, USA | 
  
           
   | 
   | 
   | Heazlewoodite | 
  R061074 | 
  Ni3S2 | 
  Michael Scott S102794 | 
  Tasmania, Australia | 
  
           
   | 
   | 
   | Hectorfloresite | 
  R080117 | 
  Na9(IO3)(SO4)4 | 
  Bob Jenkins  | 
  Pampa Rica, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Hectorite | 
  R050134 | 
  Na0.3(Mg,Li)3Si4O10(F,OH)2·nH2O | 
  University of Arizona Mineral Museum 10606 | 
  Hector, California, USA | 
  
           
   | 
   | 
   | Hedenbergite | 
  R050030 | 
  CaFe2+Si2O6 | 
  University of Arizona Mineral Museum 4120 | 
  Heroult, Ontario, Canada | 
  
           
   | 
   | 
   | Hedenbergite | 
  R060040 | 
  CaFe2+Si2O6 | 
  University of Arizona Mineral Museum 13444 | 
  Rio Marina, Elba, Italy | 
  
           
   | 
   | 
   | Hedenbergite | 
  R070136 | 
  CaFe2+Si2O6 | 
  Mark Mauthner 2426 | 
  Vesper Peak, Snohomish County, Washington, USA | 
  
           
   | 
   | 
   | Hedenbergite | 
  R070236 | 
  CaFe2+Si2O6 | 
  Michael Scott S104166 | 
  Dal'Negorsk, Primorskiy Kray; far eastern, Russia | 
  
           
   | 
   | 
   | Hedleyite | 
  R100114 | 
  Bi7Te3 | 
  Robert Woodside  | 
  Good Hope mine, Hedley, British Columbia, Canada | 
  
           
   | 
   | 
   | Heidornite | 
  R141086 | 
  Na2Ca3B5O8(SO4)2(OH)2Cl | 
  Rock Currier  | 
  Bahrenborstel, Hannover, Germany | 
  
           
   | 
   | 
   | Heinrichite | 
  R060254 | 
  Ba(UO2)2(AsO4)2·10H2O | 
  Michael Scott S100264 | 
  White King mine, 14 miles northwest of Lakeview, Lake County, Oregon, USA | 
  
           
   | 
   | 
   | Heisenbergite | 
  R140422 | 
  (UO2)(OH)2·H2O | 
  Thomas Theye  | 
  Menzenschwand, Southern Black Forest, Baden Württemberg, Germany | 
  
           
   | 
   | 
   | Heklaite | 
  R090034 | 
  KNaSiF6 | 
  Thomas P. Moore  | 
  Bone Valley district, Bartow, Polk County, Florida | 
  
           
   | 
   | 
   | Heklaite | 
  P001140 | 
  KNaSiF6 | 
  ScottLab P001140 | 
  Virtual | 
  
           
   | 
   | 
   | Hellandite-(Ce) | 
  R061013 | 
  (Ca,REE)4Ce2Al◻2(B4Si4O22)(OH)2 | 
  Michael Scott S102789 | 
  Campo Pefella, near Capranica, Viterbo, Latium, Italy | 
  
           
   | 
   | 
   | Hellyerite | 
  R061050 | 
  Ni(CO3)·6H2O | 
  Michael Scott S102799 | 
  Lord Brassy mine, Tasmania, Australia | 
  
           
   | 
   | 
   | Helvine | 
  R060059 | 
  Be3Mn2+4(SiO4)3S | 
  University of Arizona Mineral Museum 16161 | 
  Schwarzenberg, Saxony, Germany | 
  
           
   | 
   | 
   | Helvine | 
  R060621 | 
  Be3Mn2+4(SiO4)3S | 
  Michael Scott S100830 | 
  Foote mine, Kings Mountain District, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Hematite | 
  R040024 | 
  Fe2O3 | 
  University of Arizona Mineral Museum 12904 | 
  near Covered Wells, Papago Indian Reservation, Arizona, USA | 
  
           
   | 
   | 
   | Hematite | 
  X050102 | 
  Fe2O3 | 
  CIT - 2058 | 
  Michigan, USA | 
  
           
   | 
   | 
   | Hematite | 
  R050300 | 
  Fe2O3 | 
  Eugene Schlepp  | 
  Argentina | 
  
           
   | 
   | 
   | Hematite | 
  R060190 | 
  Fe2O3 | 
  Lloyd Twaites  | 
  Florence mine, Egremont, Cumbria, England | 
  
           
   | 
   | 
   | Hematite | 
  R070240 | 
  Fe2O3 | 
  Michael Scott S103456 | 
  Moshgai, Gobi Desert, Mongolia | 
  
           
   | 
   | 
   | Hematite | 
  R110013 | 
  Fe2O3 | 
  University of Arizona Mineral Museum UAMM6901 | 
  Itabira, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Hematophanite | 
  R070638 | 
  Pb4Fe3+3O8(Cl,OH) | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Hemihedrite | 
  R050551 | 
  ZnPb10(CrO4)6(SiO4)2(OH)2 | 
  Dave Bunk Minerals  | 
  Belmont Mountains, Wickenberg, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Hemihedrite | 
  R140133 | 
  ZnPb10(CrO4)6(SiO4)2(OH)2 | 
  Ron Gibbs  | 
  Florence mine, Ripsey Hill Area, Ripsey District, Tortilla Mts, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Hemihedrite | 
  R140134 | 
  ZnPb10(CrO4)6(SiO4)2(OH)2 | 
  Ron Gibbs  | 
  Rat Tail Claim, Wickenburg Area, Belmont Mts, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Hemihedrite | 
  R141184 | 
  ZnPb10(CrO4)6(SiO4)2(OH)2 | 
  Marcus Origlieri  | 
  Rat Tail Claim, Wickenburg Area, Belmont Mts, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Hemimorphite | 
  R040117 | 
  Zn4(Si2O7)(OH)2·H2O | 
  University of Arizona Mineral Museum 16325 | 
  Durango, Mexico | 
  
           
   | 
   | 
   | Hemimorphite | 
  R070536 | 
  Zn4(Si2O7)(OH)2·H2O | 
  James Shigley  | 
  Potosi mine, Santa Eulalia District, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Hemusite | 
  R061011 | 
  Cu1+4Cu2+2SnMoS8 | 
  Michael Scott S102801 | 
  Kawazu mine, Shizuoka, Japan | 
  
           
   | 
   | 
   | Hendersonite | 
  R070467 | 
  Ca1.3(V5+,V4+)6O16·6H2O | 
  Michael Scott S102170 | 
  Mineral Joe No. 1 mine, Paradox Valley, Uravan District, Montrose County, Colorado, USA | 
  
           
   | 
   | 
   | Henmilite | 
  R060257 | 
  Ca2Cu[B(OH)4]2(OH)4 | 
  Michael Scott S100323 | 
  Fuka mine, Okayama Prefecture, Honshu Island, Japan | 
  
           
   | 
   | 
   | Hennomartinite | 
  R130039 | 
  SrMn3+2(Si2O7)(OH)2·H2O | 
  William W. Pinch  | 
  Wessels mine, Kuruman, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Henritermierite | 
  R060253 | 
  Ca3Mn3+2(SiO4)2(OH)4 | 
  William W. Pinch  | 
  N'Chwaning mine, Kuruman, Kakahari mining area, Cape Province, South Africa | 
  
           
   | 
   | 
   | Hentschelite | 
  R061015 | 
  CuFe3+2(PO4)2(OH)2 | 
  Michael Scott S102792 | 
  Spring Creek Copper mine, South Australia, Australia | 
  
           
   | 
   | 
   | Herbertsmithite | 
  R060387 | 
  Cu3Zn(OH)6Cl2 | 
  Michael Scott S100103 | 
  San Francisco mine, Sierra Gorda, Antofagasta, Chile | 
  
           
   | 
   | 
   | Herbertsmithite | 
  R070099 | 
  Cu3Zn(OH)6Cl2 | 
  Michael Scott S105100 | 
  San Francisco mine, Sierra Gorda, Antofagasta, Chile | 
  
           
   | 
   | 
   | Hercynite | 
  R170038 | 
  Fe2+Al2O4 | 
  Rock Currier  | 
  LePrese, Veltlin, Switzerland | 
  
           
   | 
   | 
   | Hercynite | 
  R170039 | 
  Fe2+Al2O4 | 
  Rock Currier  | 
  Baldissero, Torino, Piemonte | 
  
           
   | 
   | 
   | Hercynite | 
  R170040 | 
  Fe2+Al2O4 | 
  Rock Currier  | 
  Lherz, Pyrenees, France | 
  
           
   | 
   | 
   | Herderite | 
  R100064 | 
  CaBe(PO4)F | 
  Luiz Menezes  | 
  Medina, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Hessite | 
  R060226 | 
  Ag2Te | 
  Michael Scott S100147 | 
  Bambollita mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Hessite | 
  R070445 | 
  Ag2Te | 
  Michael Scott S104392 | 
  Klondike mine, Findley Gulch (Findlay Gulch), Bonanza District, Saguache County, Colorado, USA | 
  
           
   | 
   | 
   | Hetaerolite | 
  R061062 | 
  ZnMn3+2O4 | 
  Bob Jenkins  | 
  Mohawk mine, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Heterogenite | 
  R050382 | 
  Co3+O(OH) | 
  University of Arizona Mineral Museum 7433 | 
  Goodsprings, Nevada, USA | 
  
           
   | 
   | 
   | Heterosite | 
  R050165 | 
  Fe3+(PO4) | 
  Marcus Origlieri  | 
  White Elephant mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Heterosite | 
  R070148 | 
  Fe3+(PO4) | 
  James Shigley  | 
  Pleasant Valley mine, near Fourmile, Black Hills, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Heulandite-Ca | 
  R040021 | 
  (Ca,Na,K)5(Si27Al9)O72·26H2O | 
  University of Arizona Mineral Museum 797 | 
  Prospect Park, Patterson, Passaic County, New Jersey, USA | 
  
           
   | 
   | 
   | Heulandite-Ca | 
  R050017 | 
  (Ca,Na,K)5(Si27Al9)O72·26H2O | 
  Eugene Schlepp  | 
  Poona, Maharashtra State, India | 
  
           
   | 
   | 
   | Heulandite-Ca | 
  R050097 | 
  (Ca,Na,K)5(Si27Al9)O72·26H2O | 
  John Cornish  | 
  Rat's Nest Claim, Custer County, Idaho, USA | 
  
           
   | 
   | 
   | Heulandite-Ca | 
  R050647 | 
  (Ca,Na,K)5(Si27Al9)O72·26H2O | 
  John Cornish  | 
  Rat's Nest Claim, Custer County, Idaho, USA | 
  
           
   | 
   | 
   | Heulandite-Ca | 
  R060465 | 
  (Ca,Na,K)5(Si27Al9)O72·26H2O | 
  Michael Scott S100214 | 
  Garrawilla, near Gunnadah, New South Wales, Australia | 
  
           
   | 
   | 
   | Heulandite-Ca | 
  R061012 | 
  (Ca,Na,K)5(Si27Al9)O72·26H2O | 
  Michael Scott S102804 | 
  Patterson, New Jersey, USA | 
  
           
   | 
   | 
   | Heulandite-K | 
  R061137 | 
  (K,Ca,Na)5(Si27Al9)O72·26H2O | 
  Michael Scott S102085 | 
  Albero Bassi, Vicenza, Veneto, Italy | 
  
           
   | 
   | 
   | Heulandite-Na | 
  R070281 | 
  (Na,Ca,K)6(Si,Al)36O72·22H2O | 
  Michael Scott S102084 | 
  Warm Spring Creek, Challis, Custer County, Idaho, USA | 
  
           
   | 
   | 
   | Heulandite-Sr | 
  R070272 | 
  (Sr,Ca,Na)5(Si27Al9)O72·24H2O | 
  Michael Scott S102090 | 
  Campegli mine, Campegli, Castiglione Chiavarese, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Hewettite | 
  R070428 | 
  CaV5+6O16·9H2O | 
  Michael Scott S102346 | 
  Gold Quarry mine (Maggie claims), Maggie Creek District, Eureka County, Nevada, USA | 
  
           
   | 
   | 
   | Hexahydrite | 
  R060051 | 
  Mg(SO4)·6H2O | 
  Kevin Righter  | 
  Weathered surface of a LL5 chondritic meteorite from Antarctica | 
  
           
   | 
   | 
   | Heyrovskýite | 
  R070010 | 
  Pb6Bi2S9 | 
  Michael Scott S100398 | 
  Hoerky, Rakovnika, Czech Republic | 
  
           
   | 
   | 
   | Hibonite | 
  R061069 | 
  CaAl12O19 | 
  Michael Scott S101443 | 
  Madagascar | 
  
           
   | 
   | 
   | Hidalgoite | 
  R180018 | 
  PbAl3(SO4)(AsO4)(OH)6 | 
  Mark Feinglos  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Hilairite | 
  R080098 | 
  Na2ZrSi3O9·3H2O | 
  William W. Pinch  | 
  St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Hilgardite | 
  R070426 | 
  Ca2B5O9Cl·H2O | 
  Michael Scott S102875 | 
  Boulby mine, Loftus, Cleveland, England, UK | 
  
           
   | 
   | 
   | Hilgardite | 
  R070427 | 
  Ca2B5O9Cl·H2O | 
  Michael Scott S104632 | 
  Boulby mine, Loftus, Cleveland, England, UK | 
  
           
   | 
   | 
   | Hillebrandite | 
  R110067 | 
  Ca2SiO3(OH)2 | 
  Renato & Adriana Pagano  | 
  Terneras mine, Velardeña, Velardeña District, Municipio de Cuencamé, Durango, Mexico | 
  
           
   | 
   | 
   | Hillite | 
  R061014 | 
  Ca2Zn(PO4)2·2H2O | 
  Michael Scott S101281 | 
  Reaphook Hill, South Australia | 
  
           
   | 
   | 
   | Hingganite-(Ce) | 
  R060857 | 
  BeCe(SiO4)(OH) | 
  Michael Scott S101013 | 
  Tatyana pegmatite, Haldzan Buregteg massif, Mongolia | 
  
           
   | 
   | 
   | Hingganite-(Y) | 
  R070466 | 
  BeY(SiO4)(OH) | 
  Michael Scott S102102 | 
  Tuften Quarry, Tvedalen, Larvik, Vestfold, Norway | 
  
           
   | 
   | 
   | Hingganite-(Y) | 
  R120171 | 
  BeY(SiO4)(OH) | 
  Ikram Mineralogy  | 
  Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan | 
  
           
   | 
   | 
   | Hiortdahlite | 
  R060092 | 
  Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3 | 
  University of Arizona Mineral Museum 2107 | 
  Vesuvius, Italy | 
  
           
   | 
   | 
   | Hiortdahlite | 
  R070514 | 
  Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3 | 
  James Shigley  | 
  Aroy, Langesundsfjord, near Larvik, Vestfold, Norway | 
  
           
   | 
   | 
   | Hisingerite | 
  R070126 | 
  Fe2Si2O5(OH)4·2H2O | 
  Lloyd Twaites LT 1487 | 
  Nickel Plate mine, Hedley, British Columbia, Canada | 
  
           
   | 
   | 
   | Hisingerite | 
  R070695 | 
  Fe2Si2O5(OH)4·2H2O | 
  James Shigley  | 
  Zinc Consolidated mine, Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Hocartite | 
  R130018 | 
  Ag2FeSnS4 | 
  William W. Pinch  | 
  Pirquitas mine, Jujuy Province, Argentina | 
  
           
   | 
   | 
   | Hochelagaite | 
  R110182 | 
  CaNb4O11·8H2O | 
  Donald Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Hodgkinsonite | 
  R140280 | 
  Zn2Mn2+(SiO4)(OH)2 | 
  Marcus Origlieri S104179 | 
  Parker Shaft, Franklin mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Hoelite | 
  R060874 | 
  C14H8O2 | 
  Michael Scott S100817 | 
  Kladno, Central Bohemia Region, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Hoganite | 
  R160076 | 
  Cu(CH3COO)2·H2O | 
  Marcus Origlieri  | 
  Courtland, Cochise County, Arizona | 
  
           
   | 
   | 
   | Hoganite | 
  R190035 | 
  Cu(CH3COO)2·H2O | 
  Robert Lavinsky  | 
  Holbrook Shaft, Level 100, Bisbee, Warren District, Cochise County, Arizona | 
  
           
   | 
   | 
   | Holdawayite | 
  R090029 | 
  Mn2+6(CO3)2(OH)7(Cl,OH) | 
  William W. Pinch  | 
  Kombat, Namibia | 
  
           
   | 
   | 
   | Holdenite | 
  R150129 | 
  Mn2+6Zn3(AsO4)2(SiO4)(OH)8 | 
  Marcus Origlieri  | 
  Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Holfertite | 
  R060595 | 
  (UO2)1.75Ca0.25TiO4·3H2O | 
  Michael Scott S100796 | 
  Searle Canyon, Thomas Range, Juab County, Utah, USA | 
  
           
   | 
   | 
   | Hollandite | 
  R060852 | 
  Ba(Mn4+6Mn3+2)O16 | 
  Michael Scott S100921 | 
  Ultevis, Sorharas, Sweden | 
  
           
   | 
   | 
   | Hollandite | 
  R070539 | 
  Ba(Mn4+6Mn3+2)O16 | 
  James Shigley  | 
  Tangen mine, Hurdalsjoen, Nannestad, Akershus, Norway | 
  
           
   | 
   | 
   | Holmquistite | 
  R070004 | 
  ◻Li2(Mg3Al2)Si8O22(OH)2 | 
  Michael Scott S103127 | 
  Uto, Sodermanland, Sweden | 
  
           
   | 
   | 
   | Holmquistite | 
  R130004 | 
  ◻Li2(Mg3Al2)Si8O22(OH)2 | 
  Don Doell  | 
  Quebec Lithium Corporation mine, La Corne, Abitibi RCM, Abitibi-Temiscamingue, Quebec, Canada | 
  
           
   | 
   | 
   | Holtedahlite | 
  R060710 | 
  Mg12(PO3OH,CO3)(PO4)5(OH,O)6 | 
  Bob Jenkins  | 
  Tingelstadtjern, Modum, Norway | 
  
           
   | 
   | 
   | Holtite | 
  R061049 | 
  (Ta0.6◻0.4)Al6BSi3O18 | 
  Michael Scott S100998 | 
  Kola Peninsula, U.S.S.R. | 
  
           
   | 
   | 
   | Holtstamite | 
  R170001 | 
  Ca3Al2(SiO4)2(OH)4 | 
  Paul Botha  | 
  Wessels mine, Kalahari manganese field, South Africa | 
  
           
   | 
   | 
   | Hopeite | 
  R050254 | 
  Zn3(PO4)2·4H2O | 
  Marcus Origlieri  | 
  Broken Hill mine, Kabwe, Zambia | 
  
           
   | 
   | 
   | Hopeite | 
  R130562 | 
  Zn3(PO4)2·4H2O | 
  Eric van Valkenburg  | 
  Broken Hill mine, Kabwe, Zambia | 
  
           
   | 
   | 
   | Hörnesite | 
  R060724 | 
  Mg3(AsO4)2·8H2O | 
  Bob Jenkins  | 
  Huercal Overa, Almeria Province, Spain | 
  
           
   | 
   | 
   | Hörnesite | 
  R070336 | 
  Mg3(AsO4)2·8H2O | 
  Michael Scott S101269 | 
  Ayers, Val d' Anniviers, Wallis, Switzerland | 
  
           
   | 
   | 
   | Howardevansite | 
  R130739 | 
  NaCu2+Fe3+2(VO4)3 | 
  Rock Currier  | 
  'Y' Fumerol, Izalco Volcano, Sonsonate Department, El Salvador | 
  
           
   | 
   | 
   | Howieite | 
  R060031 | 
  Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10 | 
  University of Arizona Mineral Museum 5923 | 
  Laytonville quarry, near Longvale, California, USA | 
  
           
   | 
   | 
   | Howieite | 
  R061009 | 
  Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10 | 
  Michael Scott S101047 | 
  Quarry on north side of U.S. 101, 5 miles south of Laytonville, Mendocino County, California, USA | 
  
           
   | 
   | 
   | Howlite | 
  R050588 | 
  Ca2SiB5O9(OH)5 | 
  Rock Currier  | 
  Lake Bras d'Or, Iona, Cape Breton Island, Victoria County, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Howlite | 
  R110150 | 
  Ca2SiB5O9(OH)5 | 
  Donald M Doell and Brian Roulston  | 
  Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Hsianghualite | 
  R060722 | 
  Li2Ca3Be3(SiO4)3F2 | 
  Bob Jenkins and George Guanghua Liu  | 
  Xianghualing mine near Zenzhou, Hunan Province, China | 
  
           
   | 
   | 
   | Hubeite | 
  R060964 | 
  Ca2Mn2+Fe3+Si4O12(OH)·2H2O | 
  Michael Scott S101379 | 
  Fengjiashan mine, Daye, Hubei Province, China | 
  
           
   | 
   | 
   | Hübnerite | 
  R050069 | 
  Mn2+(WO4) | 
  Rock Currier  | 
  Yaogangxian, Yizhang County, Hunan Province, China | 
  
           
   | 
   | 
   | Hübnerite | 
  R050139 | 
  Mn2+(WO4) | 
  Dave Bunk Minerals  | 
  Pasto Bueno District, Pallasca Province, Ancash Department, Peru | 
  
           
   | 
   | 
   | Hübnerite | 
  R050556 | 
  Mn2+(WO4) | 
  Dave Bunk Minerals  | 
  Pasto Bueno, Ancash Department, Peru | 
  
           
   | 
   | 
   | Hübnerite | 
  R060900 | 
  Mn2+(WO4) | 
  Michael Scott S100974 | 
  near Kara-Oba Deposit, Kazakhstan | 
  
           
   | 
   | 
   | Huemulite | 
  R170005 | 
  Na4MgV5+10O28·24H2O | 
  Bob Jenkins  | 
  Burro Mine, West Workings, Slick Rock District, San Miguel County, Colorado, USA | 
  
           
   | 
   | 
   | Hughesite | 
  R130080 | 
  Na3AlV10O28·22H2O | 
  John Rakovan  | 
  Sunday mine, Gypsum Valley, San Miguel County, Slick Rock District, Colorado, USA | 
  
           
   | 
   | 
   | Hulsite | 
  R070453 | 
  Fe2+2Fe3+O2(BO3) | 
  Michael Scott S102349 | 
  Titovskoye B deposit, Tas-Khayakhtakh Range, Polar Yakutia, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Hulsite | 
  R070537 | 
  Fe2+2Fe3+O2(BO3) | 
  James Shigley  | 
  Brooks Mountain, Seward Peninsula, Nome Borough, Alaska, USA | 
  
           
   | 
   | 
   | Hulsite | 
  R130016 | 
  Fe2+2Fe3+O2(BO3) | 
  Robert Lavinsky  | 
  Brooks Mountain, Seward Peninsula, Nome Borough, Alaska, USA | 
  
           
   | 
   | 
   | Humberstonite | 
  R060718 | 
  K3Na7Mg2(SO4)6(NO3)2·6H2O | 
  Bob Jenkins  | 
  Officina Alemania, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Humboldtine | 
  R130689 | 
  Fe2+(C2O4)·2H2O | 
  Bob Jenkins  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Humboldtine | 
  R170002 | 
  Fe2+(C2O4)·2H2O | 
  Donald Doell  | 
  Zomba, Malawi | 
  
           
   | 
   | 
   | Humite | 
  R040071 | 
  Mg7(SiO4)3F2 | 
  University of Arizona Mineral Museum 2227 | 
  Tilly Foster mine, Brewster, Putnam County, New York, USA | 
  
           
   | 
   | 
   | Humite | 
  R050665 | 
  Mg7(SiO4)3F2 | 
  University of Arizona Mineral Museum  | 
  Tilly Foster mine, Brewster, Putnam County, New York, USA | 
  
           
   | 
   | 
   | Hummerite | 
  R070450 | 
  KMgV5+5O14·8H2O | 
  Michael Scott S100599 | 
  Hummer mine, Jo Dandy mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose County, Colorado, USA | 
  
           
   | 
   | 
   | Huntite | 
  R040126 | 
  CaMg3(CO3)4 | 
  University of Arizona Mineral Museum 8731 | 
  Crestmore Quarry, Riverside County, California, USA | 
  
           
   | 
   | 
   | Huntite | 
  P000080 | 
  CaMg3(CO3)4 | 
  ScottLab P000080 | 
  Virtual | 
  
           
   | 
   | 
   | Hureaulite | 
  R070452 | 
  Mn2+5(PO3OH)2(PO4)2·4H2O | 
  Michael Scott S102347 | 
  Tip Top mine, Fourmile, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Hureaulite | 
  R090070 | 
  Mn2+5(PO3OH)2(PO4)2·4H2O | 
  Royal Ontario Museum  M54960 | 
  Cigana Mine (ex-Jocão Mine), Galiléia, Minas Gerais  Brazil | 
  
           
   | 
   | 
   | Hurlbutite | 
  R070612 | 
  CaBe2(PO4)2 | 
  James Shigley  | 
  Viitaniemi, Erajarvi, Orivesi, Etela-Suomen Laani, Finland | 
  
           
   | 
   | 
   | Hurlbutite | 
  R090048 | 
  CaBe2(PO4)2 | 
  University of Arizona Mineral Museum 1636  | 
  Smith mine, Chandler's Mill, Newport, New Hampshire | 
  
           
   | 
   | 
   | Hutchinsonite | 
  R060789 | 
  TlPbAs5S9 | 
  Michael Scott S101056 | 
  Peru | 
  
           
   | 
   | 
   | Huttonite | 
  X050103 | 
  Th(SiO4) | 
  Caltech  | 
  synthetic, grown by Boatner 1963 | 
  
           
   | 
   | 
   | Hydroboracite | 
  R060713 | 
  CaMg[B3O4(OH)3]2·3H2O | 
  Bob Jenkins  | 
  Sijes, Salta Province, Argentina | 
  
           
   | 
   | 
   | Hydroboracite | 
  R060866 | 
  CaMg[B3O4(OH)3]2·3H2O | 
  Michael Scott S101002 | 
  Thompson mine, Death Valley, California, USA | 
  
           
   | 
   | 
   | Hydrocerussite | 
  R160062 | 
  Pb3(CO3)2(OH)2 | 
  University of Arizona Mineral Museum 12 | 
  Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Hydrocerussite | 
  R070059 | 
  Pb3(CO3)2(OH)2 | 
  William W. Pinch  | 
  Wanlockhead, Scotland | 
  
           
   | 
   | 
   | Hydrocerussite | 
  R080104 | 
  Pb3(CO3)2(OH)2 | 
  Evan Jones  | 
  St. Anthony deposit, Tiger, Mammoth District, Pinal County, Arizona | 
  
           
   | 
   | 
   | Hydrokenoelsmoreite | 
  R061044 | 
  ◻2W2O6(H2O) | 
  Michael Scott S101387 | 
  Hemerdon mine, Sparkwell, Plympton, Devon, England | 
  
           
   | 
   | 
   | Hydrokenoralstonite | 
  R060012 | 
  ◻2Al2F6(H2O) | 
  University of Arizona Mineral Museum 2884 | 
  Ivigtut, Greenland | 
  
           
   | 
   | 
   | Hydromagnesite | 
  R060011 | 
  Mg5(CO3)4(OH)2·4H2O | 
  University of Arizona Mineral Museum 5218 | 
  Paradise Range, Nye County, Nevada, USA | 
  
           
   | 
   | 
   | Hydromagnesite | 
  R220007 | 
  Mg5(CO3)4(OH)2·4H2O | 
  Joan Rosell-Riba, Jordi Ibáñez (Geo3Bcn-CSIC), Tariq Jawhari (CCiTUB)  | 
  Correc d'en Llinassos, Oms, Céret, Pyrénées-Orientales, Occitanie, France | 
  
           
   | 
   | 
   | Hydroniumjarosite | 
  R060402 | 
  (H3O)Fe3+3(SO4)2(OH)6 | 
  American Museum of Natural History 21997 | 
  Cyprus, Greece | 
  
           
   | 
   | 
   | Hydropyrochlore | 
  R060980 | 
  (H2O,◻)2Nb2(O,OH)6(H2O) | 
  Bob Jenkins  | 
  Lueshe mine, Kivu, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Hydroromarchite | 
  R090060 | 
  Sn2+3O2(OH)2 | 
  Joe Zullo S1 SA526-1 | 
  Hooggenoeg Fm., Barberton Greenstone Belt, South Africa | 
  
           
   | 
   | 
   | Hydrotalcite | 
  R050457 | 
  Mg6Al2CO3(OH)16(H2O)4 | 
  University of Arizona Mineral Museum 2896 | 
  Snarum, Norway | 
  
           
   | 
   | 
   | Hydrotalcite | 
  R060527 | 
  Mg6Al2CO3(OH)16(H2O)4 | 
  Michael Scott S100217 | 
  Jacupiranga Pegmatite, Sao Paulo State, Brazil | 
  
           
   | 
   | 
   | Hydrotungstite | 
  R120058 | 
  WO2(OH)2·H2O | 
  Bob Jenkins  | 
  Mundo Nuevo, La Libertad, Peru | 
  
           
   | 
   | 
   | Hydroxyapophyllite-(K) | 
  R050169 | 
  KCa4Si8O20(OH,F)·8H2O | 
  Marcus Origlieri  | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Hydroxyapophyllite-(K) | 
  R110121 | 
  KCa4Si8O20(OH,F)·8H2O | 
  Marcus Origlieri  | 
  Kandivali quarry, Malad (near Poona), Marashtra State, India | 
  
           
   | 
   | 
   | Hydroxycalciomicrolite | 
  R130269 | 
  Ca1.5Ta2O6(OH) | 
  Marcelo Andrade  | 
  Volta Grande, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Hydroxykenoelsmoreite | 
  R200006 | 
  (◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH) | 
  Bob Jenkins  | 
  A small prospect, 1.5 miles NW of the Vulture mine, Vulture Mountains, Maricopa County, Arizona, USA. | 
  
           
   | 
   | 
   | Hydroxykenomicrolite | 
  R061058 | 
  (◻,Na,Sb3+)2Ta2O6(OH) | 
  Michael Scott S100986 | 
  Mt. Vasin-Myl'k, Voron'ya Tundra, Russia | 
  
           
   | 
   | 
   | Hydroxylapatite | 
  R050512 | 
  Ca5(PO4)3OH | 
  American Museum of Natural History 15214 | 
  Moneta Island, Mayeguez, Puerto Rico, USA | 
  
           
   | 
   | 
   | Hydroxylapatite | 
  R060180 | 
  Ca5(PO4)3OH | 
  Julian Gray  | 
  Holly Springs, Georgia, USA | 
  
           
   | 
   | 
   | Hydroxylapatite | 
  R100225 | 
  Ca5(PO4)3OH | 
  Luiz Menezes  | 
  Sapo mine, Goiabeira, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Hydroxylapatite | 
  R130713 | 
  Ca5(PO4)3OH | 
  Robert Lavinsky  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Hydroxylbastnäsite-(Ce) | 
  R060283 | 
  Ce(CO3)(OH) | 
  Herb Obodda 084 | 
  Trimouns, Luzenac, France | 
  
           
   | 
   | 
   | Hydroxylclinohumite | 
  R060291 | 
  Mg9(SiO4)4(OH)2 | 
  Herb Obodda 097 | 
  Koksha Valley, Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Hydroxylellestadite | 
  R060769 | 
  Ca5(SiO4)1.5(SO4)1.5OH | 
  Michael Scott S101069 | 
  Crestmore, Riverside County, California, USA | 
  
           
   | 
   | 
   | Hydroxylhedyphane | 
  R070425 | 
  Ca2Pb3(AsO4)3(OH) | 
  Michael Scott S102181 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Hydroxylherderite | 
  R050518 | 
  CaBe(PO4)(OH) | 
  University of Arizona Mineral Museum 2386 | 
  Mt. Apatite, Auburn, Maine, USA | 
  
           
   | 
   | 
   | Hydroxylherderite | 
  R050520 | 
  CaBe(PO4)(OH) | 
  University of Arizona Mineral Museum 10309 | 
  Virgem da Lapa, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Hydroxylherderite | 
  R060353 | 
  CaBe(PO4)(OH) | 
  Herb Obodda 020 | 
  Shigar Valley, northeast of Skardu, Baltistan, Pakistan | 
  
           
   | 
   | 
   | Hydroxylherderite | 
  R070451 | 
  CaBe(PO4)(OH) | 
  Michael Scott S102803 | 
  Fletcher mine, Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Hydroxylpyromorphite | 
  R200007 | 
  Pb5(PO4)3(OH) | 
  Warren Lazar  | 
  Western end of Pusch Ridge in the Santa Catalina Mountains, north of Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Hydroxymcglassonite-(K) | 
  R200004 | 
  KSr4Si8O20(OH)·8H2O | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Hydrozincite | 
  R050635 | 
  Zn5(CO3)2(OH)6 | 
  University of Arizona Mineral Museum 13438 | 
  Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Idrialite | 
  R060466 | 
  C22H14 | 
  Michael Scott S100175 | 
  Skaggs Springs, Sonoma County, California, USA | 
  
           
   | 
   | 
   | Iimoriite-(Y) | 
  R070457 | 
  Y2(SiO4)(CO3) | 
  Michael Scott S101925 | 
  I and L No. 4 claim, Bokan Mountain, Prince of Wales Island, Prince of Wales-Outer Ketchikan Borough, Alaska, USA | 
  
           
   | 
   | 
   | Ilesite | 
  R080073 | 
  Mn2+(SO4)·4H2O | 
  Michael Scott S100896 | 
  McDonnell claim, Hell's Valley, Park County, Colorado, USA | 
  
           
   | 
   | 
   | Ilesite | 
  R070494 | 
  Mn2+(SO4)·4H2O | 
  Michael Scott S102831 | 
  Chvaletice, Pardubice Region, Bohemia (Böhmen; Boehmen), Czech Republic | 
  
           
   | 
   | 
   | Illite | 
  R180024 | 
  (K,H3O)Al2(Si3Al)O10(H2O,OH)2 | 
  Ward's Natural Science Establishment, Inc.  | 
  Fithian, Illinois, USA | 
  
           
   | 
   | 
   | Ilmenite | 
  R060149 | 
  Fe2+Ti4+O3 | 
  Marcus Origlieri  | 
  Faraday Property, Bancroft District, Ontario, Canada | 
  
           
   | 
   | 
   | Ilmenite | 
  R130214 | 
  Fe2+Ti4+O3 | 
  Don Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Ilsemannite | 
  R070513 | 
  Mo3O8·nH2O (?) | 
  Michael Scott S102885 | 
  Osamu Utsumi Mine, Poços de Caldas, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Ilvaite | 
  R050040 | 
  CaFe3+Fe2+2O(Si2O7)(OH) | 
  University of Arizona Mineral Museum 2949 | 
  Capo Calamita, Isle of Elba, Italy | 
  
           
   | 
   | 
   | Ilvaite | 
  R060474 | 
  CaFe3+Fe2+2O(Si2O7)(OH) | 
  Michael Scott S100345 | 
  Dal 'Negorsk, Primorskiy, Kray, Russia | 
  
           
   | 
   | 
   | Imandrite | 
  R070027 | 
  Na12Ca3Fe3+2Si12O36 | 
  Michael Scott S105066 | 
  Vuonnemijok River, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Imayoshiite | 
  R210019 | 
  Ca3Al(CO3)[B(OH)4](OH)6·12H2O | 
  Hercule Shen  | 
  Shijiangshan Pb-Zn mine, Keshiketeng Co., Chifeng City, Inner Mongolia, China | 
  
           
   | 
   | 
   | Imiterite | 
  R080014 | 
  Ag2HgS2 | 
  Michael Scott S101283 | 
  Imiter, Morocco | 
  
           
   | 
   | 
   | Inderborite | 
  R060871 | 
  CaMg[B3O3(OH)5]2·6H2O | 
  Michael Scott S101031 | 
  TL, Inder, Kazakhstan | 
  
           
   | 
   | 
   | Inderite | 
  R050195 | 
  MgB3O3(OH)5·5H2O | 
  Dave Bunk Minerals  | 
  Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Indialite | 
  R140777 | 
  Mg2Al3(AlSi5)O18 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Indium | 
  R060771 | 
  In | 
  Michael Scott S101374 | 
  Eastern Transbaikal, Russia | 
  
           
   | 
   | 
   | Inesite | 
  R070456 | 
  Ca2Mn2+7Si10O28(OH)2·5H2O | 
  Michael Scott S101923 | 
  Fengjiashan mine (Daye Copper mine), Daye County, Huangshi Prefecture, Hubei Province, China | 
  
           
   | 
   | 
   | Inesite | 
  R090030 | 
  Ca2Mn2+7Si10O28(OH)2·5H2O | 
  James Shigley  | 
  Hale Creek Mine, Mad River Ridge, Hale Creek, Trinity County, California, USA | 
  
           
   | 
   | 
   | Ingersonite | 
  R210001 | 
  Ca3Mn2+Sb5+4O14 | 
  Markus and Stefan Wiklund  | 
  Langban mine, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Insizwaite | 
  R070743 | 
  PtBi2 | 
  Michael Scott S103264 | 
  Strathcona Mine, Levack, Sudbury District (Sudbury Complex; Sudbury nickel irruptive), Ontario, Canada | 
  
           
   | 
   | 
   | Inyoite | 
  R040161 | 
  CaB3O3(OH)5·4H2O | 
  University of Arizona Mineral Museum 8975 | 
  Kramer deposit, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Inyoite | 
  R050157 | 
  CaB3O3(OH)5·4H2O | 
  Jim McGlasson  | 
  Sijes, Salta, Argentina | 
  
           
   | 
   | 
   | Iodargyrite | 
  R080017 | 
  AgI | 
  Michael Scott S100883 | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Iodargyrite | 
  R061056 | 
  AgI | 
  Bob Jenkins  | 
  Capitana, Chile | 
  
           
   | 
   | 
   | Iowaite | 
  R060272 | 
  Mg6Fe3+2(OH)16Cl2·4H2O | 
  Michael Scott S100180 | 
  Palabora open pit, Phalaborwa, Transvaal, Republic of South Africa | 
  
           
   | 
   | 
   | Iowaite | 
  R120110 | 
  Mg6Fe3+2(OH)16Cl2·4H2O | 
  Marcus Origlieri  | 
  Kaznakhtinskiy Range, Altai Mountains, Russia | 
  
           
   | 
   | 
   | Iquiqueite | 
  R060822 | 
  K3Na4Mg(CrO4)B24O39(OH)·12H2O | 
  Michael Scott S101264 | 
  Salar de Miraje, Pampa de Tamanigal, Atacama, Chile | 
  
           
   | 
   | 
   | Iranite | 
  R060781 | 
  CuPb10(CrO4)6(SiO4)2(OH)2 | 
  Michael Scott S101072 | 
  Chapacase mine, Sierra Cerillos district, Tocopilla, Chile | 
  
           
   | 
   | 
   | Iridium | 
  R070258 | 
  Ir | 
  Michael Scott S102878 | 
  Fox Gulch, Salmon River - Red Mountain district, Goodnews Bay, Bethel Borough, Alaska, USA | 
  
           
   | 
   | 
   | Iriginite | 
  R060269 | 
  (UO2)Mo6+2O7·3H2O | 
  Michael Scott S100240 | 
  Hervey's Range Deposit, 55 kilometers west of Townsville, Queensland, Australia | 
  
           
   | 
   | 
   | Iron | 
  R070255 | 
  Fe | 
  Michael Scott S101919 | 
  Camp Creek district, Silver Bow County, Montana, USA | 
  
           
   | 
   | 
   | Ishikawaite | 
  R070496 | 
  (U,Fe,Y)NbO4 | 
  Michael Scott S101918 | 
  Standpipe Hill mines, Topsham, Sagadahoc County, Maine, USA | 
  
           
   | 
   | 
   | Isocubanite | 
  R090050 | 
  CuFe2S3 | 
  Lloyd Twaites LT1378  | 
  Henderson #2 mine, Chibougamau, Quebec, Canada | 
  
           
   | 
   | 
   | Isoferroplatinum | 
  R080067 | 
  Pt3Fe | 
  Michael Scott S102376 | 
  Chocó Department, Colombia | 
  
           
   | 
   | 
   | Isokite | 
  R070526 | 
  CaMg(PO4)F | 
  University of Arizona Mineral Museum 4797 | 
  Kjorrestad, near Bamle, Norway | 
  
           
   | 
   | 
   | Itsiite | 
  R160010 | 
  Ba2Ca(BSi2O7)2 | 
  Gunnar Färber  | 
  Gun claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Ixiolite-(Mn2+) | 
  R070289 | 
  (Ta2/3Mn2+1/3)O2 | 
  Michael Scott S105141 | 
  Voroni Tundra, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Ixiolite-(Mn2+) | 
  R070495 | 
  (Ta2/3Mn2+1/3)O2 | 
  Michael Scott S105768 | 
  Alto Ligonha pegmatite, Alto Ligonha District, Zambezia Province, Mozambique | 
  
           
   | 
   | 
   | Izoklakeite | 
  R110044 | 
  Pb26.4(Cu,Fe)2(Sb,Bi)19.6S57 | 
  Mark Feinglos  | 
  Crabtree quarry, Wake County, North Carolina, USA | 
  
           
   | 
   | 
   | Jacobsite | 
  R060780 | 
  Mn2+Fe3+2O4 | 
  Michael Scott S101292 | 
  Jakobsberg, Sweden | 
  
           
   | 
   | 
   | Jacobsite | 
  R070719 | 
  Mn2+Fe3+2O4 | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Jacobsite | 
  R120170 | 
  Mn2+Fe3+2O4 | 
  Marshall Sussman  | 
  N'Chwaning Mine III, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Jadeite | 
  R050220 | 
  NaAlSi2O6 | 
  Hatt Yoder  | 
  Clear Creek, San Benito County, California, USA | 
  
           
   | 
   | 
   | Jadeite | 
  R070117 | 
  NaAlSi2O6 | 
  Michael Scott S100409 | 
  Tawmaw (Tawhmaw; Taw Maw), Myitkyina-Mogaung District, Kachin State, Myanmar (Burma) | 
  
           
   | 
   | 
   | Jagoite | 
  R090028 | 
  Pb18Fe3+4[Si4(Si,Fe3+)6][Pb4Si16(Si,Fe)4]O82Cl6 | 
  William W. Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Jagowerite | 
  R070327 | 
  BaAl2(PO4)2(OH)2 | 
  Mark Mauthner 632 | 
  Jagowerite occurrence, Hess River area, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Jahnsite-(CaMnFe) | 
  R060310 | 
  CaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O | 
  Michael Scott S100177 | 
  Hagendorf Sud, Hessen, Bavaria, Germany | 
  
           
   | 
   | 
   | Jahnsite-(CaMnFe) | 
  R070733 | 
  CaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O | 
  Michael Scott S104150 | 
  Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Jahnsite-(CaMnMg) | 
  R060213 | 
  CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2O | 
  Marcus Origlieri  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Jahnsite-(CaMnMn) | 
  R080072 | 
  CaMn2+Mn2+2Fe3+2(PO4)4(OH)2·8H2O | 
  Tom Loomis TL-42 | 
  Tip Top mine, Custer Country, South Dakota, USA | 
  
           
   | 
   | 
   | Jamborite | 
  R070619 | 
  Ni2+1-xCo3+x(OH)2-x(SO4)x·nH2O [x ≤ 1/3 n; ≤ (1-x)] | 
  Joan Abella i Creus  | 
  Eugenia mine, Bellmunt del Priorat, Tarragona, Catalonia, Spain | 
  
           
   | 
   | 
   | Jamesite | 
  R060274 | 
  Pb2ZnFe3+2(Fe3+,Zn)4(AsO4)4(OH)8(OH,O)2 | 
  Michael Scott S100195 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Jamesonite | 
  R050430 | 
  Pb4FeSb6S14 | 
  University of Arizona Mineral Museum 13241 | 
  Zacatecas, Mexico | 
  
           
   | 
   | 
   | Jamesonite | 
  R050431 | 
  Pb4FeSb6S14 | 
  University of Arizona Mineral Museum 3552 | 
  Trinacria mine, Lake Poopo, Oruro, Bolivia | 
  
           
   | 
   | 
   | Jamesonite | 
  R050432 | 
  Pb4FeSb6S14 | 
  University of Arizona Mineral Museum 15930 | 
  San Jose mine, Oruro District, Bolivia | 
  
           
   | 
   | 
   | Jamesonite | 
  R050481 | 
  Pb4FeSb6S14 | 
  California Institute of Technology  | 
  Itos mine, Oruro City, Bolivia | 
  
           
   | 
   | 
   | Janhaugite | 
  R070731 | 
  Na3Mn2+3Ti2(Si2O7)2(O,OH,F)4 | 
  Michael Scott S102923 | 
  Gjerdingselva (Gjerdingen), Nordmarka, Lunner, Oppland, Norway | 
  
           
   | 
   | 
   | Jarlite | 
  R050667 | 
  Na2(Sr,Na)14(Mg,◻)2Al12F64(OH)4 | 
  University of Arizona Mineral Museum 10118 | 
  Ivigtut, Greenland | 
  
           
   | 
   | 
   | Jarosite | 
  X050105 | 
  KFe3+3(SO4)2(OH)6 | 
  Caltech  | 
  Barium Queen mine, Barstow, California, USA | 
  
           
   | 
   | 
   | Jarosite | 
  X050106 | 
  KFe3+3(SO4)2(OH)6 | 
  Caltech  | 
  near Calico Hills, Barstow, California, USA | 
  
           
   | 
   | 
   | Jarosite | 
  R060113 | 
  KFe3+3(SO4)2(OH)6 | 
  University of Arizona Mineral Museum 9868 | 
  Iron Blossom mine, East Tintic District, Eureka, Utah, USA | 
  
           
   | 
   | 
   | Jarosite | 
  R060236 | 
  KFe3+3(SO4)2(OH)6 | 
  Michael Scott S100148 | 
  Gold Hill, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Jarosite | 
  R070493 | 
  KFe3+3(SO4)2(OH)6 | 
  Bob Jenkins  | 
  Maria Josefa mine, Rhodalquilar, Almeria Province, Spain | 
  
           
   | 
   | 
   | Jasmundite | 
  R060805 | 
  Ca11O2(SiO4)4S | 
  Michael Scott S101260 | 
  Bellerberg, Eifel Mts., Germany | 
  
           
   | 
   | 
   | Jeanbandyite | 
  R070724 | 
  Fe3+Sn(OH)5O | 
  Michael Scott S104148 | 
  Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Bustillos Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | Jensenite | 
  R080008 | 
  Cu2+3Te6+O6·2H2O | 
  William W. Pinch  | 
  Montezuma mine, Sonora, Mexico | 
  
           
   | 
   | 
   | Jeremejevite | 
  X050107 | 
  Al6(BO3)5F3 | 
  G.R. Rossman 1557 | 
  Namibia | 
  
           
   | 
   | 
   | Jeremejevite | 
  R060533 | 
  Al6(BO3)5F3 | 
  Gemological Institute of America 30222 | 
  Erongo Mountains, Nambia | 
  
           
   | 
   | 
   | Jeremejevite | 
  R060617 | 
  Al6(BO3)5F3 | 
  Michael Scott S100825 | 
  Ameib Farm, Usakos, Karibib District, Erongo Region, Namibia | 
  
           
   | 
   | 
   | Jerrygibbsite | 
  R070726 | 
  Mn2+9(SiO4)4(OH)2 | 
  Michael Scott S104179 | 
  Parker Shaft, Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Jerrygibbsite | 
  R100042 | 
  Mn2+9(SiO4)4(OH)2 | 
  William W Pinch  | 
  Kombat mine, Otavi Mountains, Namibia | 
  
           
   | 
   | 
   | Jimkrieghite | 
  R220012 | 
  Ca(C2H3O3)2 | 
  Warren Lazar  | 
  Western end of Pusch Ridge in the Santa Catalina Mountains, north of Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Jinshajiangite | 
  R060580 | 
  BaNaFe2+4Ti2(Si2O7)2O2(OH)2F | 
  Michael Scott S100809 | 
  Norra Karr, Sweden | 
  
           
   | 
   | 
   | Jinshajiangite | 
  R061018 | 
  BaNaFe2+4Ti2(Si2O7)2O2(OH)2F | 
  Pingqiu Fu  | 
  Jinshajiang River, western Sichuan Province, China | 
  
           
   | 
   | 
   | Jinshajiangite | 
  R130031 | 
  BaNaFe2+4Ti2(Si2O7)2O2(OH)2F | 
  Don Doell DD 13-05 | 
  Dmitrievka village, Mariupol' Massif, Azov Sea Region, Donets'k Oblast', Ukraine | 
  
           
   | 
   | 
   | Joaquinite-(Ce) | 
  X050026 | 
  NaBa2Fe2+Ti2Ce2(Si4O12)2O2(OH)·H2O | 
  G.R. Rossman 1538 | 
  San Benito, California, USA | 
  
           
   | 
   | 
   | Joaquinite-(Ce) | 
  R120101 | 
  NaBa2Fe2+Ti2Ce2(Si4O12)2O2(OH)·H2O | 
  Bob Jenkins  | 
  Gem mine, San Benito County, California, USA | 
  
           
   | 
   | 
   | Joesmithite | 
  R120157 | 
  Pb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2 | 
  Rock Currier  | 
  Ramsorten drift, Langban, Sweden | 
  
           
   | 
   | 
   | Johachidolite | 
  R070640 | 
  CaAlB3O7 | 
  Marcus Origlieri  | 
  Pyant Gyi mine, Mogok Stone Tract, Mandalay Division, Burma | 
  
           
   | 
   | 
   | Johannite | 
  R070061 | 
  Cu(UO2)2(SO4)2(OH)2·8H2O | 
  William W. Pinch  | 
  Joachimstal, Bohemia | 
  
           
   | 
   | 
   | Johannsenite | 
  R140753 | 
  CaMnSi2O6 | 
  Rock Currier  | 
  Franklin, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Johannsenite | 
  R150013 | 
  CaMnSi2O6 | 
  Paul Botha  | 
  Wessels mine, Kalahari manganese field, South Africa | 
  
           
   | 
   | 
   | Johnbaumite | 
  R070753 | 
  Ca5(AsO4)3(OH) | 
  Michael Scott S102926 | 
  Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Johninnesite | 
  R060249 | 
  Na2Mn2+9Mg7(AsO4)2(Si6O17)2(OH)8 | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Jôkokuite | 
  R070102 | 
  Mn2+(SO4)·5H2O | 
  Michael Scott S105067 | 
  Jokoku mine, Hokkaido, Japan | 
  
           
   | 
   | 
   | Jonesite | 
  R070735 | 
  KBa2Ti2(Si5Al)O18·nH2O | 
  Michael Scott S103267 | 
  Dallas Gem Mine (Gem Mine; Benitoite Mine), New Idria District, San Benito County, California, USA | 
  
           
   | 
   | 
   | Jonesite | 
  R080005 | 
  KBa2Ti2(Si5Al)O18·nH2O | 
  Michael Scott S101067 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Jordanite | 
  R070723 | 
  Pb14As6S23 | 
  Michael Scott S102054 | 
  Lengenbach quarry, Binntal, Wallis (Valais), Switzerland | 
  
           
   | 
   | 
   | Jordisite | 
  R060864 | 
  MoS2 | 
  Michael Scott S100863 | 
  Bleiberg, Karnten, Osterreich, Austria | 
  
           
   | 
   | 
   | Jørgensenite | 
  R100009 | 
  Na2Sr14Na2Al12F64(OH)4 | 
  William Pinch  | 
  Ivigtut, Frederikshab District, South West Greenland | 
  
           
   | 
   | 
   | Joséite-A | 
  R060963 | 
  Bi4TeS2 | 
  Michael Scott S101439 | 
  Tanza mine, Potosi deptmartment, Bolivia | 
  
           
   | 
   | 
   | Jouravskite | 
  R110012 | 
  Ca3Mn4+(SO4)(CO3)(OH)6·12H2O | 
  William Pinch  | 
  Wessels mine, Kurumen, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Juabite | 
  R220005 | 
  CaCu10(Te4+O3)4(AsO4)4(OH)2·4H2O | 
  Daniel Evanich  | 
  Pittsburg-Liberty Mine, New York Hill, Masonic Mining District, Bodie Hills, Mono Co., California, USA | 
  
           
   | 
   | 
   | Juangodoyite | 
  R060884 | 
  Na2Cu(CO3)2 | 
  Bob Jenkins  | 
  Santa Rosa mine, Iquique Province, Chile | 
  
           
   | 
   | 
   | Julgoldite-(Fe2+) | 
  R070725 | 
  Ca2Fe2+Fe3+2(Si2O7)(SiO4)(OH)2·H2O | 
  Michael Scott S104176 | 
  Khandivali Quarry (Kandivali Quarry),  Mumbai District (Bombay District),  Maharashtra,  India | 
  
           
   | 
   | 
   | Julgoldite-(Fe3+) | 
  R070261 | 
  Ca2Fe3+Fe3+2(Si2O7)(SiO4)O(OH)·H2O | 
  Michael Scott S104182 | 
  Harstigen Mine, Pajsberg, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Junitoite | 
  R050154 | 
  CaZn2Si2O7·H2O | 
  Jim McGlasson  | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Junitoite | 
  R120100 | 
  CaZn2Si2O7·H2O | 
  Bob Jenkins  | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Juonniite | 
  R070732 | 
  CaMgSc(PO4)2(OH)·4H2O | 
  Michael Scott S105776 | 
  Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Jurbanite | 
  R130817 | 
  Al(SO4)(OH)·5H2O | 
  Rock Currier  | 
  San Manuel mine, San Manuel, San Manuel District, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | K3Fe(CN)5NO | 
  R060933 | 
   | 
  Rock H. Currier Collection 3156 | 
  Synthetic, made in the Czech Republic | 
  
           
   | 
   | 
   | Kaersutite | 
  R070128 | 
  NaCa2(Mg3AlTi4+)(Si6Al2)O22O2 | 
  Michael Scott S100410 | 
  Mt Etna, Etna Volcanic Complex, Catania Province, Sicily,  Italy | 
  
           
   | 
   | 
   | Kaersutite | 
  R141092 | 
  NaCa2(Mg3AlTi4+)(Si6Al2)O22O2 | 
  Ch. and H. Schäfer  | 
  Rothenberg, Bell, Eifel, Germany | 
  
           
   | 
   | 
   | Kainite | 
  R070152 | 
  KMg(SO4)Cl·2.75H2O | 
  James Shigley  | 
  Hansa mine, Hannover, Lower Saxony, Germany | 
  
           
   | 
   | 
   | Kainite | 
  R100021 | 
  KMg(SO4)Cl·2.75H2O | 
  Michael Scott  S105209 | 
  Leopoldshall, Stassfurt, Stassfurt Deposit, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Kainosite-(Y) | 
  R070759 | 
  Ca2Y2(SiO3)4(CO3)·H2O | 
  Michael Scott S104160 | 
  Bicroft mine, Cardiff Township, Haliburton Co., Ontario, Canada | 
  
           
   | 
   | 
   | Kaliborite | 
  R060352 | 
  KHMg2B12O16(OH)10·4H2O | 
  Herb Obodda 008 | 
  Inder Boron deposit, Atyrau (Gur'yev), Atyrau Oblast', Kazakhstan | 
  
           
   | 
   | 
   | Kalicinite | 
  R130026 | 
  KH(CO3) | 
  Dr. Flavia Pinzari  | 
  Lab-grown by bacteria in 15% potassium carbonate | 
  
           
   | 
   | 
   | Kaliophilite | 
  R061113 | 
  KAlSiO4 | 
  Michael Scott S100866 | 
  Bolsena, Lazio, Italy | 
  
           
   | 
   | 
   | Kalsilite | 
  R060030 | 
  KAlSiO4 | 
  University of Arizona Mineral Museum 16160 | 
  San Venanzo, Italy | 
  
           
   | 
   | 
   | Kalsilite | 
  R060801 | 
  KAlSiO4 | 
  Smithsonian Institute 136447 | 
  Marino, Latium, Italy | 
  
           
   | 
   | 
   | Kamaishilite | 
  R070297 | 
  Ca2(SiAl2)O6(OH)2 | 
  Michael Scott S101430 | 
  Kamaishi mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Kamarizaite | 
  R090020 | 
  Fe3+3(AsO4)2(OH)3·3H2O | 
  William W. Pinch  | 
  Kamareza Mines, Laurion, Greece | 
  
           
   | 
   | 
   | Kamchatkite | 
  R070039 | 
  KCu3O(SO4)2Cl | 
  Michael Scott S105068 | 
  Great Tolbachik Eruption (1975-6), Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Kamphaugite-(Y) | 
  R080085 | 
  CaY(CO3)2(OH)·H2O | 
  Peter Cristofono  | 
  Ashland, Massachusetts, USA | 
  
           
   | 
   | 
   | Kanemite | 
  R070544 | 
  NaSi2O4(OH)·3H2O | 
  Michael Scott S100437 | 
  Alluaiv Mountain, Lovozero Massif, Kola Peninsula, Murmanskaya Oblast'; Northern Region, Russia | 
  
           
   | 
   | 
   | Kaňkite | 
  R060783 | 
  Fe3+(AsO4)·3.5H2O | 
  Michael Scott S101158 | 
  Kank by Kutna Hora, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Kanoite | 
  R061134 | 
  MnMgSi2O6 | 
  Michael Scott S102050 | 
  Balmat, St. Lawrence County, New York, USA | 
  
           
   | 
   | 
   | Kaolinite | 
  R140004 | 
  Al2Si2O5(OH)4 | 
  Rock Currier  | 
  Guanajuato, Mexico | 
  
           
   | 
   | 
   | Kaolinite | 
  R160007 | 
  Al2Si2O5(OH)4 | 
  Source Clays Project of The Clay Minerals Society (donated by Eduardo Ferraz)  | 
  32o58' N-82o53' W approximately, topographic map Tabernacle, Georgia. Collected from face of Coss-Hodges pit, October 3,1972. | 
  
           
   | 
   | 
   | Kapellasite | 
  R140623 | 
  Cu3Zn(OH)6Cl2 | 
  Stefan Schorn  | 
  Sounion mine No. 19, Lavrion District, Attikí Prefecture, Greece | 
  
           
   | 
   | 
   | Kapustinite | 
  R060896 | 
  Na6ZrSi6O16(OH)2 | 
  Michael Scott S100956 | 
  Palitra pegmatite, Kedykverpakhk Mountain, Lovozero Massif, Russia | 
  
           
   | 
   | 
   | Karchevskyite | 
  R070103 | 
  Mg18Al9(OH)54Sr2(CO3)9(H2O)6(H3O)5 | 
  Michael Scott S105069 | 
  Zheleznyi mine, Kovdor Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Karibibite | 
  R060307 | 
  Fe3+3(As3+O2)4(As3+2O5)(OH) | 
  Michael Scott S100061 | 
  Urucum, Municipio de Galilea, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Karibibite | 
  R060380 | 
  Fe3+3(As3+O2)4(As3+2O5)(OH) | 
  Michael Scott S100188 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Karnasurtite-(Ce) | 
  R080037 | 
  CeTiAlSi2O7(OH)4·3H2O | 
  Michael Scott S101155 | 
  Karnasurt Mountain, Lovozero, Kola, Russia | 
  
           
   | 
   | 
   | Kasolite | 
  R060479 | 
  Pb(UO2)(SiO4)·H2O | 
  Michael Scott S100307 | 
  Musonoi Extension, Shaba Province, Zaire | 
  
           
   | 
   | 
   | Kasolite | 
  R070155 | 
  Pb(UO2)(SiO4)·H2O | 
  James Shigley  | 
  Katherine District, Northern Territory, Australia | 
  
           
   | 
   | 
   | Katayamalite | 
  R070147 | 
  KLi3Ca7Ti2(SiO3)12(OH)2 | 
  Michael Scott S105814 | 
  Dara-i-Pioz, Hait, Alayskiy (Alay; Alai) Range, South Tien-Shan Mts., Tajikistan | 
  
           
   | 
   | 
   | Katayamalite | 
  R120164 | 
  KLi3Ca7Ti2(SiO3)12(OH)2 | 
  Donald Doell  | 
  Iwagi Island, Inland Sea, Ehime Prefecture, Japan | 
  
           
   | 
   | 
   | Katoite | 
  R070646 | 
  Ca3Al2(OH)12 | 
  Marcus Origlieri  | 
  Synthetic | 
  
           
   | 
   | 
   | Katoite | 
  R080034 | 
  Ca3Al2(OH)12 | 
  Royal Ontario Museum M11320 | 
  Wilui River, Russia | 
  
           
   | 
   | 
   | Katoptrite | 
  R140009 | 
  Mn2+13Al4Sb5+2O20(SiO4)2 | 
  Rock Currier  | 
  Brattfors mine, Nordmark, Filipstad, Värmland, Sweden | 
  
           
   | 
   | 
   | Kazanskyite | 
  R130020 | 
  Ba◻TiNbNa3Ti(Si2O7)2O2(OH)2(H2O)2 | 
  Fernando Camara  | 
  Kirovskii mine, Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Kegelite | 
  R080021 | 
  Pb4Al2Si4O10(SO4)(CO3)2(OH)4 | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Keilite | 
  R070104 | 
  FeS | 
  Michael Scott S105070 | 
  Abee meteorite, Alberta, Canada | 
  
           
   | 
   | 
   | Keiviite-(Yb) | 
  R060522 | 
  Yb2Si2O7 | 
  Michael Scott S100282 | 
  Mount Ploskaja, west Keivy, Kola, Russia | 
  
           
   | 
   | 
   | Kellyite | 
  R060903 | 
  (Mn2+,Mg,Al)3(Si,Al)2O5(OH)4 | 
  Michael Scott S100995 | 
  Near Bald Knob, Alleghany County, North Carolina, USA | 
  
           
   | 
   | 
   | Kemmlitzite | 
  R070663 | 
  SrAl3(AsO4)(SO4)(OH)6 | 
  Michael Scott S102336 | 
  Falotta, Tinizong (Tinzen), Sursass (Oberhalbstein), Grischun (Grisons; Graubünden), Switzerland | 
  
           
   | 
   | 
   | Kempite | 
  R070679 | 
  Mn2+2Cl(OH)3 | 
  Michael Scott S106035 | 
  Oktyabr'sky mine, Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Kenoargentotetrahedrite-(Fe) | 
  R061081 | 
  Ag6(Cu4Fe2)Sb4S12◻ | 
  Lloyd Twaites LT 863 | 
  Sadie mine, Elsa, Yukon, Canada | 
  
           
   | 
   | 
   | Kenoplumbomicrolite | 
  R130729 | 
  (Pb,◻)2Ta2O6[◻,(OH),O] | 
  Donald Doell  | 
  Ploskaya Mountains, Keivy Massif, Kola, Russian Federation | 
  
           
   | 
   | 
   | Kentbrooksite | 
  R110208 | 
  (Na,REE)15(Ca,REE)6Mn3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2 | 
  Gunnar Farber  | 
  Pocos de Caldas plateau, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Kentrolite | 
  R060245 | 
  Pb2Mn3+2O2(Si2O7) | 
  William W. Pinch  | 
  Percha Creek area, Hillsboro District, Sierra County, New Mexico, USA | 
  
           
   | 
   | 
   | Kermesite | 
  R060742 | 
  Sb2OS2 | 
  Michael Scott S101199 | 
  Pezinok, Czechoslovakia | 
  
           
   | 
   | 
   | Kernite | 
  R050661 | 
  Na2B4O6(OH)2·3H2O | 
  Marcus Origlieri  | 
  Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Kësterite | 
  R120098 | 
  Cu2ZnSnS4 | 
  Marcus Origlieri  | 
  Xuebaoding, Sichuan Province, China | 
  
           
   | 
   | 
   | Kettnerite | 
  R130113 | 
  CaBiO(CO3)F | 
  Mark Ascher  | 
  Flying Saucer Group, Maricopa County, Arizona | 
  
           
   | 
   | 
   | Keyite | 
  R050585 | 
  (◻0.5Cu0.5)CuCdZn2(AsO4)3·H2O | 
  University of Arizona Mineral Museum 14754 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Keyite | 
  R090039 | 
  (◻0.5Cu0.5)CuCdZn2(AsO4)3·H2O | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Keystoneite | 
  R070660 | 
  Mg0.5NiFe3+(Te4+O3)3·4H2O | 
  Michael Scott S105215 | 
  McAlpine mine, Moccasin, Tuolumne County, California, USA | 
  
           
   | 
   | 
   | Keystoneite | 
  R070661 | 
  Mg0.5NiFe3+(Te4+O3)3·4H2O | 
  Michael Scott S106029 | 
  McAlpine mine, Moccasin, Tuolumne County, California, USA | 
  
           
   | 
   | 
   | Khaidarkanite | 
  R060322 | 
  Cu4Al3(OH)14F3·2H2O | 
  Michael Scott S100280 | 
  Khaidarkan, (Kirgizia) Kyrgyzstan | 
  
           
   | 
   | 
   | Khanneshite | 
  R070672 | 
  (Na,Ca)3(Ba,Sr,Ce,Ca)3(CO3)5 | 
  Michael Scott S102128 | 
  Tuliylukht Bay, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Khinite | 
  R080124 | 
  Cu2+3PbTe6+O6(OH)2 | 
  William W. Pinch  | 
  400 ft. level, Empire mine, Tombstone, Arizona | 
  
           
   | 
   | 
   | Kidwellite | 
  R060324 | 
  NaFe3+9+x(PO4)6(OH)11·3H2O (x ≈ 0.33) | 
  Michael Scott S100182 | 
  York mine, Polk County, Arkansas, USA | 
  
           
   | 
   | 
   | Kidwellite | 
  R070106 | 
  NaFe3+9+x(PO4)6(OH)11·3H2O (x ≈ 0.33) | 
  Bob Jenkins  | 
  Teskov, Czech Republic | 
  
           
   | 
   | 
   | Kimuraite-(Y) | 
  R050586 | 
  CaY2(CO3)4·6H2O | 
  Marcus Origlieri  | 
  Mitsukoshi, Hizen town, Higashimatsuura County, Saga Prefecture, Japan | 
  
           
   | 
   | 
   | Kimzeyite | 
  R060148 | 
  Ca3Zr2(SiAl2)O12 | 
  University of Arizona Mineral Museum  | 
  Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Kingite | 
  R060997 | 
  Al3(PO4)2F2(OH)·7H2O | 
  Bob Jenkins  | 
  Clinton, South Australia | 
  
           
   | 
   | 
   | Kingsmountite | 
  R220015 | 
  Ca3MnFe2+Al4(PO4)6(OH)4·12H2O | 
  Herwig Pelckmans  | 
  Silbergrube, Waidhaus, Bavaria, Germany | 
  
           
   | 
   | 
   | Kinoite | 
  R040155 | 
  Ca2Cu2Si3O10·2H2O | 
  University of Arizona Mineral Museum 10333 | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Kinoite | 
  R050168 | 
  Ca2Cu2Si3O10·2H2O | 
  Marcus Origlieri  | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Kinoshitalite | 
  R070656 | 
  BaMg3(Si2Al2O10)(OH)2 | 
  Michael Scott S102325 | 
  Hokkejino, Kyoto Prefecture, Kinki Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Kipushite | 
  R060826 | 
  Cu6(PO4)2(OH)6·H2O | 
  Michael Scott S101188 | 
  Shaba Provence, Zaire | 
  
           
   | 
   | 
   | Kirschsteinite | 
  R070266 | 
  CaFe2+(SiO4) | 
  Michael Scott S105226 | 
  Dolores mine, Pastrana, Mazarrón, Murcia, Spain | 
  
           
   | 
   | 
   | Klebelsbergite | 
  R060157 | 
  Sb3+4O4(SO4)(OH)2 | 
  Marcus Origlieri  | 
  Pereta mine, near Grosseto, Tuscany, Italy | 
  
           
   | 
   | 
   | Kleinite | 
  R060329 | 
  (Hg2N)(Cl,SO4)·nH2O | 
  Michael Scott S100169 | 
  McDermott mine, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Kleinite | 
  R150103 | 
  (Hg2N)(Cl,SO4)·nH2O | 
  William W. Pinch  | 
  Terlingua, Brewster Co., Texas, USA | 
  
           
   | 
   | 
   | Klockmannite | 
  R070658 | 
  Cu5.2Se6 | 
  Michael Scott S105180 | 
  Cacheuta mine, Cerro de Cacheuta, Sierra de Cacheuta, Mendoza, Argentina | 
  
           
   | 
   | 
   | Klyuchevskite | 
  R070659 | 
  K3Cu3Fe3+O2(SO4)4 | 
  Michael Scott S105208 | 
  Yadevitaya fumarole, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Kobellite | 
  R070669 | 
  Pb11(Cu,Fe)2(Bi,Sb)15S35 | 
  Michael Scott S105219 | 
  Jedlovec (Fichtenhubel) deposit, Smolník ore belt, Slovenske Rudohorie Mts, Koický Kraj, Slovak Republic | 
  
           
   | 
   | 
   | Kobellite | 
  R110092 | 
  Pb11(Cu,Fe)2(Bi,Sb)15S35 | 
  Mark Feinglos  | 
  Crabtree quarry, Wake County, North Carolina, USA | 
  
           
   | 
   | 
   | Kobyashevite | 
  R160001 | 
  Cu5(SO4)2(OH)6·4H2O | 
  Eugene Schlepp  | 
  Ojuela mine (Cumbres lugar), Mapimí, Durango, Mexico | 
  
           
   | 
   | 
   | Koenenite | 
  R060989 | 
  Na4Mg9Al4Cl12(OH)22 | 
  Michael Scott S101315 | 
  Grauer Salzton, Bergmannssegen Quarry, Lehrte, near Hannover, Germany | 
  
           
   | 
   | 
   | Kolarite | 
  R070677 | 
  PbTeCl2 | 
  Michael Scott S106032 | 
  Oktyabr'sky Mine, Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Kolbeckite | 
  R060981 | 
  Sc(PO4)·2H2O | 
  Bob Jenkins  | 
  Hot Springs County, Arkansas, USA | 
  
           
   | 
   | 
   | Kolbeckite | 
  R061040 | 
  Sc(PO4)·2H2O | 
  Mark Mauthner  | 
  Christy Pit, Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Komarovite | 
  R070054 | 
  (Ca,Sr,Na)6-x(Nb,Ti)6(Si4O12)(O,OH,F)16·nH2O | 
  Michael Scott S105071 | 
  Kukisvumchorr Mountain, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Kombatite | 
  R070720 | 
  Pb14O9(VO4)2Cl4 | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Koritnigite | 
  R060654 | 
  Zn(AsO3OH)·H2O | 
  Michael Scott S101163 | 
  Jachymov, Czech Republic | 
  
           
   | 
   | 
   | Kornerupine | 
  R050214 | 
  (Mg,Fe2+,Al,◻)10(Si,Al,B)5O21(OH,F)2 | 
  Jibamitra Ganguly  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Kornerupine | 
  R100155 | 
  (Mg,Fe2+,Al,◻)10(Si,Al,B)5O21(OH,F)2 | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Korobitsynite | 
  R110192 | 
  (Na,◻)4Ti2(Si4O12)(O,OH)2·4H2O | 
  Donald Doell  | 
  Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Kosmochlor | 
  R120015 | 
  NaCr3+Si2O6 | 
  George Harlow  | 
  Synthetic | 
  
           
   | 
   | 
   | Kosnarite | 
  R060250 | 
  KZr2(PO4)3 | 
  William W. Pinch  | 
  Jenipapo District, Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Kostovite | 
  R070282 | 
  AuCuTe4 | 
  Michael Scott S100607 | 
  Chelopech mine, Chelopech Obshchina, Balkan Mts, Sofiya Oblast, Bulgaria | 
  
           
   | 
   | 
   | Kotoite | 
  R060940 | 
  Mg3(BO3)2 | 
  Michael Scott S101243 | 
  Hol Kol mine, Samdung, near Pyongyang, Suan County, North Korea | 
  
           
   | 
   | 
   | Köttigite | 
  R110032 | 
  Zn3(AsO4)2·8H2O | 
  William W Pinch  | 
  44 level, Tsumeb mine, Tsumeb, Namibia | 
  
           
   | 
   | 
   | Köttigite | 
  R110035 | 
  Zn3(AsO4)2·8H2O | 
  The University of Arizona Mineral Museum 18728 | 
  Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Kovdorskite | 
  R050505 | 
  Mg2(PO4)(OH)·3H2O | 
  Bob Downs  | 
  Kovdor Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Kovdorskite | 
  R060579 | 
  Mg2(PO4)(OH)·3H2O | 
  Michael Scott S100808 | 
  Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Kozoite-(La) | 
  R060995 | 
  La(CO3)(OH) | 
  Marcus Origlieri  | 
  Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan | 
  
           
   | 
   | 
   | Kozoite-(Nd) | 
  R060996 | 
  Nd(CO3)(OH) | 
  Marcus Origlieri  | 
  Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan | 
  
           
   | 
   | 
   | Kraisslite | 
  R060328 | 
  Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16 | 
  Michael Scott S100194 | 
  Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Krásnoite | 
  R120056 | 
  Ca3Al7.7Si3P4O22.9(OH)13.3F2·8H2O | 
  Bob Jenkins  | 
  Horní Slavkov, Czech Republic | 
  
           
   | 
   | 
   | Krasnovite | 
  R080115 | 
  Ba(Al,Mg)(PO4,CO3)(OH)2·H2O | 
  William W. Pinch  | 
  Cerro Sapo Carbonatite dyke, Cochabamba, Bolivia | 
  
           
   | 
   | 
   | Krausite | 
  R110211 | 
  KFe3+(SO4)2·H2O | 
  Gunnar Farber  | 
  Mina Alcaparrosa, Cerritos Bayos, Calama, Atacama, II Region, Chile | 
  
           
   | 
   | 
   | Krauskopfite | 
  R070657 | 
  BaSi2O5·3H2O | 
  Michael Scott S105171 | 
  Rush Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Krautite | 
  R060967 | 
  Mn(AsO3OH)·H2O | 
  Michael Scott S100387 | 
  Jachymov, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Krennerite | 
  R060138 | 
  Au3AgTe8 | 
  University of Arizona Mineral Museum 13274 | 
  Strong mine, Cripple Creek, Teller County, Colorado, USA | 
  
           
   | 
   | 
   | Krinovite | 
  R140079 | 
  Na4[Mg8Cr3+4]O4[Si12O36] | 
  Rock Currier  | 
  Wichita County Meteorite, Wichita County, Texas, USA | 
  
           
   | 
   | 
   | Kristiansenite | 
  R090022 | 
  Ca4Sc2Sn2(Si2O7)2(Si2O6OH)2 | 
  William W. Pinch  | 
  Heftetjern, Tørdal, Telemark, Norway | 
  
           
   | 
   | 
   | Kröhnkite | 
  R050604 | 
  Na2Cu(SO4)2·2H2O | 
  University of Arizona Mineral Museum  | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Kröhnkite | 
  R060111 | 
  Na2Cu(SO4)2·2H2O | 
  University of Arizona Mineral Museum 275 | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Krupkaite | 
  R061038 | 
  PbCuBi3S6 | 
  Michael Scott S101153 | 
  Vysna Boca, Slovakia | 
  
           
   | 
   | 
   | Krupkaite | 
  R070310 | 
  PbCuBi3S6 | 
  James Shigley  | 
  MaGruder Peak Quadrangle, near Goldfield, Esmerelda County, Nevada, USA | 
  
           
   | 
   | 
   | Krupkaite | 
  R100098 | 
  PbCuBi3S6 | 
  Peter Megaw  | 
  Julcani District, Peru | 
  
           
   | 
   | 
   | Krut'aite | 
  R060381 | 
  CuSe2 | 
  Michael Scott S100093 | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Kryzhanovskite | 
  R130050 | 
  (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 | 
  Don Doell  | 
  Bull Moose mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Kryzhanovskite | 
  R130691 | 
  (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 | 
  Rob Lavinsky  | 
  Rapid Creek, Dawson Mining District, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Kryzhanovskite | 
  R140111 | 
  (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 | 
  Rock Currier  | 
  Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Ktenasite | 
  R070081 | 
  ZnCu4(SO4)2(OH)6·6H2O | 
  Bob Jenkins  | 
  Amot, Modum, Norway | 
  
           
   | 
   | 
   | Ktenasite | 
  R090002 | 
  ZnCu4(SO4)2(OH)6·6H2O | 
  Michael Scott S100183 | 
  Oh mine, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Kukharenkoite-(Ce) | 
  R110190 | 
  Ba2Ce(CO3)3F | 
  Donald Doell  | 
  Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Kuksite | 
  R110039 | 
  Pb3Zn3TeO6(PO4)2 | 
  Brent Thorne  | 
  Blue Bell claims, Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Kulanite | 
  R060240 | 
  BaFe2+2Al2(PO4)3(OH)3 | 
  Rock Currier  | 
  Big Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Kunatite | 
  R120055 | 
  CuFe3+2(PO4)2(OH)2·4H2O | 
  William W Pinch  | 
  Krasno, Horni Slakov, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Kupletskite | 
  R110176 | 
  K2NaMn2+7Ti2(Si4O12)2O2(OH)4F | 
  Donald Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Kupletskite-(Cs) | 
  R060929 | 
  Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4F | 
  Michael Scott S100984 | 
  Dara-i-Pioz, Garm region, Tajikistan | 
  
           
   | 
   | 
   | Kurchatovite | 
  R130074 | 
  CaMgB2O5 | 
  Igor Pekov  | 
  Solongo B deposit, Vitim Plateau, Buriatia Republic, Transbaikalia, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Kurnakovite | 
  R050105 | 
  MgB3O3(OH)5·5H2O | 
  Rock Currier  | 
  Kramer deposit, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Kurnakovite | 
  R050393 | 
  MgB3O3(OH)5·5H2O | 
  Marcus Origlieri  | 
  Kramer deposit, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Kusachiite | 
  R220013 | 
  Cu2+Bi3+2O4 | 
  Joan Rosell Riba  | 
  Fuka mine, Takahashi City, Okayama Prefecture, Japan | 
  
           
   | 
   | 
   | Kushiroite | 
  R110134 | 
  CaAlAlSiO6 | 
  Roberta Fleming RM010K/RM010H | 
  Synthetic, at 1400 C, 20 kb, 24 hours, and 164 hours | 
  
           
   | 
   | 
   | Kutnohorite | 
  R060473 | 
  CaMn2+(CO3)2 | 
  Michael Scott S100370 | 
  N'Chwaning II mine, Kalahari manganese field, northern Cape Province, Republic of South Africa | 
  
           
   | 
   | 
   | Kuzmenkoite-Mn | 
  R070662 | 
  K2MnTi4(Si4O12)2(OH)4·5-6H2O | 
  Michael Scott S105784 | 
  Selsurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Kyanite | 
  R040119 | 
  Al2OSiO4 | 
  University of Arizona Mineral Museum 13215 | 
  Rutherford County, North Carolina, USA | 
  
           
   | 
   | 
   | Kyanite | 
  R050450 | 
  Al2OSiO4 | 
  Marcus Origlieri  | 
  Switzerland | 
  
           
   | 
   | 
   | Kyanite | 
  R100139 | 
  Al2OSiO4 | 
  William W. Pinch  | 
  Madagascar | 
  
           
   | 
   | 
   | Kyanite | 
  R100159 | 
  Al2OSiO4 | 
  William W. Pinch  | 
  Tanzania | 
  
           
   | 
   | 
   | Laachite | 
  R141091 | 
  (Ca,Mn)2Zr2Nb2TiFeO14 | 
  Ch. and H. Schäfer  | 
  In den Dellen, Laach lake volcano, Mendig, Eifel, Germany | 
  
           
   | 
   | 
   | Labradorite | 
  X050108 | 
  (Ca,Na)(Si,Al)4O8 | 
  G.R. Rossman 25 | 
  Pinacate Mountains, Sonora, Mexico | 
  
           
   | 
   | 
   | Labradorite | 
  X050110 | 
  (Ca,Na)(Si,Al)4O8 | 
  G.R. Rossman 1613 | 
  Sunstone Collecting area, Rabbit Hills, Oregon, USA | 
  
           
   | 
   | 
   | Labradorite | 
  X050111 | 
  (Ca,Na)(Si,Al)4O8 | 
  G.R. Rossman 289 | 
  Clear Lake, Lake View, Oregon, USA | 
  
           
   | 
   | 
   | Labradorite | 
  X050189 | 
  (Ca,Na)(Si,Al)4O8 | 
  G.R. Rossman 607 | 
  Rabbit Hills, Lake County, Oregon, USA | 
  
           
   | 
   | 
   | Labuntsovite-Mg | 
  R130550 | 
  Na4K4Mg2Ti8O4(Si4O12)4(OH)4·10-12H2O | 
  Don Doell  | 
  Kovdor Zheleznyi mine, Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Labuntsovite-Mn | 
  R110169 | 
  Na4K4Mn2+2Ti8O4(Si4O12)4(OH)4·10-12H2O | 
  Donald V Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Laihunite | 
  R110051 | 
  (Fe3+,Fe2+,◻)2(SiO4) | 
  Pingqu Fu  | 
  Laihe Fe deposit, Qianshan District, Anshan Prefecture, Liaoning Province, China | 
  
           
   | 
   | 
   | Lammerite | 
  R060715 | 
  Cu3(AsO4)2 | 
  Bob Jenkins  | 
  Guanaco, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Lammerite | 
  R140108 | 
  Cu3(AsO4)2 | 
  Rock Currier  | 
  Veta Negra, Laurani District, Aroma Province, La Paz Department, Bolivia | 
  
           
   | 
   | 
   | Lamprophyllite | 
  R070200 | 
  (SrNa)Ti2Na3Ti(Si2O7)2O2(OH)2 | 
  James Shigley  | 
  Windy Boy Peak, Bearpaw Mountains, Hill County, Montana, USA | 
  
           
   | 
   | 
   | Lamprophyllite | 
  R070284 | 
  (SrNa)Ti2Na3Ti(Si2O7)2O2(OH)2 | 
  Michael Scott S105823 | 
  Lovozero Massif,  Kola Peninsula,  Murmanskaja Oblast',  Northern Region,  Russia | 
  
           
   | 
   | 
   | Lamprophyllite | 
  R130420 | 
  (SrNa)Ti2Na3Ti(Si2O7)2O2(OH)2 | 
  Gunnar Farber  | 
  Pocos de Caldas Plateau, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Lanarkite | 
  R080116 | 
  Pb2O(SO4) | 
  William W. Pinch  | 
  Leadhills, Lanarkshire,  Scotland | 
  
           
   | 
   | 
   | Långbanite | 
  R050664 | 
  Mn2+4Mn3+9Sb5+O16(SiO4)2 | 
  University of Arizona Mineral Museum 2232 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Långbanite | 
  R100037 | 
  Mn2+4Mn3+9Sb5+O16(SiO4)2 | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Langbeinite | 
  R070285 | 
  K2Mg2(SO4)3 | 
  Michael Scott S105519 | 
  Carlsbad, New Mexico, USA | 
  
           
   | 
   | 
   | Langhofite | 
  R220023 | 
  Pb2(OH)[WO4(OH)] | 
  Stefan and Markus Wiklund 21012 | 
  Langban mine, Varmland, Sweden | 
  
           
   | 
   | 
   | Langite | 
  R060090 | 
  Cu4(SO4)(OH)6·2H2O | 
  University of Arizona Mineral Museum 12559 | 
  Allihies mine, County Cork, Ireland | 
  
           
   | 
   | 
   | Langite | 
  R070316 | 
  Cu4(SO4)(OH)6·2H2O | 
  James Shigley  | 
  Drakewalls mine, Gunnislake, Callington District, Cornwall, England | 
  
           
   | 
   | 
   | Langite | 
  R120042 | 
  Cu4(SO4)(OH)6·2H2O | 
  Donald Doell  | 
  Dunbrack mine, Musquodoboit Harbour, Halifax County, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Lannonite | 
  R090036 | 
  HCa4Mg2Al4(SO4)8F9·32H2O | 
  Bob Jenkins  | 
  Lone Pine mine, Catron County, New Mexico, USA | 
  
           
   | 
   | 
   | Lanthanite-(Ce) | 
  R230004 | 
  Ce2(CO3)3·8H2O | 
  Neil Hubbard  | 
  Tynebottom Mine, Cumbria, United Kingdom | 
  
           
   | 
   | 
   | Lanthanite-(Nd) | 
  R060467 | 
  Nd2(CO3)3·8H2O | 
  Michael Scott S100071 | 
  Curitiba, Parana, Brazil | 
  
           
   | 
   | 
   | Lanthanite-(Nd) | 
  R060470 | 
  Nd2(CO3)3·8H2O | 
  Michael Scott S100080 | 
  Santa Isabel, Sao Paulo State, Brazil | 
  
           
   | 
   | 
   | Lanthanite-(Nd) | 
  R060993 | 
  Nd2(CO3)3·8H2O | 
  Marcus Origlieri  | 
  Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan | 
  
           
   | 
   | 
   | Larderellite | 
  R130392 | 
  (NH4)B5O7(OH)2·H2O | 
  Bob Jenkins (capsule), Rock Currier (rock piece)  | 
  Larderello Lagoon, Tuscany, Italy | 
  
           
   | 
   | 
   | Larisaite | 
  R060879 | 
  Na(H3O)(UO2)3(Se4+O3)2O2·4H2O | 
  Michael Scott S100961 | 
  Repete mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Larnite | 
  R070530 | 
  Ca2(SiO4) | 
  Michael Scott S100407 | 
  Larne, County Antrim, Northern Ireland, UK | 
  
           
   | 
   | 
   | Lasalite | 
  R070476 | 
  Na2Mg2V10O28·20H2O | 
  Dakota Matrix Minerals  | 
  Vanadium Queen mine, Paradox Valley, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Laueite | 
  R060013 | 
  Mn2+Fe3+2(PO4)2(OH)2·8H2O | 
  University of Arizona Mineral Museum 16075 | 
  Hagendorf, Germany | 
  
           
   | 
   | 
   | Laumontite | 
  R040020 | 
  CaAl2Si4O12·4H2O | 
  University of Arizona Mineral Museum 10031 | 
  Pine Creek Tungsten mine, Bishop, Inyo County, California, USA | 
  
           
   | 
   | 
   | Laumontite | 
  R060114 | 
  CaAl2Si4O12·4H2O | 
  University of Arizona Mineral Museum 9882 | 
  Pine Creek, Tungsten mine, Bishop, California, USA | 
  
           
   | 
   | 
   | Laurelite | 
  R100011 | 
  Pb7F12Cl2 | 
  William W. Pinch  | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Laurelite | 
  R100035 | 
  Pb7F12Cl2 | 
  Natural History Museum of Los Angeles County  LACMNH 33608 | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Laurionite | 
  R130788 | 
  PbCl(OH) | 
  Bob Jenkins  | 
  Pacha Limani, Laurion, Greece | 
  
           
   | 
   | 
   | Laurionite | 
  R140025 | 
  PbCl(OH) | 
  Rock Currier  | 
  Lavrion District, Attikí Prefecture, Greece | 
  
           
   | 
   | 
   | Laurite | 
  R060309 | 
  RuS2 | 
  Michael Scott S100242 | 
  Verkhneivinsk, Ural Mountains, Russia | 
  
           
   | 
   | 
   | Laurite | 
  R110120 | 
  RuS2 | 
  Mark N Feinglos  | 
  Tambiano River, Riampinang, Kalimantan Selatan Province, Borneo Island, Indonesia | 
  
           
   | 
   | 
   | Lausenite | 
  X070004 | 
  Fe3+2(SO4)3·5H2O | 
  University of Arizona Mineral Museum 53 | 
  United Verde Mine, Gerome, Arizona, USA | 
  
           
   | 
   | 
   | Lavendulan | 
  X060011 | 
  NaCaCu5(AsO4)4Cl·5H2O | 
  University of Arizona Mineral Museum 13508 | 
  Talmessi Mine, Anarak, Iran | 
  
           
   | 
   | 
   | Lavendulan | 
  R060716 | 
  NaCaCu5(AsO4)4Cl·5H2O | 
  Bob Jenkins  | 
  Guanaco, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Lavendulan | 
  R141212 | 
  NaCaCu5(AsO4)4Cl·5H2O | 
  James Shigley  | 
  Alice May mine, Ravensthorpe, Western Australia, Australia | 
  
           
   | 
   | 
   | Låvenite | 
  R120044 | 
  (Na,Ca)4(Mn2+,Fe2+)2(Zr,Ti,Nb)2(Si2O7)2(O,F)4 | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Laverovite | 
  R060216 | 
  K2NaMn7Zr2(Si4O12)2O2(OH)4F | 
  Royal Ontario Museum M26526 | 
  Desourdy Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Laverovite | 
  R190014 | 
  K2NaMn7Zr2(Si4O12)2O2(OH)4F | 
  Royal Ontario Museum M26526  | 
  Desourdy Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Lavinskyite | 
  R120057 | 
  K(LiCu)Cu6(Si4O11)2(OH)4 | 
  William W. Pinch, Robert Lavinsky, and Marcus Origlieri  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Lavinskyite | 
  R141115 | 
  K(LiCu)Cu6(Si4O11)2(OH)4 | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, South Africa | 
  
           
   | 
   | 
   | Lawsonite | 
  R050042 | 
  CaAl2(Si2O7)(OH)2·H2O | 
  University of Arizona Mineral Museum 8433 | 
  California, USA | 
  
           
   | 
   | 
   | Lawsonite | 
  X050112 | 
  CaAl2(Si2O7)(OH)2·H2O | 
  G.R. Rossman 1135 | 
  Marin County, California, USA | 
  
           
   | 
   | 
   | Lazaraskeite | 
  R180026 | 
  Cu(C2H3O3)2 | 
  Warren Lazar  | 
  Western end of Pusch Ridge in the Santa Catalina Mountains, north of Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Lazaraskeite | 
  R190015 | 
  Cu(C2H3O3)2 | 
  Warren Lazar  | 
  Western end of Pusch Ridge in the Santa Catalina Mountains, north of Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Lazulite | 
  R050110 | 
  MgAl2(PO4)2(OH)2 | 
  Rock Currier  | 
  Rapid Creek, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Lazulite | 
  R050269 | 
  MgAl2(PO4)2(OH)2 | 
  Marcus Origlieri  | 
  Horsjoberg, Varmland, Sweden | 
  
           
   | 
   | 
   | Lazulite | 
  R060494 | 
  MgAl2(PO4)2(OH)2 | 
  Michael Scott S100117 | 
  Champion mine, White Mountains, Mono County, California, USA | 
  
           
   | 
   | 
   | Lead | 
  R070280 | 
  Pb | 
  Michael Scott S100997 | 
  Laurion, Greece | 
  
           
   | 
   | 
   | Lead | 
  R070193 | 
  Pb | 
  James Shigley  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Leadhillite | 
  R050642 | 
  Pb4(SO4)(CO3)2(OH)2 | 
  University of Arizona Mineral Museum 11090 | 
  Mammoth mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Leadhillite | 
  R060047 | 
  Pb4(SO4)(CO3)2(OH)2 | 
  University of Arizona Mineral Museum 16155 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Lecoqite-(Y) | 
  R141187 | 
  Na3Y(CO3)3·6H2O | 
  Amor Ben Ali  | 
  Synthetic | 
  
           
   | 
   | 
   | Leesite | 
  R220018 | 
  K(H2O)2[(UO2)4O2(OH)5]·3H2O | 
  Jim McGlasson  | 
  Jomac mine, White Canyon Mining District, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Lefontite | 
  R140074 | 
  Fe2Al2Be(PO4)2(OH)6 | 
  Bob Jenkins  | 
  Galiléia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Lefontite | 
  R140428 | 
  Fe2Al2Be(PO4)2(OH)6 | 
  Michael Scott  | 
  João Teodoro mine, Linópolis district, Divino das Laranjeiras, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Lefontite | 
  R140539 | 
  Fe2Al2Be(PO4)2(OH)6 | 
  Benjamin N. Schumer  | 
  Palermo No. 1 mine, Groton, New Hampshire, USA | 
  
           
   | 
   | 
   | Legrandite | 
  R040151 | 
  Zn2(AsO4)(OH)·H2O | 
  University of Arizona Mineral Museum 4191 | 
  Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Leifite | 
  R060219 | 
  Na7Be2(Si15Al3)O39(F,OH)2 | 
  Royal Ontario Museum M49476 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Leightonite | 
  R050211 | 
  K2Ca2Cu(SO4)4·2H2O | 
  John Dagenais  | 
  Chuquicamata mine, Calama, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Leiteite | 
  R040011 | 
  ZnAs3+2O4 | 
  Dave Bunk Minerals  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Lemanskiite | 
  R200011 | 
  NaCaCu5(AsO4)4Cl·3H2O | 
  Bob Jenkins  | 
  El Guanaco mine, Guanaco, Santa Catalina, Antofagasta Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Lemmleinite-Ba | 
  R070650 | 
  Na4K4Ba2+xTi8(Si4O12)4(OH,O)8·8H2O | 
  Michael Scott  S100152  | 
  Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA | 
  
           
   | 
   | 
   | Lemmleinite-Ba | 
  R110017 | 
  Na4K4Ba2+xTi8(Si4O12)4(OH,O)8·8H2O | 
  Ray Grant  | 
  Partomchorr Mt., Khibiny Massif, Kola, Russia | 
  
           
   | 
   | 
   | Lemoynite | 
  R080106 | 
  Na2CaZr2Si10O26·5-6H2O | 
  William W. Pinch  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Leningradite | 
  R070053 | 
  PbCu3(VO4)2Cl2 | 
  Michael Scott S105074 | 
  main fracture, N breakthrough, Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Lenoblite | 
  R060761 | 
  V4+2O4·2H2O | 
  Michael Scott S101251 | 
  Clara mine, Schwarzwald, Germany | 
  
           
   | 
   | 
   | Lepidocrocite | 
  R050454 | 
  Fe3+O(OH) | 
  University of Arizona Mineral Museum 16088 | 
  Malvern, Chester County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Lepidolite | 
  X050113 | 
  K(Li,Al)3(Si,Al)4O10(F,OH)2 | 
  Caltech  | 
  Stewart mine, Pala, California, USA | 
  
           
   | 
   | 
   | Lepidolite | 
  X050114 | 
  K(Li,Al)3(Si,Al)4O10(F,OH)2 | 
  Caltech  | 
  Coolgardie, Western Australia, Australia | 
  
           
   | 
   | 
   | Leucite | 
  R040107 | 
  K(AlSi2O6) | 
  University of Arizona Mineral Museum 4733 | 
  Roccamonfina, Italy | 
  
           
   | 
   | 
   | Leucite | 
  R060300 | 
  K(AlSi2O6) | 
  Herb Obodda 029 | 
  Alban Hills, Rome Province, Latium, Italy | 
  
           
   | 
   | 
   | Leucophanite | 
  R050004 | 
  NaCaBeSi2O6F | 
  University of Arizona Mineral Museum 2925 | 
  Langesundfjord, Norway | 
  
           
   | 
   | 
   | Leucophanite | 
  R060199 | 
  NaCaBeSi2O6F | 
  Royal Ontario Museum M31735 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Leucophanite | 
  R060207 | 
  NaCaBeSi2O6F | 
  Royal Ontario Museum M49430 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Leucophoenicite | 
  R060308 | 
  Mn2+7(SiO4)3(OH)2 | 
  Michael Scott S100253 | 
  Parker Shaft, Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Leucophoenicite | 
  R150131 | 
  Mn2+7(SiO4)3(OH)2 | 
  Steven Kuitems  | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Leucophosphite | 
  R060338 | 
  KFe3+2(PO4)2(OH)·2H2O | 
  Michael Scott S100184 | 
  Gunheath pit, St. Austell, Cornwall, England | 
  
           
   | 
   | 
   | Leucophosphite | 
  R080126 | 
  KFe3+2(PO4)2(OH)·2H2O | 
  Thomas A. Loomis TL-41 | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Leucosphenite | 
  R060201 | 
  Na4BaTi2B2Si10O30 | 
  Royal Ontario Museum M41878 | 
  Poudrette Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Lévyne-Ca | 
  R070270 | 
  Ca3(Si12Al6)O36·18H2O | 
  Michael Scott S100922 | 
  Beech Creek Quarry, Mount Vernon, Grant County, Oregon, USA | 
  
           
   | 
   | 
   | Lévyne-Ca | 
  R080128 | 
  Ca3(Si12Al6)O36·18H2O | 
  Michael Scott S100946 | 
  Dallas, Oregon, USA | 
  
           
   | 
   | 
   | Lévyne-Na | 
  R060021 | 
  Na6(Si12Al6)O36·18H2O | 
  Bob Downs  | 
  Dallas, Oregon, USA | 
  
           
   | 
   | 
   | Lianbinite | 
  R220025 | 
  (NH4)(C2H3O3)(C2H4O3) | 
  Warren Lazar  | 
  Western end of Pusch Ridge in the Santa Catalina Mountains, north of Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Liangjunite | 
  R220001 | 
  K2(Mo2O5)(SO4)2·3H2O | 
  Michael Scott S102692 | 
  Freedom No. 2 mine, Marysvale District (Marysvale Uranium area), Piute County, Utah, USA | 
  
           
   | 
   | 
   | Libethenite | 
  R050147 | 
  Cu2(PO4)(OH) | 
  Jim McGlasson  | 
  Los Azules mine, Copiapo, Chile | 
  
           
   | 
   | 
   | Libethenite | 
  R050613 | 
  Cu2(PO4)(OH) | 
  University of Arizona Mineral Museum 2420 | 
  Libethen, Banskobystricky, Slovakia | 
  
           
   | 
   | 
   | Libyan Desert glass | 
  R060357 | 
   | 
  Herb Obodda 017 | 
  Libyan Desert, Sahara Desert, Egypt | 
  
           
   | 
   | 
   | Liebenbergite | 
  R120062 | 
  Ni2(SiO4) | 
  Ken Domanik  | 
  Synthetic, by flux method | 
  
           
   | 
   | 
   | Liebenbergite | 
  R150037 | 
  Ni2(SiO4) | 
  Gunnar Farber  | 
  Agios Konstantinos, Lavrion District slag localities, Attikí Prefecture, Greece | 
  
           
   | 
   | 
   | Liebigite | 
  R050662 | 
  Ca2(UO2)(CO3)3·11H2O | 
  University of Arizona Mineral Museum 9102 | 
  Schwartzwaelder mine, Jefferson County, Colorado, USA | 
  
           
   | 
   | 
   | Likasite | 
  R060327 | 
  Cu3(NO3)(OH)5·2H2O | 
  Michael Scott S100260 | 
  Dzhezkazgan, Kazakhstan | 
  
           
   | 
   | 
   | Likasite | 
  R090009 | 
  Cu3(NO3)(OH)5·2H2O | 
  William W. Pinch  | 
  Likasi Mine, Jadotville, Katanga, Zaire | 
  
           
   | 
   | 
   | Lileyite | 
  R140773 | 
  Ba2Ti2Na2Fe2+Mg(Si2O7)2O2F2 | 
  Ch. and H. Schäfer  | 
  Graulay, Hillesheim, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Lillianite | 
  R110141 | 
  Pb3-2xAgxBi2+xS6 | 
  Rob Lavinsky  | 
  Pedro claim, King County, Washington, USA | 
  
           
   | 
   | 
   | Linarite | 
  R060130 | 
  CuPb(SO4)(OH)2 | 
  University of Arizona Mineral Museum 9890 | 
  Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Linarite | 
  R060472 | 
  CuPb(SO4)(OH)2 | 
  Michael Scott S100365 | 
  Tiger, Arizona, USA | 
  
           
   | 
   | 
   | Linarite | 
  R120094 | 
  CuPb(SO4)(OH)2 | 
  Michael Scott  S101361  | 
  Daoping mine, Guangxi, China | 
  
           
   | 
   | 
   | Lindgrenite | 
  R050213 | 
  Cu3(Mo6+O4)2(OH)2 | 
  John Dagenais  | 
  Chuquicamata mine, Calama, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Lindgrenite | 
  R060241 | 
  Cu3(Mo6+O4)2(OH)2 | 
  Rock Currier  | 
  San Samuel mine, Carrera Pinto, Chile | 
  
           
   | 
   | 
   | Lindgrenite | 
  R110061 | 
  Cu3(Mo6+O4)2(OH)2 | 
  Ron Gibbs  | 
  Childs Aldwinkle mine, Copper Creek, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Línekite | 
  R141026 | 
  K2Ca3[(UO2)(CO3)3]2·8H2O | 
  William W. Pinch  | 
  Svornost Mine, Jáchymov, Krušné Hory Mts, Karlovy Vary, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Liottite | 
  R120045 | 
  Na16Ca8Si18Al18O72(SO4)5Cl4 | 
  R. Van Dommelen  | 
  Case Collina (Toscopomici quarry), Pitigliano, Grosseto Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Lipscombite | 
  R220008 | 
  Fe2+Fe3+2(PO4)2(OH)2 | 
  Ron Gibbs  | 
  Silver Coin Mine, Valmy, Iron Point Mining District, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Lipuite | 
  R140946 | 
  KNa8Mn3+5Mg0.5[Si12O30(OH)4](PO4)O2(OH)2·4H2O | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  N'Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Liroconite | 
  R050535 | 
  Cu2Al(AsO4)(OH)4·4H2O | 
  University of Arizona Mineral Museum 291 | 
  Wheal Gorland, St. Day, Cornwall, England | 
  
           
   | 
   | 
   | Liskeardite | 
  R060768 | 
  (Al,Fe)32(AsO4)18(OH)42(H2O)22·52H2O | 
  Michael Scott S100935 | 
  Penberthy Croft mine, St. Hilary, Cornwall, England | 
  
           
   | 
   | 
   | Litharge | 
  R060959 | 
  PbO | 
  Michael Scott S101289 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Lithiomarsturite | 
  R100094 | 
  LiCaMn2+3Si5O14(OH) | 
    | 
  Foote mine, Kings Mountain, North Carolina, USA | 
  
           
   | 
   | 
   | Lithiophilite | 
  R070303 | 
  LiMn2+(PO4) | 
  James Shigley  | 
  Vittaniemi, Erajarvi, Orivesi, Etela-Suomen Laani, Finland | 
  
           
   | 
   | 
   | Lithiophilite | 
  R100096 | 
  LiMn2+(PO4) | 
    | 
  Foote mine, Kings Mountain, North Carolina, USA | 
  
           
   | 
   | 
   | Lithiophorite | 
  R070083 | 
  (Al,Li)(Mn4+,Mn3+)O2(OH)2 | 
  James Shigley  | 
  Sausalito Road Quarry, Sausalito, Marine County, California, USA | 
  
           
   | 
   | 
   | Lithiophosphate | 
  R100092 | 
  Li3(PO4) | 
  Luiz Menezes   | 
  Cachoeira mine, Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Lithiotantite | 
  R100165 | 
  LiTa3O8 | 
  Luiz Menezes  | 
  Murundu mine, Jenipapo district, Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Litidionite | 
  R130088 | 
  KNaCuSi4O10 | 
  Rock Currier  | 
  Mt Vesuvius, Napoli, Italy | 
  
           
   | 
   | 
   | Liudongshengite | 
  R180016 | 
  Zn4Cr2(OH)12(CO3)·3H2O | 
  Ron Gibbs  | 
  79 mine, Gila Co., Arizona, USA | 
  
           
   | 
   | 
   | Livingstonite | 
  R050427 | 
  HgSb4S6(S)2 | 
  University of Arizona Mineral Museum 13426 | 
  Huitzuco, Guerrero, Mexico | 
  
           
   | 
   | 
   | Livingstonite | 
  R050453 | 
  HgSb4S6(S)2 | 
  University of Arizona Mineral Museum 13667 | 
  Huitzuco, Guerrero, Mexico | 
  
           
   | 
   | 
   | Lizardite | 
  R060006 | 
  Mg3Si2O5(OH)4 | 
  University of Arizona Mineral Museum 2896 | 
  Snarum, Norway | 
  
           
   | 
   | 
   | Lobanovite | 
  R120068 | 
  K2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4 | 
  Donald Doell  | 
  Apatitovaya Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Lokkaite-(Y) | 
  R061092 | 
  CaY4(CO3)7·9H2O | 
  Marcus Origlieri  | 
  Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan | 
  
           
   | 
   | 
   | Löllingite | 
  R060185 | 
  FeAs2 | 
  Lloyd Twaites  | 
  MW Claim, Seagull Batholith, Cassiar Mountains, Yukon, Canada | 
  
           
   | 
   | 
   | Löllingite | 
  R060668 | 
  FeAs2 | 
  Michael Scott S101325 | 
  Aghbar near Bou-Azzer, Morocco | 
  
           
   | 
   | 
   | Löllingite | 
  R070592 | 
  FeAs2 | 
  James Shigley  | 
  Ebisu mine, Hirukawa, Gifu Prefecture, Honshu, Japan | 
  
           
   | 
   | 
   | Lombardoite | 
  R220033 | 
  Ba2Mn3+(AsO4)2(OH) | 
  Fernando Cámara  | 
  Valletta mine, Maira Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Lomonosovite | 
  R070465 | 
  Na6Na2Ti2Na2Ti2(Si2O7)2(PO4)2O4 | 
  Michael Scott S105790 | 
  Apatitovyi Tsirk (Apatite Circus), Rasvumchorr Mountain, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Loomisite | 
  R210017 | 
  Ba[Be2P2O8]·H2O | 
  Tom Loomis TL256A | 
  Big Chief mine, Pennington County, South Dakota, USA | 
  
           
   | 
   | 
   | Loparite-(Ce) | 
  R070251 | 
  (Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6 | 
  Michael Scott S105531 | 
  Maly Mannepakhk Mt (Malyi Mannepakhk Mt), Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Lópezite | 
  R070043 | 
  K2Cr2O7 | 
  Michael Scott S101397 | 
  Synthetic, made in the Czech Republic | 
  
           
   | 
   | 
   | Lorándite | 
  R060961 | 
  TlAsS2 | 
  Michael Scott S101334 | 
  Allchar, Macedonia | 
  
           
   | 
   | 
   | Lorándite | 
  R110055 | 
  TlAsS2 | 
  Don Doell  | 
  Xingren County, Qianxi'nan Autonomous Prefecture, Guizhou Province, China | 
  
           
   | 
   | 
   | Lorenzenite | 
  R060960 | 
  Na2Ti2O3(Si2O6) | 
  Michael Scott S101383 | 
  Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Lorenzenite | 
  R130051 | 
  Na2Ti2O3(Si2O6) | 
  Don Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Lotharmeyerite | 
  R060862 | 
  CaZn2(AsO4)2·2H2O | 
  Michael Scott S100871 | 
  Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Lourenswalsite | 
  R060468 | 
  (K,Ba)2Ti4(Si,Al)6O14(OH)12 | 
  Michael Scott S100196 | 
  Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA | 
  
           
   | 
   | 
   | Lovozerite | 
  R080107 | 
  Na3CaZrSi6O15(OH)3 | 
  William W. Pinch  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Lovozerite | 
  R120159 | 
  Na3CaZrSi6O15(OH)3 | 
  Donald Doell  | 
  Poudrette quarry, Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Luanheite | 
  R060677 | 
  Ag3Hg | 
  Bob Jenkins  | 
  Elisa de Bordos mine, Tierra Amarilla, Chile | 
  
           
   | 
   | 
   | Ludjibaite | 
  R060413 | 
  Cu5(PO4)2(OH)4 | 
  Bob Jenkins  | 
  Sossego, Carajas, Brazil | 
  
           
   | 
   | 
   | Ludlamite | 
  R040152 | 
  Fe2+3(PO4)2·4H2O | 
  University of Arizona Mineral Museum 15641 | 
  Cobalt, Lemhi County, Idaho, USA | 
  
           
   | 
   | 
   | Ludlamite | 
  R060485 | 
  Fe2+3(PO4)2·4H2O | 
  Michael Scott S100357 | 
  Blackbird District, Lehmi County, Idaho, USA | 
  
           
   | 
   | 
   | Ludlamite | 
  R090071 | 
  Fe2+3(PO4)2·4H2O | 
  Royal Ontario Museum  M54960 | 
  Cigana Mine (ex-Jocão Mine), Galiléia, Minas Gerais  Brazil | 
  
           
   | 
   | 
   | Ludlockite | 
  R100176 | 
  PbFe3+4As3+10O22 | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Ludwigite | 
  R060010 | 
  Mg2Fe3+O2(BO3) | 
  University of Arizona Mineral Museum 9094 | 
  Victoria Quarry, Riverside, California, USA | 
  
           
   | 
   | 
   | Ludwigite | 
  R060844 | 
  Mg2Fe3+O2(BO3) | 
  Bob Jenkins  | 
  Crestmore, California, USA | 
  
           
   | 
   | 
   | Lueshite | 
  R090025 | 
  NaNbO3 | 
  Karl Russ  | 
  Lueshe carbonatite, Kivu Province, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Luetheite | 
  R060088 | 
  CuAl(AsO4)(OH)2 | 
  Andy Anderson  | 
  Alum Gulch, Patagonia, Arizona, USA | 
  
           
   | 
   | 
   | Lulzacite | 
  R110147 | 
  Sr2Fe2+3Al4(PO4)4(OH)10 | 
  Olivier Pourret  | 
  Saint-Aubin-des-Châteaux, Loire-Atlantique, France | 
  
           
   | 
   | 
   | Lüneburgite | 
  R140143 | 
  Mg3[B2(OH)6(PO4)2]·6H2O | 
  Rock Currier  | 
  Lüneburger Kalkberg, Lüneburg, Lower Saxony, Germany | 
  
           
   | 
   | 
   | Luzonite | 
  R060390 | 
  Cu3AsS4 | 
  Michael Scott S100181 | 
  Bern-Shan Pit, Chinkuashi mine, Taipei, Taiwan, Republic of China | 
  
           
   | 
   | 
   | Luzonite | 
  R070247 | 
  Cu3AsS4 | 
  Michael Scott S105151 | 
  Huaron Mining District, San Jose de Huayllay district, Cerro de Pasco, Alcides Carrión Province, Pasco department, Peru | 
  
           
   | 
   | 
   | Macdonaldite | 
  R060770 | 
  BaCa4Si16O36(OH)2·10H2O | 
  Michael Scott S101090 | 
  Rush Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Macfallite | 
  R060391 | 
  Ca2Mn3+3(SiO4)(Si2O7)(OH)3 | 
  Michael Scott S100092 | 
  near Manganese Lake, Copper Harbor, Keweenaw County, Michigan, USA | 
  
           
   | 
   | 
   | Mackayite | 
  R060592 | 
  Fe3+Te4+2O5(OH) | 
  Michael Scott S100792 | 
  Lone Pine mine, Lone Pine Hill area, Wilcox District, Catron County, New Mexico, USA | 
  
           
   | 
   | 
   | Mackinawite | 
  R060388 | 
  (Fe,Ni)1+xS (x = 0-0.07) | 
  Michael Scott S100089 | 
  Hitura, Finland | 
  
           
   | 
   | 
   | Mackinawite | 
  R070302 | 
  (Fe,Ni)1+xS (x = 0-0.07) | 
  James Shigley  | 
  Wannaway Prospect, near Kalgoorlie, Western Australia, Australia | 
  
           
   | 
   | 
   | Macquartite | 
  R210020 | 
  Cu2Pb7(CrO4)4(SiO4)2(OH)2 | 
  Bob Jenkins  | 
  Mammoth-Sth. Anthony M., Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Magadiite | 
  R060994 | 
  Na2Si14O28(OH)2·8H2O | 
  Bob Jenkins  | 
  Trinity Lake, Trinity County, California, USA | 
  
           
   | 
   | 
   | Maghemite | 
  R140712 | 
  (Fe3+0.67◻0.33)Fe3+2O4 | 
  Rock Currier  | 
  Katzenbuckel, Eberbach, Odenwald, Baden-Württemberg, Germany | 
  
           
   | 
   | 
   | Magnesio-fluoro-arfvedsonite | 
  R050515 | 
  NaNa2(Mg4Fe3+)Si8O22F2 | 
  Frank Hawthorne  | 
  unknown | 
  
           
   | 
   | 
   | Magnesio-fluoro-hastingsite | 
  R141082 | 
  NaCa2(Mg4Fe3+)(Si6Al2)O22F2 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Magnesio-fluoro-hastingsite | 
  R141098 | 
  NaCa2(Mg4Fe3+)(Si6Al2)O22F2 | 
  Ch. and H. Schäfer  | 
  Uroi Hill (Arany Hill), Simeria, Hunedoara Co., Romania | 
  
           
   | 
   | 
   | Magnesio-fluoro-hastingsite | 
  R141099 | 
  NaCa2(Mg4Fe3+)(Si6Al2)O22F2 | 
  Ch. and H. Schäfer  | 
  Mt. Vesuvius, Naples, Campania, Italy | 
  
           
   | 
   | 
   | Magnesio-foitite | 
  X050186 | 
  ◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Caltech  | 
  Honshu, Japan | 
  
           
   | 
   | 
   | Magnesio-hastingsite | 
  R040010 | 
  NaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2 | 
  University of Arizona Mineral Museum 4231 | 
  Amity, New York, USA | 
  
           
   | 
   | 
   | Magnesio-hastingsite | 
  R070145 | 
  NaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2 | 
  William W. Pinch  | 
  Niaslo, Basha Valley, Baltistan, Northern Areas, Pakistan | 
  
           
   | 
   | 
   | Magnesio-hastingsite | 
  R070288 | 
  NaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2 | 
  Michael Scott S104903 | 
  Dallas Gem Mine (Gem Mine; Benitoite Mine), New Idria District, San Benito County, California, USA | 
  
           
   | 
   | 
   | Magnesio-riebeckite | 
  R060037 | 
  ◻Na2(Mg3Fe3+2)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 4236 | 
  Pollone, Piedmont, Italy | 
  
           
   | 
   | 
   | Magnesio-riebeckite | 
  R070002 | 
  ◻Na2(Mg3Fe3+2)Si8O22(OH)2 | 
  Michael Scott S100846 | 
  Alto Chapare, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Magnesioalterite | 
  R180015 | 
  Mg2Fe3+4(SO4)4(C2O4)2(OH)4·17H2O | 
  Malcom Alter  | 
  Near Marble Canyon, Coconino County, Arizona, USA | 
  
           
   | 
   | 
   | Magnesioaubertite | 
  R060344 | 
  MgAl(SO4)2Cl·14H2O | 
  Michael Scott S100113 | 
  Grotta de Faraglione, Vulcano, Italy | 
  
           
   | 
   | 
   | Magnesiocarpholite | 
  R140873 | 
  MgAl2Si2O6(OH)4 | 
  Stefan Schorn  | 
  Sengelbach valley, Biesenrode, Wippra Metamorphic Zone, Harz, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Magnesiochlorophoenicite | 
  R140719 | 
  Mg3Zn2(AsO4)(OH,O)6 | 
  Rock Currier  | 
  Sterling mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Magnesiochromite | 
  R050399 | 
  MgCr2O4 | 
  Andy McCarthy  | 
  Troodos Mountains, Cyprus | 
  
           
   | 
   | 
   | Magnesiochromite | 
  R060796 | 
  MgCr2O4 | 
  California Institute of Technology 10576 | 
  State Line Chrome mine (Low's mine), Cecil County, Maryland, USA | 
  
           
   | 
   | 
   | Magnesiochromite | 
  R060797 | 
  MgCr2O4 | 
  California Institute of Technology 11227 | 
  Benbow mine, Stillwater Complex, Mount Wood area, Stillwater County, Montana, USA | 
  
           
   | 
   | 
   | Magnesiocopiapite | 
  R060155 | 
  MgFe3+4(SO4)6(OH)2·20H2O | 
  University of Arizona Mineral Museum 12789 | 
  Denver mine, Santa Cruz County, Arizona, USA | 
  
           
   | 
   | 
   | Magnesiocoulsonite | 
  R070218 | 
  MgV2O4 | 
  Michael Scott S100447 | 
  Pereval Marble Quarry, Sludyanka (Slyudyanka), Baikal area, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Magnesioferrite | 
  R060869 | 
  MgFe3+2O4 | 
  Michael Scott S101024 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Magnesioferrite | 
  R070127 | 
  MgFe3+2O4 | 
  Michael Scott S100406 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Magnesiohulsite | 
  R070223 | 
  Mg2Fe3+O2(BO3) | 
  Michael Scott S100449 | 
  Iten'yurginskoye Deposit, Chukotka (Tchukotka) Okrug, Chukot Peninsula, Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Magnesiokoritnigite | 
  R150002 | 
  Mg(AsO3OH)·H2O | 
  Bob Jenkins  | 
  Torrecillias mine, Sala Grande, Tamarugal Province, Chile | 
  
           
   | 
   | 
   | Magnesiotaaffeite-2N'2S | 
  R070555 | 
  Mg3BeAl8O16 | 
  www.multicolour.com   | 
  Tunduru, Tanzania | 
  
           
   | 
   | 
   | Magnesiotaaffeite-2N'2S | 
  X090001 | 
  Mg3BeAl8O16 | 
  William W. Pinch  | 
  Ratnapura, Sri Lanka | 
  
           
   | 
   | 
   | Magnesiotaaffeite-2N'2S | 
  R090035 | 
  Mg3BeAl8O16 | 
  William W. Pinch  | 
  Ratnapura District, Sri-Lanka | 
  
           
   | 
   | 
   | Magnesiotaaffeite-6N'3S | 
  X070005 | 
  Mg2BeAl6O12 | 
  www.multicolour.com  | 
  Tunduru, Tanzania | 
  
           
   | 
   | 
   | Magnesiotaaffeite-6N'3S | 
  R090019 | 
  Mg2BeAl6O12 | 
  William W. Pinch  | 
  Ratnapura District, Sri Lanka | 
  
           
   | 
   | 
   | Magnesite | 
  R040114 | 
  Mg(CO3) | 
  University of Arizona Mineral Museum 7562 | 
  Snarum, Norway | 
  
           
   | 
   | 
   | Magnesite | 
  X050115 | 
  Mg(CO3) | 
  CIT 2123 | 
  Serra Das Egnas, Brazil | 
  
           
   | 
   | 
   | Magnesite | 
  X050116 | 
  Mg(CO3) | 
  CIT 1450 | 
  Gustine Merced County, California, USA | 
  
           
   | 
   | 
   | Magnesite | 
  R050443 | 
  Mg(CO3) | 
  Eugene Schlepp  | 
  Brumado, Bahia, Brazil | 
  
           
   | 
   | 
   | Magnesite | 
  R050676 | 
  Mg(CO3) | 
  University of Arizona Mineral Museum 3874 | 
  Tyrol, Austria | 
  
           
   | 
   | 
   | Magnesium stearate | 
  D120003 | 
   | 
  David Blake  | 
  Synthetic | 
  
           
   | 
   | 
   | Magnetite | 
  R060191 | 
  Fe2+Fe3+2O4 | 
  Lloyd Twaites  | 
  Merry Widow mine, Vancouver Island, British Columbia, Canada | 
  
           
   | 
   | 
   | Magnetite | 
  R060222 | 
  Fe2+Fe3+2O4 | 
  Rock Currier  | 
  Cerro Huañaquino, Potosi Department, Bolivia | 
  
           
   | 
   | 
   | Magnetite | 
  R060656 | 
  Fe2+Fe3+2O4 | 
  Michael Scott S101168 | 
  Jacupiranga Pegmatite, Sao Paulo State, Brazil | 
  
           
   | 
   | 
   | Magnetite | 
  R061111 | 
  Fe2+Fe3+2O4 | 
  Michael Scott S104099 | 
  near Scotia Talc mine, Barberton Mountain, Transvaal, South Africa | 
  
           
   | 
   | 
   | Magnetite | 
  R080025 | 
  Fe2+Fe3+2O4 | 
  William W. Pinch  | 
  2500' level, Zinc Corporation of America mine #4, Balmat, New York, USA | 
  
           
   | 
   | 
   | Magnetite | 
  R140861 | 
  Fe2+Fe3+2O4 | 
  Rock Currier  | 
  Bon Accord, Barberton District, Mpumalanga Province, South Africa | 
  
           
   | 
   | 
   | Magnetoplumbite | 
  R060074 | 
  PbFe3+12O19 | 
  University of Arizona Mineral Museum 16289 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Magnussonite | 
  R100027 | 
  Mn2+10As3+6O18(OH,Cl)2 | 
  William W. Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Majorite | 
  R210005 | 
  Mg3(MgSi)(SiO4)3 | 
  Jurgen Konzett TP-MA-6 | 
  Synthesized at at 20-25 GPa and 1600-1700 °C | 
  
           
   | 
   | 
   | Makatite | 
  R050594 | 
  Na2Si4O8(OH)2·4H2O | 
  Marcus Origlieri  | 
  Aris phonolite, Windhoek District, Windhoek, Namibia | 
  
           
   | 
   | 
   | Malachite | 
  R050531 | 
  Cu2(CO3)(OH)2 | 
  University of Arizona Mineral Museum 4809 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Malachite | 
  R050508 | 
  Cu2(CO3)(OH)2 | 
  University of Arizona Mineral Museum 12261 | 
  Kambova, Kantanga, Zaire | 
  
           
   | 
   | 
   | Malanite | 
  R070051 | 
  Cu1+(Ir3+Pt4+)S4 | 
  Michael Scott S105075 | 
  placer from Philipp Massif, Kamchatka, Russia | 
  
           
   | 
   | 
   | Malayaite | 
  R061131 | 
  CaSnO(SiO4) | 
  Michael Scott S100381 | 
  Humpolec, Czech Republic | 
  
           
   | 
   | 
   | Malayaite | 
  R061106 | 
  CaSnO(SiO4) | 
  Michael Scott S100848 | 
  Meldon, Dartmoor, Devon, England | 
  
           
   | 
   | 
   | Malayaite | 
  R080024 | 
  CaSnO(SiO4) | 
  Mark N. Feinglos, William P. Pinch  | 
  Ash Mountain, McDame, British Columbia, Canada | 
  
           
   | 
   | 
   | Malhmoodite | 
  R060462 | 
  Fe2+Zr(PO4)2·4H2O | 
  Michael Scott S100114 | 
  Union Carbide Vanadium mine, Wilson Springs, Garland County, Arkansas, USA | 
  
           
   | 
   | 
   | Malhmoodite | 
  R200009 | 
  Fe2+Zr(PO4)2·4H2O | 
  Tom Loomis  | 
  Scott's R.Q. mine, Custer Co., South Dakota, U.S.A. | 
  
           
   | 
   | 
   | Mammothite | 
  R130100 | 
  Pb6Cu4AlSb5+O2(SO4)2Cl4(OH)16 | 
  Joe Ruiz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Manaksite | 
  R060693 | 
  KNaMn2+Si4O10 | 
  Michael Scott S100949 | 
  Palitra pegmatite, Kedykverpakhk Mountain, Lovozero massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Manandonite | 
  R060968 | 
  Li2Al4(Si2AlB)O10(OH)8 | 
  Michael Scott S100388 | 
  Antandro Komby mine, Manandona River, Antsirabe, Madagascar | 
  
           
   | 
   | 
   | Mandarinoite | 
  R140742 | 
  Fe3+2(Se4+O3)3·6H2O | 
  Rock Currier  | 
  Skouriotissa mine, Skouriotissa, Nicosia District, Cyprus | 
  
           
   | 
   | 
   | Mandarinoite | 
  R220014 | 
  Fe3+2(Se4+O3)3·6H2O | 
  Jim McGlasson  | 
  Wind Mountain mine, Washoe County, Nevada, U.S.A. | 
  
           
   | 
   | 
   | Manganbabingtonite | 
  R140743 | 
  Ca2Mn2+Fe3+Si5O14(OH) | 
  Rock Currier  | 
  Iron Cap mine, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Mangani-obertiite | 
  R141096 | 
  NaNa2(Mg3Mn3+Ti4+)Si8O22O2 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Manganilvaite | 
  R070334 | 
  CaFe2+Fe3+Mn2+(Si2O7)O(OH) | 
  Michael Scott S100979 | 
  First Sovetskiy mine, Dalnegorsk, Far East of Russia | 
  
           
   | 
   | 
   | Manganite | 
  R060827 | 
  Mn3+O(OH) | 
  Michael Scott S101187 | 
  Roberts mine, Crosby, Minnesota, USA | 
  
           
   | 
   | 
   | Manganite | 
  R070269 | 
  Mn3+O(OH) | 
  Michael Scott S102942 | 
  Wessels mine, Hotazel, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Manganite | 
  R070593 | 
  Mn3+O(OH) | 
  James Shigley  | 
  Ilfeld, near Nordhausen, Harz Mountains, Thuringia, Germany | 
  
           
   | 
   | 
   | Mangano-ferri-eckermannite | 
  R070122 | 
  NaNa2(Mn2+4Fe3+)Si8O22(OH)2 | 
  Michael Scott S100408 | 
  Tanohata mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Mangano-mangani-ungarettiite | 
  R050244 | 
  NaNa2(Mn2+2Mn3+3)Si8O22O2 | 
  Marcus Origlieri  | 
  Hoskins mine, near Grenfell, New South Wales, Australia | 
  
           
   | 
   | 
   | Manganoeudialyte | 
  R110212 | 
  Na14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6 | 
  Gunnar Farber  | 
  Pocos de Caldas plateau, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Manganogrunerite | 
  R060378 | 
  ◻Mn2Fe2+5Si8O22(OH)2 | 
  Michael Scott S100223 | 
  Brunsjogruvan (Brunsjo mine), near Hallefors, Orebro, Sweden | 
  
           
   | 
   | 
   | Manganohörnesite | 
  R061005 | 
  Mn2+3(AsO4)2·8H2O | 
  Michael Scott S101277 | 
  Mossgruven, Nordmark, Sweden | 
  
           
   | 
   | 
   | Manganoneptunite | 
  R060901 | 
  KNa2LiMn2+2Ti2Si8O24 | 
  Royal Ontario Museum M52451 | 
  Mont St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Manganoneptunite | 
  R130094 | 
  KNa2LiMn2+2Ti2Si8O24 | 
  Michael Scott S100990 | 
  Mount Kurnasurt, Lovozero Massif, Kola Peninsula, USSR | 
  
           
   | 
   | 
   | Manganonordite-(Ce) | 
  R140749 | 
  Na3SrCeMn2+Si6O17 | 
  Rock Currier  | 
  Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Manganoquadratite | 
  R090021 | 
  AgMnAsS3 | 
  William W. Pinch  | 
  Uchucchacua, Lima Department, Peru | 
  
           
   | 
   | 
   | Manganosite | 
  R060695 | 
  MnO | 
  Bob Jenkins  | 
  Franklin, New Jersey, USA | 
  
           
   | 
   | 
   | Manganosite | 
  R060757 | 
  MnO | 
  Michael Scott S101129 | 
  Nordmark, Sweden | 
  
           
   | 
   | 
   | Manganvesuvianite | 
  R060377 | 
  Ca19Mn3+Al10Mg2(SiO4)10(Si2O7)4O(OH)9 | 
  Michael Scott S100306 | 
  K'Chwaning II mine, Kalahari manganese field, north Cape Province, South Africa | 
  
           
   | 
   | 
   | Manitobaite | 
  R130259 | 
  Na16Mn2+25Al8(PO4)30 | 
  Rock Currier  | 
  Gottcha Claim (Pegmatite No. 22), Cross Lake, Manitoba, Canada | 
  
           
   | 
   | 
   | Manitobaite | 
  R130260 | 
  Na16Mn2+25Al8(PO4)30 | 
  Rock Currier  | 
  Gottcha Claim (Pegmatite No. 22), Cross Lake, Manitoba, Canada | 
  
           
   | 
   | 
   | Manjiroite | 
  R060379 | 
  Na(Mn4+7Mn3+)O16 | 
  Michael Scott S100035 | 
  Wessels mine, Kalahari Manganese Field, South Africa | 
  
           
   | 
   | 
   | Mannardite | 
  R060966 | 
  Ba(Ti6V3+2)O16 | 
  Mark Mauthner 3094 | 
  Rough Claims, Laird Mining Division, British Columbia, Canada | 
  
           
   | 
   | 
   | Mannardite | 
  R080136 | 
  Ba(Ti6V3+2)O16 | 
  Luiz Menezes  | 
  Corinto area, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Mansfieldite | 
  R060409 | 
  Al(AsO4)·2H2O | 
  Herb Obodda 044 | 
  Djebel Debagh, Constantine, Algeria | 
  
           
   | 
   | 
   | Mansfieldite | 
  R060951 | 
  Al(AsO4)·2H2O | 
  Bob Jenkins  | 
  Pampa Larga Mining District, Chile | 
  
           
   | 
   | 
   | Mapimite | 
  R080002 | 
  Zn2Fe3+3(AsO4)3(OH)4·10H2O | 
  William W. Pinch, from M Romero 5749 | 
  Level 5 between Palomes Oriente and San Carlos, Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Marcasite | 
  R060882 | 
  FeS2 | 
  Bob Jenkins  | 
  Ive's Quarry, Racine, Wisconsin, USA | 
  
           
   | 
   | 
   | Marécottite | 
  R070057 | 
  Mg3O6(UO2)8(SO4)4(OH)2·28H2O | 
  Michael Scott S105077 | 
  La Creusaz U prospect, Marecottes Village, Canton, Wallis, Switzerland | 
  
           
   | 
   | 
   | Margaritasite | 
  R060461 | 
  Cs2(UO2)2(VO4)2·H2O | 
  Michael Scott S100084 | 
  Margaritas Open Pit, Sierra Pena Blanca, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Margarite | 
  R060839 | 
  CaAl2Si2Al2O10(OH)2 | 
  Michael Scott S100904 | 
  Old Emery mine, Chester, Massachusetts, USA | 
  
           
   | 
   | 
   | Margarosanite | 
  R120111 | 
  Ca2PbSi3O9 | 
  Caltech   H-2644 | 
  Parker shaft, Franklin, New Jersey, USA | 
  
           
   | 
   | 
   | Marialite | 
  R040043 | 
  Na4Al3Si9O24Cl | 
  University of Arizona Mineral Museum 8081 | 
  Gouverneur, New York, USA | 
  
           
   | 
   | 
   | Marialite | 
  R040113 | 
  Na4Al3Si9O24Cl | 
  University of Arizona Mineral Museum 4398 | 
  Gouverneur, New York, USA | 
  
           
   | 
   | 
   | Marialite | 
  R050123 | 
  Na4Al3Si9O24Cl | 
  Syed Shah  | 
  Pakistan | 
  
           
   | 
   | 
   | Marialite | 
  R060297 | 
  Na4Al3Si9O24Cl | 
  Herb Obodda 050 | 
  Morogoro District, Marasi, Tanzania | 
  
           
   | 
   | 
   | Marialite | 
  R060469 | 
  Na4Al3Si9O24Cl | 
  Michael Scott S100276 | 
  Mpwa-Mpwa mine, Umba Valley, near Arusha, Tanzania | 
  
           
   | 
   | 
   | Marialite | 
  R060458 | 
  Na4Al3Si9O24Cl | 
  Michael Scott S100219 | 
  Dading, Nepal | 
  
           
   | 
   | 
   | Marialite | 
  R060526 | 
  Na4Al3Si9O24Cl | 
  Michael Scott S100229 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Marialite | 
  R070689 | 
  Na4Al3Si9O24Cl | 
  Michael Scott S100902 | 
  Itaguassu, Espirito Santo State, Brazil | 
  
           
   | 
   | 
   | Marialite | 
  R100112 | 
  Na4Al3Si9O24Cl | 
  Robert Woodside  | 
  Sar-e-Sang District,  Koksha Valley,  Badakhshan Province,  Afghanistan | 
  
           
   | 
   | 
   | Marialite | 
  R100167 | 
  Na4Al3Si9O24Cl | 
  Mineralogical Museum, Harvard University 135997 | 
  Mapapwa, Dodoma, Tanzania | 
  
           
   | 
   | 
   | Marićite | 
  R070273 | 
  NaFe2+(PO4) | 
  Mark Mauthner 1182 | 
  Locality 16, Big Fish River, Richardson Mountains, Dawson Mining District, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Maricopaite | 
  R120147 | 
  Ca2Pb7(Si36Al12)O99·n(H2O,OH) | 
  Bob Jenkins and Ron Gibbs  | 
  Moon Anchor mine, Hummingbird Spring,  Big Horn Mts, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Marinellite | 
  R070078 | 
  Na42Ca6Al36Si36O144(SO4)8Cl2·6H2O | 
  Michael Scott S105076 | 
  Monte Cavalluccio, Sacrofano, Campagnano di Roma, Italy | 
  
           
   | 
   | 
   | Markascherite | 
  R100030 | 
  Cu3(MoO4)(OH)4 | 
  Mark Ascher  | 
  Childs Aldwinkle mine, Bunker Hill District, Copper Creek, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Marokite | 
  R060829 | 
  CaMn3+2O4 | 
  Michael Scott S101266 | 
  Tachguagalt, Morocco | 
  
           
   | 
   | 
   | Marokite | 
  R070275 | 
  CaMn3+2O4 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Marshite | 
  R100001 | 
  CuI | 
  Marcus Origlieri  | 
  Rubtsovskiy, Altai Kray, Russia | 
  
           
   | 
   | 
   | Marsturite | 
  R141122 | 
  NaCaMn2+3Si5O14(OH) | 
  Joan Abella i Creus  | 
  Joaquina 1a mine, Bellmunt del Priorat, Tarragona, Catalonia, Spain | 
  
           
   | 
   | 
   | Marsturite | 
  R141119 | 
  NaCaMn2+3Si5O14(OH) | 
  Marcus Origlieri  | 
  Gozaisho mine, Fukushima Prefecture, Japan | 
  
           
   | 
   | 
   | Marsturite | 
  R141210 | 
  NaCaMn2+3Si5O14(OH) | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, Kalahari Manganese Field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Marthozite | 
  R090052 | 
  Cu2+(UO2)3(Se4+O3)2O2·8H2O | 
  William W. Pinch  | 
  Musonoi mine, Kolwezi, Katanga, Congo | 
  
           
   | 
   | 
   | Mascagnite | 
  R060640 | 
  (NH4)2(SO4) | 
  Michael Scott S100822 | 
  Ravat, Tajikistan | 
  
           
   | 
   | 
   | Mascagnite | 
  R141105 | 
  (NH4)2(SO4) | 
  Kenny Lloyd and Dirk Andrews  | 
  Cultured biogenically in laboratory. | 
  
           
   | 
   | 
   | Mascagnite | 
  R141117 | 
  (NH4)2(SO4) | 
  Kenny Lloyd and Dirk Andrews  | 
  Ravat Saravanan, Tajikistan | 
  
           
   | 
   | 
   | Masutomilite | 
  R061008 | 
  KLiAlMn2+(Si3Al)O10(F,OH)2 | 
  Michael Scott S101311 | 
  Tanokamiyama, Shiga Prefecture, Japan | 
  
           
   | 
   | 
   | Matlockite | 
  R140538 | 
  PbClF | 
  The University of Arizona Mineral Museum 5194 and 10550  | 
  Mammoth mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Mattheddleite | 
  R070490 | 
  Pb5(SiO4)1.5(SO4)1.5Cl | 
  Bob Jenkins  | 
  Dry Smale Gill, Roughton Gill, Caldbeck Fells, Cumbria (Cumberland), England, United Kingdom | 
  
           
   | 
   | 
   | Mawbyite | 
  R080011 | 
  PbFe3+2(AsO4)2(OH)2 | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Maxwellite | 
  R060955 | 
  NaFe3+(AsO4)F | 
  Bob Jenkins  | 
  Squaw Creek Tin mine, Catron County, New Mexico, USA | 
  
           
   | 
   | 
   | Mbobomkulite | 
  R060597 | 
  (Ni,Cu)Al4(NO3,SO4)2(OH)12·3H2O | 
  Michael Scott S100798 | 
  Jomac mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Mcgillite | 
  R110206 | 
  Mn2+8Si6O15(OH)8Cl2 | 
  Royal Ontario Museum M36127 | 
  Sullivan mine, Kimberley, British Columbia, Canada | 
  
           
   | 
   | 
   | Mcgovernite | 
  R110030 | 
  Zn3(Mn2+,Mg,Fe3+,Al)42(As3+O3)2(As5+O4)4[(Si,As5+)O4]8(OH)42 | 
  William W Pinch  | 
  Sterling Hill mine, Odgensberg, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Mcguinnessite | 
  R070082 | 
  CuMg(CO3)(OH)2 | 
  James Shigley  | 
  Copper King mine, Red Mountain District, Mendocino County, California, USA | 
  
           
   | 
   | 
   | Medaite | 
  R130098 | 
  Mn2+6V5+Si5O18(OH) | 
  Donald Doell (Large Piece) and Rock Currier (Small Piece)  | 
  Molinello mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Meieranite | 
  R140947 | 
  Na2Sr3MgSi6O17 | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Meierite | 
  R170045 | 
  Ba44Si66Al30O192Cl25(OH)33 | 
  Ron Peterson  | 
  Gun Claim, Yukon Canada | 
  
           
   | 
   | 
   | Meionite | 
  R040169 | 
  Ca4Al6Si6O24(CO3) | 
  University of Arizona Mineral Museum 12235 | 
  Black Hills, South Dakota, USA | 
  
           
   | 
   | 
   | Melanophlogite | 
  R060863 | 
  C2H17O5·Si46O92 | 
  Michael Scott S100869 | 
  6 miles east of Mount Hamilton, Santa Clara County, California, USA | 
  
           
   | 
   | 
   | Melanophlogite | 
  R110071 | 
  C2H17O5·Si46O92 | 
  Renato & Adriana Pagano  | 
  Giona mine, Milena, Caltanissetta Province, Sicily, Italy | 
  
           
   | 
   | 
   | Melanostibite | 
  R200016 | 
  Mn2Fe3+Sb5+O6 | 
  Markus and Stefan Wiklund #00008 | 
  Langban mine, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Melanotekite | 
  R090032 | 
  Pb2Fe3+2O2(Si2O7) | 
  William W. Pinch  | 
  Kombat, Namibia | 
  
           
   | 
   | 
   | Melanovanadite | 
  R050555 | 
  Ca(V5+,V4+)4O10·5H2O | 
  Dave Bunk Minerals  | 
  Ragra mine, Cerro de Pasco Province, Pasco Department, Peru | 
  
           
   | 
   | 
   | Melanovanadite | 
  R060131 | 
  Ca(V5+,V4+)4O10·5H2O | 
  University of Arizona Mineral Museum 1112 | 
  Minas Ragra, Peru | 
  
           
   | 
   | 
   | Meliphanite | 
  R060786 | 
  Ca4(Na,Ca)4Be4AlSi7O24(F,O)4 | 
  Michael Scott S101068 | 
  Brevig, Norway | 
  
           
   | 
   | 
   | Mellite | 
  R070574 | 
  Al2C6(COO)6·16H2O | 
  James Shigley  | 
  Tuscany, Italy | 
  
           
   | 
   | 
   | Mendipite | 
  R050669 | 
  Pb3O2Cl2 | 
  University of Arizona Mineral Museum 9713 | 
  Mendip Hills, Higher Pits, Somerset, England | 
  
           
   | 
   | 
   | Mendozavilite-NaCu | 
  R120038 | 
  [Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3] | 
  Bob Jenkins  | 
  Lomas Bayas mine, Baquedano, Antofagasta Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Mendozite | 
  R070315 | 
  NaAl(SO4)2·11H2O | 
  James Shigley  | 
  Gold Bottom mine, Inyo County, California, USA | 
  
           
   | 
   | 
   | Meneghinite | 
  R050444 | 
  Pb13CuSb7S24 | 
  Peter Megaw  | 
  Bottino, Tucsany, Italy | 
  
           
   | 
   | 
   | Meneghinite | 
  R070093 | 
  Pb13CuSb7S24 | 
  James Shigley  | 
  Kalkar Quarry, Santa Cruz, Santa Cruz County, California, USA | 
  
           
   | 
   | 
   | Menezesite | 
  R060979 | 
  Ba3MgZr4Nb12O42·12H2O | 
  Michael Scott S100864 | 
  Jacupiranga mine, Cajati, Sao Paulo, Brazil | 
  
           
   | 
   | 
   | Mercallite | 
  R070072 | 
  KH(SO4) | 
  Michael Scott S105078 | 
  crater of Mount Vesuvius, Campagnano di Roma, Italy | 
  
           
   | 
   | 
   | Mercury | 
  R070277 | 
  Hg | 
  Michael Scott S105390 | 
  Socrates Mine, Sonoma County, California, USA | 
  
           
   | 
   | 
   | Merlinoite | 
  R130095 | 
  K5Ca2(Si23Al9)O64·24H2O | 
  Donald Doell  | 
  Pollena quarry, Vesuvius, Napoli, Campania, Italy | 
  
           
   | 
   | 
   | Merrillite | 
  R150063 | 
  Ca9NaMg(PO4)7 | 
  Xiande Xie and Xiangping Gu  | 
  Suizhou L6 chondrite, Dayanpo, 12.5 km southeast of the city of Suizhou, Hubei Province, China (35°18’N, 113°35’E) | 
  
           
   | 
   | 
   | Merwinite | 
  R070195 | 
  Ca3Mg(SiO4)2 | 
  California Institute of Technology CIT-14405 | 
  Commercial Quarry, Riverside County, California, USA | 
  
           
   | 
   | 
   | Mesolite | 
  R040139 | 
  Na2Ca2(Si9Al6)O30·8H2O | 
  University of Arizona Mineral Museum 9618 | 
  Lake Superior beach,  41 miles north of Tofte, Minnesota, USA | 
  
           
   | 
   | 
   | Mesolite | 
  R040140 | 
  Na2Ca2(Si9Al6)O30·8H2O | 
  University of Arizona Mineral Museum 16169 | 
  Challis, Idaho, USA | 
  
           
   | 
   | 
   | Mesolite | 
  R050013 | 
  Na2Ca2(Si9Al6)O30·8H2O | 
  University of Arizona Mineral Museum 10480 | 
  Poona, Maharashtra, India | 
  
           
   | 
   | 
   | Messelite | 
  R210009 | 
  Ca2Fe2+(PO4)2·2H2O | 
  Tom Loomis  | 
  Palermo mine, Grafton Co., New Hampshire | 
  
           
   | 
   | 
   | Meta-autunite | 
  R050612 | 
  Ca(UO2)2(PO4)2·6H2O | 
  Dave Bunk Minerals  | 
  Daybreak mine, Mt. Spokane, Spokane County, Washington, USA | 
  
           
   | 
   | 
   | Meta-autunite | 
  R060434 | 
  Ca(UO2)2(PO4)2·6H2O | 
  Michael Scott S100368 | 
  Hyverneresse, Creuse, France | 
  
           
   | 
   | 
   | Meta-autunite | 
  R060476 | 
  Ca(UO2)2(PO4)2·6H2O | 
  Michael Scott S100363 | 
  San Pedro mine, Malacheta, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Meta-autunite | 
  R141039 | 
  Ca(UO2)2(PO4)2·6H2O | 
  Rob Lavinsky  | 
  Spruce Pine District, Avery County, North Carolina, USA | 
  
           
   | 
   | 
   | Metaborite | 
  R130694 | 
  HBO2 | 
  Rock Currier  | 
  Chelkar salt dome, Aksai Valley, Aktobe Province, Kazakhstan | 
  
           
   | 
   | 
   | Metacinnabar | 
  R060950 | 
  HgS | 
  Bob Jenkins  | 
  Ryan mine, Contra Costa County, California, USA | 
  
           
   | 
   | 
   | Metacinnabar | 
  R180027 | 
  HgS | 
  Joseph P. Becker  | 
  Twin Creeks mine, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Metaheinrichite | 
  R060778 | 
  Ba(UO2)2(AsO4)2·8H2O | 
  Michael Scott S101284 | 
  Schmiedestoll, Wittichen, Schwarzwald, Germany | 
  
           
   | 
   | 
   | Metahewettite | 
  R070199 | 
  CaV5+6O16·3H2O | 
  James Shigley  | 
  Fish Creek Range, south of Eureka, Eureka County, Nevada, USA | 
  
           
   | 
   | 
   | Metaköttigite | 
  R130695 | 
  (Zn,Fe3+)3(AsO4)2·8(H2O,OH) | 
  Rock Currier  | 
  Ojuela mine, Mapimí, Municipio de Mapimí, Durango, Mexico | 
  
           
   | 
   | 
   | Metalodèvite | 
  R130693 | 
  Zn(UO2)2(AsO4)2·10H2O | 
  Rock Currier  | 
  Riviéral, Lodève, Hérault, Languedoc-Roussillon, France | 
  
           
   | 
   | 
   | Metamunirite | 
  R060624 | 
  NaV5+O3 | 
  Michael Scott S100795 | 
  Big Gypsum Valley, San Miguel County, Colorado, USA | 
  
           
   | 
   | 
   | Metarauchite | 
  R120114 | 
  Ni(UO2)2(AsO4)2·8H2O | 
  Dr Peter Kolesar  | 
  Schweizer vein, 90 level, Eduard mine, Jachymov, Krusne Hory Mts., Czech Republic | 
  
           
   | 
   | 
   | Metarossite | 
  R060598 | 
  CaV5+2O6·2H2O | 
  Michael Scott S100799 | 
  Arrowhead Claim, Slick Rock, San Miguel County, Colorado, USA | 
  
           
   | 
   | 
   | Metarossite | 
  R100065 | 
  CaV5+2O6·2H2O | 
  Bob Jenkins  | 
  Blue Cap mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Metaschoderite | 
  R100023 | 
  Al(PO4)·3H2O | 
  Marcus Origlieri  | 
  Fish Creek Range, Eureka County, Nevada, USA | 
  
           
   | 
   | 
   | Metastibnite | 
  R060755 | 
  Sb2S3 | 
  Michael Scott S101259 | 
  San Jose mine, Oruro, Bolivia | 
  
           
   | 
   | 
   | Metatorbernite | 
  R040171 | 
  Cu(UO2)2(PO4)2·8H2O | 
  University of Arizona Mineral Museum 6497 | 
  La Luz de Cobre, Sonora, Mexico | 
  
           
   | 
   | 
   | Metatorbernite | 
  R070509 | 
  Cu(UO2)2(PO4)2·8H2O | 
  James Shigley  | 
  Musonoi mine, Kolwezi, Katanga, Congo | 
  
           
   | 
   | 
   | Metatorbernite | 
  R070686 | 
  Cu(UO2)2(PO4)2·8H2O | 
  Michael Scott S102637 | 
  Fichtelgebirge, Franconia, Bavaria, Germany | 
  
           
   | 
   | 
   | Metatorbernite | 
  R070683 | 
  Cu(UO2)2(PO4)2·8H2O | 
  Michael Scott S102638 | 
  Chalk Mountain mine, Spruce Pine, Spruce Pine District, Mitchell County, North Carolina, USA | 
  
           
   | 
   | 
   | Metatorbernite | 
  R120014 | 
  Cu(UO2)2(PO4)2·8H2O | 
  Donald Doell  | 
  Governor's Lake pegmatite, Halifax County, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Metatorbernite | 
  R130109 | 
  Cu(UO2)2(PO4)2·8H2O | 
  Don Doell  | 
  Shinkolobwe mine, Katanga, Zaire | 
  
           
   | 
   | 
   | Metatorbernite | 
  R140872 | 
  Cu(UO2)2(PO4)2·8H2O | 
  Stefan Schorn  | 
  Roland mine, Wölsendorf East District, Wölsendorf Fluorite mining District, Schwandorf, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Metauranocircite | 
  R050575 | 
  Ba(UO2)2(PO4)2·6H2O | 
  University of Arizona Mineral Museum 3041 | 
  Voightland, Saxony, Germany | 
  
           
   | 
   | 
   | Metauranocircite II | 
  R070721 | 
  Ba(UO2)2(PO4)2·6H2O | 
  James Shigley  | 
  Streuberg Quarry, Bergen, Falkenstein, Voigtland, Saxony, Germany | 
  
           
   | 
   | 
   | Metavariscite | 
  R050461 | 
  Al(PO4)·2H2O | 
  University of Arizona Mineral Museum 6532 | 
  Utahlite Hill, Lucin, Utah, USA | 
  
           
   | 
   | 
   | Metavivianite | 
  R130545 | 
  Fe2+Fe3+2(PO4)2(OH)2·6H2O | 
  Rock Currier  | 
  Rapid Creek, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Metavoltine | 
  R060835 | 
  K2Na6Fe2+Fe3+6O2(SO4)12·18H2O | 
  Bob Jenkins  | 
  Cetine mine, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Metavoltine | 
  R070542 | 
  K2Na6Fe2+Fe3+6O2(SO4)12·18H2O | 
  James Shigley  | 
  Vulcano Island. Lipari Islands, Messina Province, Sicily, Italy | 
  
           
   | 
   | 
   | Metazeunerite | 
  R050524 | 
  Cu(UO2)2(AsO4)2·8H2O | 
  University of Arizona Mineral Museum 9808 | 
  Majuba Hill mine, Pershing County, Nevada | 
  
           
   | 
   | 
   | Metazeunerite | 
  R060301 | 
  Cu(UO2)2(AsO4)2·8H2O | 
  University of Arizona Mineral Museum 2484 | 
  Joachimstal, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Metazeunerite | 
  R070314 | 
  Cu(UO2)2(AsO4)2·8H2O | 
  James Shigley  | 
  Mylar mine, Majuba Hill, Antelope District, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Metazeunerite | 
  R110205 | 
  Cu(UO2)2(AsO4)2·8H2O | 
  Michael Scott  S102006 | 
  Roter Berg District, Schneeberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Meurigite-K | 
  R070105 | 
  KFe3+8(PO4)6(OH)7·6.5H2O | 
  Bob Jenkins  | 
  Teskov, Czech Republic | 
  
           
   | 
   | 
   | Meurigite-K | 
  R110135 | 
  KFe3+8(PO4)6(OH)7·6.5H2O | 
  Luiz Menezes  | 
  Sapucaia mine, Galileia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Meurigite-Na | 
  R130084 | 
  [Na(H2O)2.5][Fe3+8(PO4)6(OH)7(H2O)4] | 
  Anthony R. Kampf   | 
  Silver Coin mine, Valmy, Iron Point district, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Meyerhofferite | 
  R050671 | 
  CaB3O3(OH)5·H2O | 
  University of Arizona Mineral Museum 6263 | 
  Inyo County, California, USA | 
  
           
   | 
   | 
   | Miargyrite | 
  R050440 | 
  AgSbS2 | 
  University of Arizona Mineral Museum 1494 | 
  Saint Andreasberg, Harz Mountains, Niedersachsen, Germany | 
  
           
   | 
   | 
   | Miargyrite | 
  R050480 | 
  AgSbS2 | 
  California Institute of Technology 20717 | 
  Boulder County, Colorado, USA | 
  
           
   | 
   | 
   | Miassite | 
  R070075 | 
  Rh17S15 | 
  Michael Scott S105079 | 
  Yukhtochka placer, Tributary of Aldan River, Yakutia, Russia | 
  
           
   | 
   | 
   | Microcline | 
  R040154 | 
  K(AlSi3O8) | 
  University of Arizona Mineral Museum 81 | 
  Mitchell County, North Carolina, USA | 
  
           
   | 
   | 
   | Microcline | 
  R050054 | 
  K(AlSi3O8) | 
  Rock Currier  | 
  Kenticha, Negele area, Sidamo Province, Ethiopia | 
  
           
   | 
   | 
   | Microcline | 
  R050150 | 
  K(AlSi3O8) | 
  Dave Bunk Minerals  | 
  Crystal Peak area, Park/Teller Counties, Colorado, USA | 
  
           
   | 
   | 
   | Microcline | 
  R050193 | 
  K(AlSi3O8) | 
  Dave Bunk Minerals  | 
  Devil's Head, Douglas County, Colorado, USA | 
  
           
   | 
   | 
   | Microcline | 
  X050117 | 
  K(AlSi3O8) | 
  G.R. Rossman 1281 | 
  White Queen mine, Pala, San Diego County, California, USA | 
  
           
   | 
   | 
   | Microcline | 
  R120005 | 
  K(AlSi3O8) | 
  Marcus Origlieri  | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Microcline | 
  R150015 | 
  K(AlSi3O8) | 
  Jennifer Schmidt LDP12-12 | 
  Unknown | 
  
           
   | 
   | 
   | Microlite | 
  R070058 | 
  (Ca,Na)2Ta2(O,OH,F)7 | 
  Michael Scott S105081 | 
  Kyoktogai pegmatite field, Altai, Xinjinag Province, China | 
  
           
   | 
   | 
   | Microsommite | 
  R100090 | 
  [(Na,K)6(SO4)][Ca2Cl2][(Si6Al6O24)] | 
  Marcus Origlieri  | 
  Monte Somma, Campania, Italy | 
  
           
   | 
   | 
   | Miersite | 
  R110034 | 
  AgI | 
  William W Pinch  | 
  Block 2-1, 100 meter level, Rubtsovsk mine, Rudniy Altai Mountains, Russia | 
  
           
   | 
   | 
   | Miersite | 
  R110170 | 
  AgI | 
  Marcus Origlieri  | 
  Proprietary mine, Broken Hill, Australia | 
  
           
   | 
   | 
   | Miguelromeroite | 
  R070064 | 
  Mn5(AsO3OH)2(AsO4)2(H2O)4 | 
  Bob Jenkins  | 
  Veta Negra mine, Pampa Larga Mining District, Tierra Amarilla, Chile | 
  
           
   | 
   | 
   | Mikenewite | 
  R210021 | 
  Mn2+(S4+O3)·3H2O | 
  Bob Jenkins  | 
  Ojuela mine, Mapimí, Municipio de Mapimí, Durango, Mexico | 
  
           
   | 
   | 
   | Milarite | 
  R070373 | 
  KCa2(Be2AlSi12)O30·H2O | 
  Royal Ontario Museum M28150 | 
  Guanajuato, Mexico | 
  
           
   | 
   | 
   | Milarite | 
  R070464 | 
  KCa2(Be2AlSi12)O30·H2O | 
  Michael Scott S105271 | 
  Rössing Mine, Arandis, Swakopmund District, Namibia | 
  
           
   | 
   | 
   | Milarite | 
  R120135 | 
  KCa2(Be2AlSi12)O30·H2O | 
  Luiz Menezes  | 
  Jaguaraçu, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Millerite | 
  R060898 | 
  NiS | 
  Royal Ontario Museum M3900 | 
  Orford, Quebec, Canada | 
  
           
   | 
   | 
   | Millerite | 
  R070323 | 
  NiS | 
  James Shigley  | 
  Keokuk area, Lee County, Iowa, USA | 
  
           
   | 
   | 
   | Millerite | 
  R080122 | 
  NiS | 
  Joan Abella i Creus  | 
  Eugenia mine, Bellmunt del Priorat, Tarragona, Catalonia, Spain | 
  
           
   | 
   | 
   | Mimetite | 
  R040123 | 
  Pb5(AsO4)3Cl | 
  University of Arizona Mineral Museum 13770 | 
  San Pedro Corralitos, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Mimetite | 
  R050007 | 
  Pb5(AsO4)3Cl | 
  Eugene Schlepp  | 
  Pingtouling, Guangdong, China | 
  
           
   | 
   | 
   | Mimetite | 
  R050527 | 
  Pb5(AsO4)3Cl | 
  University of Arizona Mineral Museum 10567 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Mimetite | 
  R130731 | 
  Pb5(AsO4)3Cl | 
  Bob Downs  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Mimetite | 
  R060920 | 
  Pb5(AsO4)3Cl | 
  Marcus Origlieri  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Mimetite | 
  R070309 | 
  Pb5(AsO4)3Cl | 
  Michael Scott S102788 | 
  Vrancice, Czechoslovakia | 
  
           
   | 
   | 
   | Mimetite-M | 
  R070146 | 
  Pb5(AsO4)3Cl | 
  Michael Scott S101900 | 
  Treue Freundschaft Mine, Johanngeorgenstadt, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Mimetite-M | 
  R070138 | 
  Pb5(AsO4)3Cl | 
  Michael Scott S103866 | 
  Eureka Hill Mine, Tintic District, East Tintic Mts, Juab County, Utah, USA | 
  
           
   | 
   | 
   | Minasgeraisite-(Y) | 
  R120134 | 
  CaBe2Y2Si2O10 | 
  Luiz Menezes  | 
  Jaguaraçu, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Minasragrite | 
  R130365 | 
  V4+O(SO4)·5H2O | 
  Tom Loomis  | 
  Minas Ragra mine, Pasco, Peru | 
  
           
   | 
   | 
   | Minium | 
  R050426 | 
  Pb2+2Pb4+O4 | 
  University of Arizona Mineral Museum 15293 | 
  El Chichi mine, Culiacan, Sinalog, Mexico | 
  
           
   | 
   | 
   | Minium | 
  R070508 | 
  Pb2+2Pb4+O4 | 
  James Shigley  | 
  Gila Bend, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Minium | 
  P001241 | 
  Pb2+2Pb4+O4 | 
  ScottLab P001241 | 
  Virtual | 
  
           
   | 
   | 
   | Minyulite | 
  R070151 | 
  KAl2(PO4)2F·4H2O | 
  James Shigley  | 
  Minyulo Well, Dandaragan, Western Australia, Australia | 
  
           
   | 
   | 
   | Minyulite | 
  R100072 | 
  KAl2(PO4)2F·4H2O | 
  Marcus Origlieri  | 
  Tom's quarry, Kapunda, South Australia, Australia | 
  
           
   | 
   | 
   | Miserite | 
  R060095 | 
  K1.5-x(Ca,Y,REE)5[Si6O15][Si2O7](OH,F)2·yH2O | 
  University of Arizona Mineral Museum 10141 | 
  Magnet Cove, Garland County, Arkansas, USA | 
  
           
   | 
   | 
   | Miserite | 
  R060393 | 
  K1.5-x(Ca,Y,REE)5[Si6O15][Si2O7](OH,F)2·yH2O | 
  Michael Scott S100086 | 
  Wilson Springs, Garland County, Arkansas, USA | 
  
           
   | 
   | 
   | Mitridatite | 
  R060367 | 
  Ca2Fe3+3O2(PO4)3·3H2O | 
  Michael Scott S100211 | 
  Palermo #1 mine, North Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Mixite | 
  R070503 | 
  Cu6Bi(AsO4)3(OH)6·3H2O | 
  Bob Jenkins  | 
  Hilarion mine, near Kamariza, Lavrion District, Greece | 
  
           
   | 
   | 
   | Moissanite | 
  R061083 | 
  SiC | 
  Los Alamos National Labs  | 
  Synthetic | 
  
           
   | 
   | 
   | Moissanite | 
  R110106 | 
  SiC | 
  Gemological Institute of America 10-12-2010-11 | 
  Synthetic | 
  
           
   | 
   | 
   | Moissanite | 
  R150016 | 
  SiC | 
  Rob Lavinsky  | 
  China | 
  
           
   | 
   | 
   | Molybdenite | 
  R050209 | 
  MoS2 | 
  Lloyd Twaites  | 
  Boss Mountain mine, Hendrix Lake, British Columbia, Canada | 
  
           
   | 
   | 
   | Molybdenite | 
  R060124 | 
  MoS2 | 
  University of Arizona Mineral Museum 11966 | 
  Crown Point mine, near Chelan, Washington, USA | 
  
           
   | 
   | 
   | Molybdenum | 
  R100216 | 
  Mo | 
  Mike Carducci, Climax Molybdenum Technology Center  | 
  Mining concentrate | 
  
           
   | 
   | 
   | Molybdite | 
  R100217 | 
  MoO3 | 
  Mike Carducci, Climax Molybdenum Technology Center  | 
  Mining concentrate | 
  
           
   | 
   | 
   | Molybdite | 
  R210024 | 
  MoO3 | 
  Bob Jenkins  | 
  Kateřina Coal Mine, Radvanice, Trutnov District, Hradec Králové Region, Czech Republic | 
  
           
   | 
   | 
   | Molybdofornacite | 
  R061057 | 
  CuPb2(MoO4)(AsO4)(OH) | 
  Bob Jenkins  | 
  Mina Dulcinea, Carreras Pintos, Inca de Oro, Atacama Region, Chile | 
  
           
   | 
   | 
   | Molybdofornacite | 
  R130755 | 
  CuPb2(MoO4)(AsO4)(OH) | 
  Bill Pinch  | 
  30 level South 110, Tsumeb, Namibia | 
  
           
   | 
   | 
   | Molybdofornacite | 
  R150121 | 
  CuPb2(MoO4)(AsO4)(OH) | 
  Bob Jenkins  | 
  San Pablo Mine, Inca de Oro, Chañaral Province, Chile | 
  
           
   | 
   | 
   | Molybdofornacite | 
  R150122 | 
  CuPb2(MoO4)(AsO4)(OH) | 
  Bob Jenkins  | 
  Dulcinea de Llampos Mine, Copiapó Province, Chile | 
  
           
   | 
   | 
   | Molybdomenite | 
  R140388 | 
  PbSe4+O3 | 
  Rock Currier  | 
  Virgen de Surumi mine, Pakajake Canyon, Chayanta Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | Molybdophyllite | 
  R070222 | 
  Pb8Mg9[Si10O28(OH)8O2(CO3)3]·H2O | 
  Michael Scott S100445 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Monazite-(Ce) | 
  R040106 | 
  Ce(PO4) | 
  University of Arizona Mineral Museum 5580 | 
  Angola | 
  
           
   | 
   | 
   | Monazite-(Ce) | 
  X050118 | 
  Ce(PO4) | 
  Caltech  | 
  unknown | 
  
           
   | 
   | 
   | Monazite-(Ce) | 
  R060925 | 
  Ce(PO4) | 
  Alfredo Petrov  | 
  Siglo Veinte mine, Llallagua, Bustillos Province, Potosi Department, Bolivia | 
  
           
   | 
   | 
   | Monazite-(Ce) | 
  R120081 | 
  Ce(PO4) | 
  Rudy Bolona  | 
  Hinman mine, Jefferson County, Colorado, USA | 
  
           
   | 
   | 
   | Monazite-(Ce) | 
  R120146 | 
  Ce(PO4) | 
  Ikram Mineralogy  | 
  Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan | 
  
           
   | 
   | 
   | Monazite-(La) | 
  R070263 | 
  La(PO4) | 
  Michael Scott S105570 | 
  Bear Lodge, Bear Creek placers, First Choice District (Garnet District), Granite County, Montana, USA | 
  
           
   | 
   | 
   | Monetite | 
  R070259 | 
  Ca(PO3OH) | 
  Michael Scott S101221 | 
  Paoha Island, Mono Lake, Mono County, California, USA | 
  
           
   | 
   | 
   | Montebrasite | 
  R040060 | 
  LiAl(PO4)(OH) | 
  University of Arizona Mineral Museum 5573 | 
  Oxford County, Maine, USA | 
  
           
   | 
   | 
   | Montebrasite | 
  R040062 | 
  LiAl(PO4)(OH) | 
  University of Arizona Mineral Museum 8239 | 
  Hebron, Maine, USA | 
  
           
   | 
   | 
   | Montebrasite | 
  R050500 | 
  LiAl(PO4)(OH) | 
  California Institute of Technology W-40033 | 
  Pala, San Diego County, California, USA | 
  
           
   | 
   | 
   | Montebrasite | 
  R060890 | 
  LiAl(PO4)(OH) | 
  Bob Jenkins  | 
  Mount Marie, Paris, Maine, USA | 
  
           
   | 
   | 
   | Monteregianite-(Y) | 
  R080109 | 
  KNa2YSi8O19·5H2O | 
  William W. Pinch  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Monteregianite-(Y) | 
  R130052 | 
  KNa2YSi8O19·5H2O | 
  Don Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Montgomeryite | 
  R070631 | 
  Ca4MgAl4(PO4)6(OH)4·12H2O | 
  Dakota Matrix Minerals  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Montgomeryite | 
  R080094 | 
  Ca4MgAl4(PO4)6(OH)4·12H2O | 
  Joan Abella i Creus  | 
  Turó de Montcada, Montcada i Reixac, Barcelona, Catalonia, Spain | 
  
           
   | 
   | 
   | Montgomeryite | 
  R140625 | 
  Ca4MgAl4(PO4)6(OH)4·12H2O | 
  Rock Currier  | 
  Near Milgun Station, Meekatharra Shire, Western Australia, Australia | 
  
           
   | 
   | 
   | Montgomeryite | 
  R140664 | 
  Ca4MgAl4(PO4)6(OH)4·12H2O | 
  Rock Currier  | 
  Foote Mineral Company mine, Kings Mountain, North Carolina, USA | 
  
           
   | 
   | 
   | Monticellite | 
  R040115 | 
  CaMg(SiO4) | 
  University of Arizona Mineral Museum 4337 | 
  Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Monticellite | 
  R100106 | 
  CaMg(SiO4) | 
  American Museum of Natural History 27907 | 
  Crestmore, Riverside County, California, USA | 
  
           
   | 
   | 
   | Monticellite | 
  R100107 | 
  CaMg(SiO4) | 
  American Museum of Natural History 31975 | 
  Crestmore, Riverside County, California, USA | 
  
           
   | 
   | 
   | Monticellite | 
  R100108 | 
  CaMg(SiO4) | 
  American Museum of Natural History 29740 | 
  Oka, Deux-montagnes County, Quebec, Canada | 
  
           
   | 
   | 
   | Montmorillonite | 
  R110052 | 
  (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 
  Ward's Natural Science Establishment, Inc. No. 11 | 
  Santa Rita, New Mexico, USA | 
  
           
   | 
   | 
   | Montmorillonite | 
  R110053 | 
  (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 
  Ward's Natural Science Establishment, Inc. No. 23 | 
  Chambers, Arizona, USA | 
  
           
   | 
   | 
   | Montroseite | 
  R060576 | 
  (V3+,Fe2+,V4+)O(OH) | 
  Michael Scott S100805 | 
  Number Mesa 5 mine, Temple Mountain, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Montroydite | 
  R070235 | 
  HgO | 
  Michael Scott S100156 | 
  Clear Creek claim, southern San Benito County, California, USA | 
  
           
   | 
   | 
   | Montroydite | 
  R140877 | 
  HgO | 
  Tom Loomis  | 
  Terlingua, Texas, USA | 
  
           
   | 
   | 
   | Mooreite | 
  R060089 | 
  Mg15(SO4)2(OH)26·8H2O | 
  University of Arizona Mineral Museum 9916 | 
  Sterling Hill, New Jersey, USA | 
  
           
   | 
   | 
   | Moorhouseite | 
  R130745 | 
  Co(SO4)·6H2O | 
  Donald Doell  | 
  Bou Azer, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco | 
  
           
   | 
   | 
   | Mopungite | 
  R140229 | 
  NaSb5+(OH)6 | 
  Rock Currier  | 
  Desert Peak, Nevada, USA | 
  
           
   | 
   | 
   | Mopungite | 
  R220042 | 
  NaSb5+(OH)6 | 
  Erica Bittarello  | 
  Pereta mine, Tuscany, Italy | 
  
           
   | 
   | 
   | Moraesite | 
  R060876 | 
  Be2(PO4)(OH)·4H2O | 
  Bob Jenkins  | 
  Galileia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Moraesite | 
  R070480 | 
  Be2(PO4)(OH)·4H2O | 
  Bob Jenkins  | 
  Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Mordenite | 
  R061118 | 
  (Na2,Ca,K2)4(Al8Si40)O96·28H2O | 
  Michael Scott S103493 | 
  Chipman's Brook, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Mordenite | 
  R070524 | 
  (Na2,Ca,K2)4(Al8Si40)O96·28H2O | 
  James Shigley  | 
  Calapooya River, near Dollar, Linn County, Oregon, USA | 
  
           
   | 
   | 
   | Morinite | 
  R070529 | 
  NaCa2Al2(PO4)2(OH)F4·2H2O | 
  James Shigley  | 
  Hugo mine, Keystone, Pennington County, South Dakota, USA | 
  
           
   | 
   | 
   | Mosandrite-(Ce) | 
  R100097 | 
  (Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2 | 
  Henry Barwood  | 
  Granite Mountain #2 Quarry, Arkansas, USA | 
  
           
   | 
   | 
   | Mosesite | 
  R180030 | 
  (Hg2N)Cl | 
  Tom Loomis  | 
  Terlingua, Brewster Co., Texas, USA | 
  
           
   | 
   | 
   | Mottramite | 
  R050517 | 
  PbCu(VO4)(OH) | 
  University of Arizona Mineral Museum 10865 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Mottramite | 
  R050521 | 
  PbCu(VO4)(OH) | 
  University of Arizona Mineral Museum 11083 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Mottramite | 
  R120112 | 
  PbCu(VO4)(OH) | 
  Joe Ruiz  | 
  Copperopolis, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Motukoreaite | 
  R070337 | 
  Mg6Al3(OH)18[Na(H2O)6](SO4)2·6H2O | 
  Michael Scott S100081 | 
  Motukorea (Brown's Island), near Auckland, New Zealand | 
  
           
   | 
   | 
   | Mozartite | 
  R070265 | 
  CaMn3+(SiO4)(OH) | 
  Michael Scott S106023 | 
  Wessels mine, Kalahari Manganese Field, South Africa | 
  
           
   | 
   | 
   | Mozartite | 
  R180002 | 
  CaMn3+(SiO4)(OH) | 
  Ludi von Bezing  | 
  N'Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Muirite | 
  R150098 | 
  Ba10Ca2Mn2+TiSi10O30(OH,Cl,F)10 | 
  James Shigley  | 
  Esquire No. 7 mine, Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Muirite | 
  R120160 | 
  Ba10Ca2Mn2+TiSi10O30(OH,Cl,F)10 | 
  Donald Doell  | 
  Gun Claim, MacMillian Pass, Itsy Mts, Watson Lake Mining District, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Muirite | 
  R140248 | 
  Ba10Ca2Mn2+TiSi10O30(OH,Cl,F)10 | 
  Rock Currier  | 
  Esquire No. 7 Claim, Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Mullite | 
  R141101 | 
  Al4+2xSi2-2xO10-x (x ≈ 0.4) | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Mullite | 
  R141103 | 
  Al4+2xSi2-2xO10-x (x ≈ 0.4) | 
  Ch. and H. Schäfer  | 
  Weinberg, Nickenich, Eifel, Germany | 
  
           
   | 
   | 
   | Mullite | 
  R150147 | 
  Al4+2xSi2-2xO10-x (x ≈ 0.4) | 
  Nicolas Bost, Portion of a sample from the Musée de Minéralogie MINES Paristech, Paris, France, #  | 
  Northwest of Ormsaig, Ross of Mull, Scotland | 
  
           
   | 
   | 
   | Munakataite | 
  R110005 | 
  Pb2Cu2(Se4+O3)(SO4)(OH)4 | 
  Marcus Origlieri  | 
  Tonopah-Belmont mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Munakataite | 
  R110006 | 
  Pb2Cu2(Se4+O3)(SO4)(OH)4 | 
  Marcus Origlieri  | 
  Tonopah-Belmont mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Munakataite | 
  R150128 | 
  Pb2Cu2(Se4+O3)(SO4)(OH)4 | 
  Shields Flynn  | 
  Tsumeb mine, Tsumeb, Namibia | 
  
           
   | 
   | 
   | Murdochite | 
  R110122 | 
  Cu12Pb2O15Cl2 | 
  Rob Lavinsky  | 
  Mapimi, Mexico | 
  
           
   | 
   | 
   | Murdochite | 
  R180001 | 
  Cu12Pb2O15Cl2 | 
  UA Mineral Museum 5279 | 
  Mammoth mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Murmanite | 
  R060886 | 
  Na2Ti2Na2Ti2(Si2O7)2O4(H2O)4 | 
  Bob Jenkins  | 
  Lovozero Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Murmanite | 
  R110202 | 
  Na2Ti2Na2Ti2(Si2O7)2O4(H2O)4 | 
  Donald Doell  | 
  Kvanefjeld Mt., Kuannersuit plateau, Ilimaussaq complex, Narsaq, Kitaa Province, Greenland | 
  
           
   | 
   | 
   | Murphyite | 
  R210011 | 
  Pb(Te6+O4) | 
  Bruce Murphy  | 
  Grand Central mine, Tombstone, Arizona, USA | 
  
           
   | 
   | 
   | Muscovite | 
  R040104 | 
  KAl2(Si3Al)O10(OH)2 | 
  University of Arizona Mineral Museum 8520 | 
  unknown | 
  
           
   | 
   | 
   | Muscovite | 
  R040108 | 
  KAl2(Si3Al)O10(OH)2 | 
  University of Arizona Mineral Museum 9528 | 
  USSR | 
  
           
   | 
   | 
   | Muscovite | 
  R040124 | 
  KAl2(Si3Al)O10(OH)2 | 
  Bob Downs  | 
  Garnet Hill, Pennsylvania, USA | 
  
           
   | 
   | 
   | Muscovite | 
  R050080 | 
  KAl2(Si3Al)O10(OH)2 | 
  Rock Currier  | 
  Brazil | 
  
           
   | 
   | 
   | Muscovite | 
  R050188 | 
  KAl2(Si3Al)O10(OH)2 | 
  Dave Bunk Minerals  | 
  Sapinero, near Blue Mesa Reservoir, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Muscovite | 
  R050198 | 
  KAl2(Si3Al)O10(OH)2 | 
  University of Arizona Mineral Museum 8433 | 
  California, USA | 
  
           
   | 
   | 
   | Muscovite | 
  X050119 | 
  KAl2(Si3Al)O10(OH)2 | 
  Caltech  | 
  Blue Lady mine, Chihuahua Valley, San Diego County, California, USA | 
  
           
   | 
   | 
   | Muscovite | 
  R060182 | 
  KAl2(Si3Al)O10(OH)2 | 
  Lloyd Twaites  | 
  Reliance mine, Mica Mountain, Tete Juane Cache, British Columbia, Canada | 
  
           
   | 
   | 
   | Muscovite | 
  R060266 | 
  KAl2(Si3Al)O10(OH)2 | 
  Michael Scott S100304 | 
  Bolet, Vasterbotten, Sweden | 
  
           
   | 
   | 
   | Muscovite | 
  R061120 | 
  KAl2(Si3Al)O10(OH)2 | 
  Michael Scott S103197 | 
  Aracuai City,  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Muscovite | 
  R100147 | 
  KAl2(Si3Al)O10(OH)2 | 
  Mineralogical Museum, Harvard University 103128 | 
  Blue Mountain Quarry, Methuen Township, Petersborough County, Ontario, Canada | 
  
           
   | 
   | 
   | Mushistonite | 
  R060153 | 
  Cu2+Sn4+(OH)6 | 
  Marcus Origlieri  | 
  Ping Wu, Xuebaoding, Sichuan, China | 
  
           
   | 
   | 
   | Nabokoite | 
  R070062 | 
  Cu7Te4+O4(SO4)5·KCl | 
  Michael Scott S105083 | 
  Tolbachik Volcano, Kamchatka, Russia | 
  
           
   | 
   | 
   | Nacrite | 
  R100066 | 
  Al2Si2O5(OH)4 | 
  Bob Jenkins  | 
  Geisberg, Schweighausen, Black Forest, Germany | 
  
           
   | 
   | 
   | Nadorite | 
  R050523 | 
  PbSb3+O2Cl | 
  University of Arizona Mineral Museum 3045 | 
  Constantine, Algeria | 
  
           
   | 
   | 
   | Nadorite | 
  R050525 | 
  PbSb3+O2Cl | 
  University of Arizona Mineral Museum 3046 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Nagelschmidtite | 
  R070032 | 
  Ca7(SiO4)2(PO4)2 | 
  Michael Scott S105080 | 
  Hatrurium Formation, Negev Desert, southern Israel | 
  
           
   | 
   | 
   | Nagyágite | 
  R060723 | 
  [Pb3(Pb,Sb)3S6](Au,Te)3 | 
  Bob Jenkins  | 
  Nagyag, Romania | 
  
           
   | 
   | 
   | Nagyágite | 
  R060865 | 
  [Pb3(Pb,Sb)3S6](Au,Te)3 | 
  Michael Scott S100867 | 
  Nagyog, Transylvania | 
  
           
   | 
   | 
   | Nahcolite | 
  R070237 | 
  NaH(CO3) | 
  Michael Scott S105046 | 
  Bureau of Mines Oil Shale Mine, East Rifle Creek area, Garfield County, Colorado, USA | 
  
           
   | 
   | 
   | Nakauriite | 
  R060842 | 
  Cu8(SO4)4(CO3)(OH)6·48H2O | 
  Bob Jenkins  | 
  Gabbs, Nevada, USA | 
  
           
   | 
   | 
   | Nakauriite | 
  R060976 | 
  Cu8(SO4)4(CO3)(OH)6·48H2O | 
  Michael Scott S101440 | 
  Nakauri mine, Aichi Prefecture, Japan | 
  
           
   | 
   | 
   | Nalivkinite | 
  R070219 | 
  Li2NaFe2+7Ti2(Si4O12)2O2(OH)4F(H2O)2 | 
  Michael Scott S100429 | 
  Dara-i-Pioz (Darai-Piez) Glacier, Alayskiy (Alai; Alay) Range, South Tien-Shan Mts, Garm region, Districts of the Republican Subordination, Tajikistan | 
  
           
   | 
   | 
   | Namansilite | 
  R070006 | 
  NaMn3+Si2O6 | 
  Marcus Origlieri  | 
  Hoskins mine, near Grenfell, New South Wales, Australia | 
  
           
   | 
   | 
   | Nambulite | 
  R060616 | 
  LiMn2+4Si5O14(OH) | 
  Michael Scott S100824 | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Namibite | 
  R060782 | 
  Cu(BiO)2(VO4)(OH) | 
  Michael Scott S101297 | 
  Khorixas, Darmaraland, Namibia | 
  
           
   | 
   | 
   | Namibite | 
  R100182 | 
  Cu(BiO)2(VO4)(OH) | 
  Joe Ruiz  | 
  Copperopolis, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Namuwite | 
  R130173 | 
  Zn4(SO4)(OH)6·4H2O | 
  Donald Doell (small piece), Rock Currier (large piece)  | 
  Trentini mine, Schio, Vincenza, Italy | 
  
           
   | 
   | 
   | Narsarsukite | 
  R060203 | 
  Na2(Ti,Fe3+)Si4(O,F)11 | 
  Royal Ontario Museum M41218 | 
  Poudrette Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Narsarsukite | 
  R060217 | 
  Na2(Ti,Fe3+)Si4(O,F)11 | 
  Royal Ontario Museum M31995 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Natanite | 
  R100016 | 
  Fe2+Sn4+(OH)6 | 
  William Pinch  | 
  Level 10 silicate body, El Potosi mine, Santa Eulalia, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Natroalunite | 
  R060406 | 
  NaAl3(SO4)2(OH)6 | 
  American Museum of Natural History 28347 | 
  Sugar Loaf Butte, Arizona, USA | 
  
           
   | 
   | 
   | Natroboltwoodite | 
  R060880 | 
  Na(UO2)(SiO3OH)·H2O | 
  Michael Scott S100960 | 
  Alluaiv Mountain, Lovozero, Russia | 
  
           
   | 
   | 
   | Natrochalcite | 
  R050152 | 
  NaCu2(SO4)2(OH)·H2O | 
  Jim McGlasson  | 
  Fortuna mine, Baquedano, Chile | 
  
           
   | 
   | 
   | Natrodufrénite | 
  R070599 | 
  NaFe2+Fe3+5(PO4)4(OH)6·2H2O | 
  James Shigley  | 
  Hout Bay, Cape of Good Hope Province, South Africa | 
  
           
   | 
   | 
   | Natrojarosite | 
  R050471 | 
  NaFe3+3(SO4)2(OH)6 | 
  Marcus Origlieri  | 
  Bristol mine, Pioche, Lincoln County, Nevada, USA | 
  
           
   | 
   | 
   | Natrojarosite | 
  R050289 | 
  NaFe3+3(SO4)2(OH)6 | 
  Marcus Origlieri  | 
  Bristol mine, Pioche, Lincoln County, Nevada, USA | 
  
           
   | 
   | 
   | Natrojarosite | 
  R080062 | 
  NaFe3+3(SO4)2(OH)6 | 
  Luiz Menezes  | 
  Lavra  do Tomé, Galiléja, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Natrolemoynite | 
  R060958 | 
  Na4Zr2Si10O26·9H2O | 
  Michael Scott S101452 | 
  Mont St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Natrolite | 
  R040102 | 
  Na2(Si3Al2)O10·2H2O | 
  University of Arizona Mineral Museum 12862 | 
  Ross' Quarry, Northland, New Zealand | 
  
           
   | 
   | 
   | Natrolite | 
  R040112 | 
  Na2(Si3Al2)O10·2H2O | 
  National Museums of Canada 061565 | 
  Ice River Alkaline Complex, Moose Creek Valley, Yoho National Park, British Columbia, Canada | 
  
           
   | 
   | 
   | Natrolite | 
  R040022 | 
  Na2(Si3Al2)O10·2H2O | 
  University of Arizona Mineral Museum 2108 | 
  Patterson, Passaic County, New Jersey, USA | 
  
           
   | 
   | 
   | Natrolite | 
  R050589 | 
  Na2(Si3Al2)O10·2H2O | 
  Bob Downs  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Natrolite | 
  R060561 | 
  Na2(Si3Al2)O10·2H2O | 
  Gemological Institute of America 13 | 
  California, USA | 
  
           
   | 
   | 
   | Natrolite | 
  R120124 | 
  Na2(Si3Al2)O10·2H2O | 
  Marcus Origlieri  | 
  Sagasen, Telemark, Norway | 
  
           
   | 
   | 
   | Natropalermoite | 
  R130092 | 
  Na2SrAl4(PO4)4(OH)4 | 
  Benjamin N. Schumer  | 
  Palermo No. 1 mine, Groton, New Hampshire, USA | 
  
           
   | 
   | 
   | Natrosilite | 
  R060855 | 
  Na2Si2O5 | 
  Michael Scott S100987 | 
  Kedgkverpahk Mountain, Kovoeko Massif, Kola, Russia | 
  
           
   | 
   | 
   | Naujakasite | 
  R060975 | 
  Na6Fe2+Al4Si8O26 | 
  Michael Scott S101487 | 
  Lille Elv Plateau, Kangerdluarssuk, Ilimaussaq intrusion, Greenland | 
  
           
   | 
   | 
   | Naumannite | 
  R070505 | 
  Ag2Se | 
  James Shigley  | 
  DeLamar mine, Silver City District, Owyhee County, Idaho, USA | 
  
           
   | 
   | 
   | Nchwaningite | 
  R140275 | 
  Mn2SiO3(OH)2·H2O | 
  Rock Currier  | 
  N'Chwaning mine, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Nealite | 
  R060774 | 
  Pb4Fe(AsO3)2Cl4·2H2O | 
  Michael Scott S101105 | 
  Oxygon, Laurion, Greece | 
  
           
   | 
   | 
   | Neighborite | 
  R080108 | 
  NaMgF3 | 
  William W. Pinch  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Nekoite | 
  R070475 | 
  Ca3Si6O15·7H2O | 
  Bob Jenkins  | 
  LaCotita mine, Inca de Oro, Chile | 
  
           
   | 
   | 
   | Nelenite | 
  R120148 | 
  Mn2+16As3+3Si12O36(OH)17 | 
  James Zigras  | 
  Huanggang mine, Inner Mongolia, China | 
  
           
   | 
   | 
   | Nelenite | 
  R120150 | 
  Mn2+16As3+3Si12O36(OH)17 | 
  Rock Currier  | 
  Trotter mine, Franklin, New Jersey, USA | 
  
           
   | 
   | 
   | Neltnerite | 
  R060726 | 
  CaMn3+6O8(SiO4) | 
  Bob Jenkins  | 
  Manganese Creek, Keweenaw County, Michigan, USA | 
  
           
   | 
   | 
   | Nenadkevichite | 
  R070610 | 
  (Na,◻)8Nb4(Si4O12)2(O,OH)4·8H2O | 
  James Shigley  | 
  Desourdy Quarry, Mount Saint Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Nepheline | 
  R040025 | 
  Na3K(Al4Si4O16) | 
  University of Arizona Mineral Museum 6304 | 
  Bancroft, Ontario, Canada | 
  
           
   | 
   | 
   | Nepheline | 
  R060581 | 
  Na3K(Al4Si4O16) | 
  Michael Scott S100810 | 
  Capo di Bova, Via Appia Antica, Rome, Italy | 
  
           
   | 
   | 
   | Nepheline | 
  R090059 | 
  Na3K(Al4Si4O16) | 
  Dudley Blauwet  | 
  Lajuar Madan, Sar-e-Sang District, Badakhshan, Afghanistan | 
  
           
   | 
   | 
   | Népouite | 
  R120106 | 
  Ni3Si2O5(OH)4 | 
  Bill & Sandy Bowman  | 
  Nepoui mine, New Caledonia | 
  
           
   | 
   | 
   | Neptunite | 
  R060628 | 
  KNa2LiFe2+2Ti2Si8O24 | 
  Gemological Institute of America 02 | 
  California, USA | 
  
           
   | 
   | 
   | Neptunite | 
  R060746 | 
  KNa2LiFe2+2Ti2Si8O24 | 
  California Institute of Technology 12952 | 
  San Benito Mountains, San Benito County, California, USA | 
  
           
   | 
   | 
   | Nesquehonite | 
  R050639 | 
  Mg(CO3)·3H2O | 
  University of Arizona Mineral Museum 2903 | 
  Nesquehoning, Pennsylvania, USA | 
  
           
   | 
   | 
   | Nesquehonite | 
  R070764 | 
  Mg(CO3)·3H2O | 
  Hexiong Yang  | 
  Tucson, Arizona, USA from the interior of a rotting saguaro cactus | 
  
           
   | 
   | 
   | Nevadaite | 
  R060775 | 
  (Cu2+,◻,Al,V3+)6Al8(PO4)8F8(OH)2·22H2O | 
  Michael Scott S101111 | 
  Gold Quarry mine, Eueka County, Nevada, USA | 
  
           
   | 
   | 
   | Newberyite | 
  R050513 | 
  Mg(PO3OH)·3H2O | 
  American Museum of Natural History 41793 | 
  Australia | 
  
           
   | 
   | 
   | Neyite | 
  R100116 | 
  Ag2Cu6Pb25Bi26S68 | 
  Robert Woodside  | 
  Southwest end of pit, British Columbia Molybdenum mine, Kitsault, British Columbia, Canada | 
  
           
   | 
   | 
   | Nickelalumite | 
  R060573 | 
  NiAl4(SO4)(OH)12(H2O)3 | 
  Michael Scott S100802 | 
  Jomde mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Nickelhexahydrite | 
  R060596 | 
  Ni(SO4)·6H2O | 
  Michael Scott S100797 | 
  Gorner Glacier, Monte Rosa Massif, Zermatt, Matt Valley, Wallis, Switzerland | 
  
           
   | 
   | 
   | Nickeline | 
  R060121 | 
  NiAs | 
  University of Arizona Mineral Museum 3636 | 
  Yellowknife, Great Slave Lake, Canada | 
  
           
   | 
   | 
   | Nickeline | 
  R060906 | 
  NiAs | 
  Royal Ontario Museum M8518 | 
  Moose Horn mine, Timiskaming district, Ontario, Canada | 
  
           
   | 
   | 
   | Nickelphosphide | 
  R070134 | 
  Ni3P | 
  Michael Scott S105082 | 
  northwest Africa 1054 meteorite, Morocco | 
  
           
   | 
   | 
   | Nickelskutterudite | 
  R061007 | 
  (Ni,Co,Fe)As3 | 
  Michael Scott S101444 | 
  Hasserode, Harz, Germany | 
  
           
   | 
   | 
   | Nickelskutterudite | 
  R100194 | 
  (Ni,Co,Fe)As3 | 
  University of Arizona Mineral Museum 1197 | 
  Schneeberg, Saxony, Germany | 
  
           
   | 
   | 
   | Nickelskutterudite | 
  R100196 | 
  (Ni,Co,Fe)As3 | 
  Ron Gibbs  | 
  Alhambra mine, Burro Mountains, Grant County, New Mexico, USA | 
  
           
   | 
   | 
   | Nickeltalmessite | 
  R090023 | 
  Ca2Ni(AsO4)2·2H2O | 
  Wiiliam W. Pinch  | 
  Ait Ahmane, Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Nierite | 
  R120128 | 
  Si3N4 | 
  UBE America Inc.  | 
  Synthetic | 
  
           
   | 
   | 
   | Nifontovite | 
  R060685 | 
  Ca3[BO(OH)2]6·2H2O | 
  Michael Scott S100791 | 
  Fuka mine, Okayama Prefecture, Japan | 
  
           
   | 
   | 
   | Nifontovite | 
  R080138 | 
  Ca3[BO(OH)2]6·2H2O | 
  Marcus Origlieri  | 
  Charcas, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Niksergievite | 
  R060894 | 
  Ba2Al3(Si,Al)4O10(CO3)(OH)6·nH2O | 
  Michael Scott S100967 | 
  Tekeli mine, Karatau, Kazakhstan | 
  
           
   | 
   | 
   | Nioboaeschynite-(Ce) | 
  R110056 | 
  (Ce,Ca)(Nb,Ti)2(O,OH)6 | 
  Don Doell  | 
  Upper Fir carbonatite, Kamloops mining division, British Columbia, Canada | 
  
           
   | 
   | 
   | Nioboaeschynite-(Y) | 
  R110140 | 
  (Y,REE,Ca,Th,Fe)(Nb,Ti,Ta)2(O,OH)6 | 
  Donald M Doell  | 
  Quadeville, Lyndoch Township, Renfrew County, Ontario, Canada | 
  
           
   | 
   | 
   | Niobophyllite | 
  R110048 | 
  K2NaFe2+7(Nb,Ti)2(Si4O12)2O2(OH)4(O,F) | 
  Donald M Doell  | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Niocalite | 
  R070150 | 
  Ca7Nb(Si2O7)2O3F | 
  James Shigley  | 
  MolyCorp Trench, Oka, Deux-Montagnes County, Quebec, Canada | 
  
           
   | 
   | 
   | Nissonite | 
  R100068 | 
  Cu2Mg2(PO4)2(OH)2·5H2O | 
  Bob Jenkins  | 
  Boss mine, Goodsprings district, Clark County, Nevada, USA | 
  
           
   | 
   | 
   | Niter | 
  R090001 | 
  K(NO3) | 
  James Shigley  | 
  Searcy County, Arkansas, USA | 
  
           
   | 
   | 
   | Nitratine | 
  R050394 | 
  Na(NO3) | 
  Mark Candee  | 
  Tarapaca, Chile | 
  
           
   | 
   | 
   | Nitratine | 
  R050658 | 
  Na(NO3) | 
  University of Arizona Mineral Museum 2492 | 
  Peru | 
  
           
   | 
   | 
   | Nitrobarite | 
  R060622 | 
  Ba(NO3)2 | 
  Michael Scott S100831 | 
  Hüttenberg, Kärnten, Austria | 
  
           
   | 
   | 
   | Nitrocalcite | 
  R120047 | 
  Ca(NO3)2·4H2O | 
  Bob Jenkins  | 
  Christmas mine, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Nobleite | 
  R060847 | 
  CaB6O9(OH)2·3H2O | 
  Michael Scott S100900 | 
  Hard Scramble claim, Death Valley USA | 
  
           
   | 
   | 
   | Nontronite | 
  X050120 | 
  Na0.3Fe3+2(Si,Al)4O10(OH)2·nH2O | 
  CIT H-33a  | 
  Garfield, near Spokane, Washington | 
  
           
   | 
   | 
   | Nontronite | 
  X050121 | 
  Na0.3Fe3+2(Si,Al)4O10(OH)2·nH2O | 
  CIT H-33b  | 
  Mineto, near Spokane, Washington, USA | 
  
           
   | 
   | 
   | Nontronite | 
  R070286 | 
  Na0.3Fe3+2(Si,Al)4O10(OH)2·nH2O | 
  Michael Scott S103144 | 
  Andreasberg, Sachsen, Germany | 
  
           
   | 
   | 
   | Norbergite | 
  R050280 | 
  Mg3(SiO4)F2 | 
  Marcus Origlieri  | 
  Sterling mine, Ogdensburg, New Jersey, USA | 
  
           
   | 
   | 
   | Nordenskiöldine | 
  R061079 | 
  CaSn(BO3)2 | 
  Lloyd Twaites LT 1432 | 
  MW Claim, Cassiar Mountains, Yukon, Canada | 
  
           
   | 
   | 
   | Nordenskiöldine | 
  R130017 | 
  CaSn(BO3)2 | 
  Robert Lavinsky  | 
  Brooks Mountain, Seward Peninsula, Nome Borough, Alaska, USA | 
  
           
   | 
   | 
   | Nordite-(Ce) | 
  R130530 | 
  Na3SrCeZnSi6O17 | 
  Rock Currier  | 
  Karnasurt Mt., Lovosero Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Nordite-(La) | 
  R140310 | 
  Na3SrLaZnSi6O17 | 
  Rock Currier  | 
  Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Nordstrandite | 
  R050592 | 
  Al(OH)3 | 
  Marcus Origlieri  | 
  Cerro Sapo, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Nordstrandite | 
  R130093 | 
  Al(OH)3 | 
  Donald Doell  | 
  Mont St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Normandite | 
  R120066 | 
  Na2Ca2(Mn,Fe)2(Ti,Nb,Zr)2(Si2O7)2O2F2 | 
  Donald Doell  | 
  Partomchorr Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Norrishite | 
  R060368 | 
  KLiMn3+2Si4O10O2 | 
  Michael Scott S100262 | 
  Hoskins mine, Grenfell, New South Wales, Australia | 
  
           
   | 
   | 
   | Norrishite | 
  R130089 | 
  KLiMn3+2Si4O10O2 | 
  Marcus Origlieri  | 
  Wessels mine, Kalahari Manganese Field, South Africa | 
  
           
   | 
   | 
   | Northupite | 
  R060156 | 
  Na3Mg(CO3)2Cl | 
  Marcus Origlieri  | 
  Searles Lake, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Nosean | 
  R050422 | 
  Na8(Si6Al6)O24(SO4)·H2O | 
  Marcus Origlieri  | 
  Laacher See, Mendig Area, Eifel Mountains, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Nuffieldite | 
  R100113 | 
  Cu1.4Pb2.4Bi2.4Sb0.2S7 | 
  Robert Woodside  | 
  British Columbia Molybdenum mine, Kitsault, British Columbia, Canada | 
  
           
   | 
   | 
   | Nuffieldite | 
  R110088 | 
  Cu1.4Pb2.4Bi2.4Sb0.2S7 | 
  Mark N. Feinglos   | 
  Crabtree quarry, Wake County, North Carolina, USA | 
  
           
   | 
   | 
   | Obradovicite-KCu | 
  R100015 | 
  [K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] | 
  Colorado School of Mines 86.496 | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Obradovicite-KCu | 
  R110015 | 
  [K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] | 
  William W Pinch  | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Offretite | 
  R060767 | 
  KCaMg(Si13Al5)O36·15H2O | 
  Michael Scott S101247 | 
  Vinarice, Kladno, Czech Republic | 
  
           
   | 
   | 
   | Okenite | 
  R070602 | 
  Ca10Si18O46·18H2O | 
  James Shigley  | 
  Poona, Maharashtra, India | 
  
           
   | 
   | 
   | Olenite | 
  R061133 | 
  NaAl3Al6(Si6O18)(BO3)3O3(OH) | 
  Michael Scott S104229 | 
  Uvil'dy, Urals, Siberia, Russia | 
  
           
   | 
   | 
   | Olenite | 
  R120012 | 
  NaAl3Al6(Si6O18)(BO3)3O3(OH) | 
  Marcus Origlieri  | 
  Curiglia, Val Veddasca, Varese, Italy | 
  
           
   | 
   | 
   | Oligoclase | 
  X050122 | 
  (Na,Ca)(Si,Al)4O8 | 
  G.R. Rossman 680 | 
  Kenya | 
  
           
   | 
   | 
   | Olivenite | 
  R040181 | 
  Cu2(AsO4)(OH) | 
  University of Arizona Mineral Museum 3142 | 
  Majuba Hill, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Olivenite | 
  R050532 | 
  Cu2(AsO4)(OH) | 
  University of Arizona Mineral Museum 4809 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Olmiite | 
  R050144 | 
  CaMn[SiO3(OH)](OH) | 
  Rock Currier  | 
  N'Chwaning II mine, Kuruman, South Africa | 
  
           
   | 
   | 
   | Olmiite | 
  R050177 | 
  CaMn[SiO3(OH)](OH) | 
  Marcus Origlieri  | 
  N'Chwaning II mine, Kuruman, South Africa | 
  
           
   | 
   | 
   | Olsacherite | 
  R140741 | 
  Pb2(Se6+O4)(SO4) | 
  Rock Currier  | 
  Virgen De Surumi mine, Pakajake Canyon, Chayanta Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | Olsacherite | 
  R150099 | 
  Pb2(Se6+O4)(SO4) | 
  Thomas A. Loomis  | 
  El Dragón mine, Antonio Quijarro Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | Olshanskyite | 
  R150028 | 
  Ca2[B3O3(OH)6]OH·3H2O | 
  Renato and Adriana Pagano  | 
  Shijangshan mine, Jipeng, Chifeng, Inner Mongolia, China | 
  
           
   | 
   | 
   | Olshanskyite | 
  R170043 | 
  Ca2[B3O3(OH)6]OH·3H2O | 
  Mineral Zone  | 
  Shijiangshan mine, Linxi, Chifeng, Inner Mongolia, China | 
  
           
   | 
   | 
   | Omphacite | 
  R061129 | 
  (Ca,Na)(Mg,Fe,Al)Si2O6 | 
  Michael Scott S104252 | 
  near Occidental, Sonoma County, California, USA | 
  
           
   | 
   | 
   | Omphacite | 
  R110038 | 
  (Ca,Na)(Mg,Fe,Al)Si2O6 | 
  William W Pinch  | 
  Kefalos Hill, Skotini Bay, Galissas, Syros Island, Aegean Sea, Greece | 
  
           
   | 
   | 
   | Ondrušite | 
  R141029 | 
  CaCu4(AsO4)2(AsO3OH)2·10H2O | 
  William W. Pinch  | 
  Svornost mine, Jáchymov, Krušné Hory Mts, Karlovy Vary, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Oneillite | 
  R110184 | 
  Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 | 
  Donald Doell  | 
  Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Opal | 
  R060652 | 
  SiO2·nH2O | 
  Gemological Institute of America 23128 | 
  Ethiopia | 
  
           
   | 
   | 
   | Opal | 
  R060653 | 
  SiO2·nH2O | 
  Gemological Institute of America 4021A | 
  Brazil | 
  
           
   | 
   | 
   | Opal | 
  R060651 | 
  SiO2·nH2O | 
  Gemological Institute of America 4570 | 
  Mexico | 
  
           
   | 
   | 
   | Opal | 
  R060650 | 
  SiO2·nH2O | 
  Gemological Institute of America 6029 | 
  Idaho, USA | 
  
           
   | 
   | 
   | Opal | 
  X070002 | 
  SiO2·nH2O | 
  Taka Yamanaka  | 
  Synthetic | 
  
           
   | 
   | 
   | Opal | 
  X070003 | 
  SiO2·nH2O | 
  Taka Yamanaka  | 
  Synthetic | 
  
           
   | 
   | 
   | Opal | 
  R070627 | 
  SiO2·nH2O | 
  www.multicolour.com  | 
  Madagascar | 
  
           
   | 
   | 
   | Opal | 
  X080017 | 
  SiO2·nH2O | 
  Gemological Institute of America 14329 | 
  Synthetic | 
  
           
   | 
   | 
   | Opal | 
  X080018 | 
  SiO2·nH2O | 
  Gemological Institute of America 21794 | 
  Synthetic | 
  
           
   | 
   | 
   | Opal | 
  R100149 | 
  SiO2·nH2O | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Opal | 
  R110107 | 
  SiO2·nH2O | 
  Gemological Institute of America 10-12-2010-12 | 
  Synthetic | 
  
           
   | 
   | 
   | Orickite | 
  R070739 | 
  CuFeS2·nH2O | 
  Michael Scott S104242 | 
  Abundancia vein, Emma Louise Gold mine, El Guanaco, Taltal Province, Antofagasta, Chile | 
  
           
   | 
   | 
   | Orientite | 
  R060936 | 
  Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O | 
  Michael Scott S101287 | 
  Cerchiara mine, Liguria, Italy | 
  
           
   | 
   | 
   | Orlandiite | 
  R100122 | 
  Pb3Cl4(Se4+O3)·H2O | 
  William W. Pinch  | 
  Baccu Locci mine, Villaputen, Sardinia | 
  
           
   | 
   | 
   | Orpiment | 
  R060105 | 
  As2S3 | 
  University of Arizona Mineral Museum 14058 | 
  Mercur, Utah, USA | 
  
           
   | 
   | 
   | Orpiment | 
  R060116 | 
  As2S3 | 
  University of Arizona Mineral Museum 11828 | 
  Quiruvilca, Peru | 
  
           
   | 
   | 
   | Orthoclase | 
  R040055 | 
  K(AlSi3O8) | 
  Bob Downs  | 
  Madagascar | 
  
           
   | 
   | 
   | Orthoclase | 
  X050123 | 
  K(AlSi3O8) | 
  G.R. Rossman 146 | 
  Itrongahy, Madagascar | 
  
           
   | 
   | 
   | Orthoclase | 
  R050185 | 
  K(AlSi3O8) | 
  Bob Downs  | 
  Silica Bell Property, west of Hope, British Columbia, Canada | 
  
           
   | 
   | 
   | Orthoclase | 
  X050124 | 
  K(AlSi3O8) | 
  RD Shannon, 62047- 48 | 
  Madagascar | 
  
           
   | 
   | 
   | Orthoclase | 
  X050125 | 
  K(AlSi3O8) | 
  G.R. Rossman 78 | 
  Madagascar | 
  
           
   | 
   | 
   | Orthoclase | 
  X050126 | 
  K(AlSi3O8) | 
  G.R. Rossman 26 | 
  Madagascar | 
  
           
   | 
   | 
   | Orthoclase | 
  R050367 | 
  K(AlSi3O8) | 
  Marcus Origlieri  | 
  Pazunseik, Mandalay Division, Burma | 
  
           
   | 
   | 
   | Orthoclase | 
  R060077 | 
  K(AlSi3O8) | 
  Marcus Origlieri  | 
  pegmatite near Minh Tien, 15 km south of Luc Yen, Vietnam | 
  
           
   | 
   | 
   | Orthoclase | 
  R070001 | 
  K(AlSi3O8) | 
  Michael Scott S102869 | 
  Lengenbach Quarry, Binnental, Valais, Switzerland | 
  
           
   | 
   | 
   | Orthoclase | 
  R150014 | 
  K(AlSi3O8) | 
  Jennifer Schmidt (LDP12-02)  | 
  Locality: Cathedral Peak granite, near Toulumne meadows, Yosemite National Park, California, USA | 
  
           
   | 
   | 
   | Orthogersdorffite | 
  R070342 | 
  NiAsS | 
  Michael Scott S104664 | 
  Leichtenberg, Fichtelgebirge, Franconia, Bavaria, Germany | 
  
           
   | 
   | 
   | Orthominasragrite | 
  R060974 | 
  V4+O(SO4)·5H2O | 
  Michael Scott S101336 | 
  Temple Mountain, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Orthoserpierite | 
  R050292 | 
  CaCu4(SO4)2(OH)6·3H2O | 
  Peter Megaw  | 
  Platosa mine, Bermijillo, Durango, Mexico | 
  
           
   | 
   | 
   | Orthoserpierite | 
  R060793 | 
  CaCu4(SO4)2(OH)6·3H2O | 
  Bob Jenkins  | 
  Mi Fiel Rosita mine, Bolsico District, Copiapo, Chile | 
  
           
   | 
   | 
   | Orthoserpierite | 
  R060977 | 
  CaCu4(SO4)2(OH)6·3H2O | 
  Michael Scott S101453 | 
  Copper Creek, Galuiro Mountains, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Osarizawaite | 
  R060395 | 
  Pb(Al2Cu2+)(SO4)2(OH)6 | 
  Michael Scott S100083 | 
  Silver Hill mine, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Osarizawaite | 
  R060401 | 
  Pb(Al2Cu2+)(SO4)2(OH)6 | 
  American Museum of Natural History 34395 | 
  Akita Prefecture, Japan | 
  
           
   | 
   | 
   | Osarizawaite | 
  R060399 | 
  Pb(Al2Cu2+)(SO4)2(OH)6 | 
  American Museum of Natural History 34650 | 
  Bustillos Province, Bolivia | 
  
           
   | 
   | 
   | Osmium | 
  R060823 | 
  Os | 
  Michael Scott S101193 | 
  Nevjansk, Ural Mountains, USSR | 
  
           
   | 
   | 
   | Osmium | 
  R080088 | 
  Os | 
  Michael Scott S104204 | 
  Goodnews Bay, Bethel Borough, Alaska, USA | 
  
           
   | 
   | 
   | Osumilite | 
  R060385 | 
  KFe2(Al5Si10)O30 | 
  Michael Scott S100097 | 
  Funtanafigu Quarry, Monte Arci, near Oristano, Sardinia | 
  
           
   | 
   | 
   | Osumilite-(Mg) | 
  R141100 | 
  KMg2Al3(Al2Si10)O30 | 
  Ch. and H. Schäfer  | 
  Weinberg, Nickenich, Eifel, Germany | 
  
           
   | 
   | 
   | Osumilite-(Mg) | 
  R141102 | 
  KMg2Al3(Al2Si10)O30 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Mayen, Eifel, Germany | 
  
           
   | 
   | 
   | Oswaldpeetersite | 
  R060529 | 
  (UO2)2(CO3)(OH)2·4H2O | 
  Michael Scott S100783 | 
  Jomac mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Otavite | 
  R050677 | 
  Cd(CO3) | 
  University of Arizona Mineral Museum 5891 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Ottensite | 
  R070115 | 
  Na3(Sb2O3)3(SbS3)·3H2O | 
  Michael Scott S100424 | 
  Qinglong District, Qinglong, Qianxi'n Autonomous Prefecture, Guizhou, China | 
  
           
   | 
   | 
   | Ottensite | 
  R220043 | 
  Na3(Sb2O3)3(SbS3)·3H2O | 
  Erica Bittarello  | 
  Pereta mine, Tuscany, Italy | 
  
           
   | 
   | 
   | Ottoite | 
  R130126 | 
  Pb2TeO5 | 
  Bob Jenkins  | 
  Grand Central mine, Tombstone, Cochise County, Arizona | 
  
           
   | 
   | 
   | Ottrélite | 
  R060832 | 
  Mn2+Al2O(SiO4)(OH)2 | 
  Michael Scott S101006 | 
  Ottre, Belgium | 
  
           
   | 
   | 
   | Otwayite | 
  R060384 | 
  Ni2(CO3)(OH)2·H2O | 
  Michael Scott S100163 | 
  Otway Prospect, Nullagine Region, Western Australia, Australia | 
  
           
   | 
   | 
   | Overite | 
  R100024 | 
  CaMgAl(PO4)2(OH)·4H2O | 
  Terry Szenics  | 
  Clay Canyon deposit, near Fairfield, Utah County, Utah, USA | 
  
           
   | 
   | 
   | Owyheeite | 
  R060396 | 
  Ag3Pb10Sb11S28 | 
  Michael Scott S100102 | 
  Banner mine, Boise County, Idaho, USA | 
  
           
   | 
   | 
   | Owyheeite | 
  R070543 | 
  Ag3Pb10Sb11S28 | 
  James Shigley  | 
  Covada, Colville Indian Reservation, Ferry County, Washington, USA | 
  
           
   | 
   | 
   | Oxy-dravite | 
  R141094 | 
  Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O | 
  Ch. and H. Schäfer  | 
  Strada Vilante, San Martino al Cimino, Vico volcano, Viterbo, Latium, Italy | 
  
           
   | 
   | 
   | Oxy-schorl | 
  R140339 | 
  Na(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3O | 
  Bob Jenkins  | 
  Přibyslavice, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Oxycalcioroméite | 
  R200015 | 
  Ca2Sb5+2O7 | 
  Markus and Stefan Wiklund #00005 | 
  Langban mine, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Oxyphlogopite | 
  R141078 | 
  K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2 | 
  Ch. and H. Schäfer  | 
  Graulay, Hillesheim, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Oxyphlogopite | 
  R141079 | 
  K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2 | 
  Ch. and H. Schäfer  | 
  Nickenicher Sattel, Nickenich, Eifel, Germany | 
  
           
   | 
   | 
   | Pääkkönenite | 
  R060709 | 
  Sb2AsS2 | 
  Bob Jenkins  | 
  Caiwa mine, Danfeng, Shangluo Prefecture, Shaanxi, Northwest Region, China | 
  
           
   | 
   | 
   | Pääkkönenite | 
  R090073 | 
  Sb2AsS2 | 
  William W. Pinch  | 
  Damingshan Mountain area, Defeng, Shanglin County, Guangxi Province, China | 
  
           
   | 
   | 
   | Pabstite | 
  R060386 | 
  BaSnSi3O9 | 
  Michael Scott S100328 | 
  Kalkar Quarry, Santa Cruz County, California, USA | 
  
           
   | 
   | 
   | Pachnolite | 
  R070596 | 
  NaCaAlF6·H2O | 
  James Shigley  | 
  Ivigtut, Arsuk, Kitaa Province, Greenland | 
  
           
   | 
   | 
   | Painite | 
  X050128 | 
  CaZrAl9O15(BO3) | 
  G.R. Rossman 417 | 
  Ohngaing Village, Mogok, Burma | 
  
           
   | 
   | 
   | Painite | 
  R060957 | 
  CaZrAl9O15(BO3) | 
  Marcus Origlieri  | 
  Ohngaing Village, Mogok, Burma | 
  
           
   | 
   | 
   | Painite | 
  R100164 | 
  CaZrAl9O15(BO3) | 
  William W. Pinch  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Palenzonaite | 
  R060455 | 
  (NaCa2)Mn2+2(VO4)3 | 
  Michael Scott S100207 | 
  Molinello mine, Val Graveglia, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Palermoite | 
  R120141 | 
  Li2SrAl4(PO4)4(OH)4 | 
  Benjamin N. Schumer  | 
  Palermo No. 1 mine, Groton, New Hampshire, USA | 
  
           
   | 
   | 
   | Palermoite | 
  R130090 | 
  Li2SrAl4(PO4)4(OH)4 | 
  William W. Pinch and Don Doell  | 
  Palermo mine, North Groton, New Hampshire, USA | 
  
           
   | 
   | 
   | Palladium | 
  R070339 | 
  Pd | 
  Michael Scott S105927 | 
  Gongo Soco mine, Quadrilátero Ferrífero, Minas Gerais; Southeast, Brazil | 
  
           
   | 
   | 
   | Papagoite | 
  R040182 | 
  CaCuAlSi2O6(OH)3 | 
  University of Arizona Mineral Museum 10049 | 
  Ajo, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Parabrandtite | 
  R220028 | 
  Ca2Mn2+(AsO4)2·2H2O | 
  Bob Jenkins  | 
  Cobriza mine, Sacramento District, Copiapó Province, Chile | 
  
           
   | 
   | 
   | Parabutlerite | 
  R060754 | 
  Fe3+(SO4)(OH)·2H2O | 
  Michael Scott S101228 | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Parabutlerite | 
  R070547 | 
  Fe3+(SO4)(OH)·2H2O | 
  James Shigley  | 
  Chuquicamata mine, Calama, El Loa Province, Antofogasta, Chile | 
  
           
   | 
   | 
   | Parabutlerite | 
  R110161 | 
  Fe3+(SO4)(OH)·2H2O | 
  George Rossman, California Institute of Technology GRR242, CIT8170 | 
  Saghand, near Yazd, Iran | 
  
           
   | 
   | 
   | Paracetamol | 
  D120007 | 
   | 
  David Blake  | 
  Synthetic from Sigma | 
  
           
   | 
   | 
   | Paracoquimbite | 
  R050351 | 
  Fe3+4(SO4)6(H2O)12·6H2O | 
  California Institute of Technology W-19151 | 
  Cyprus | 
  
           
   | 
   | 
   | Paracoquimbite | 
  R140266 | 
  Fe3+4(SO4)6(H2O)12·6H2O | 
  Ken Roberts  | 
  Liaoning province, China | 
  
           
   | 
   | 
   | Paradamite | 
  R050582 | 
  Zn2(AsO4)(OH) | 
  University of Arizona Mineral Museum 13752 | 
  Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Parafransoletite | 
  R130056 | 
  Ca3Be2(PO4)2(PO3OH)2·4H2O | 
  Thomas A. Loomis TL-19 | 
  Tip Top mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Paragonite | 
  R050447 | 
  NaAl2(Si3Al)O10(OH)2 | 
  Marcus Origlieri  | 
  Switzerland | 
  
           
   | 
   | 
   | Parahopeite | 
  R050463 | 
  Zn3(PO4)2·4H2O | 
  University of Arizona Mineral Museum 13695 | 
  Broken Hill mine, Kabwe, Zambia | 
  
           
   | 
   | 
   | Parakeldyshite | 
  R120048 | 
  Na2ZrSi2O7 | 
  Donald Doell  | 
  Alluaiv Mt., Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Paralaurionite | 
  R050271 | 
  PbCl(OH) | 
  Marcus Origlieri  | 
  Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Paralaurionite | 
  R100178 | 
  PbCl(OH) | 
  Bob Jenkins  | 
  Sierra Gorda, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Paramontroseite | 
  R050391 | 
  VO2 | 
  University of Arizona Mineral Museum 1743 | 
  J.J. mine, Buell Canyon District, Montrose County, Colorado, USA | 
  
           
   | 
   | 
   | Parapierrotite | 
  R060397 | 
  TlSb5S8 | 
  Michael Scott S100098 | 
  Lookout Pass Area, southeast Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Pararealgar | 
  R140447 | 
  As4S4 | 
  Rock Currier  | 
  Getchell mine, Adam Peak, Potosi District, Osgood Mts, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Pararealgar | 
  R150123 | 
  As4S4 | 
  Michael Scott S106210  | 
  U.S. Borax mine, Kramer Borate deposit, Boron, California, USA | 
  
           
   | 
   | 
   | Pararobertsite | 
  R120119 | 
  Ca2Mn3+3(PO4)3O2·3H2O | 
  Thomas A. Loomis. Anthony R. Kampf provided a few crystals (Kampf 2000).  | 
  Tip Top mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Pararsenolamprite | 
  R060772 | 
  As | 
  Michael Scott S101097 | 
  Mukuno mine, Ouita, Japan | 
  
           
   | 
   | 
   | Parascholzite | 
  R060806 | 
  CaZn2(PO4)2·2H2O | 
  Michael Scott S100832 | 
  Tip Top mine, Fourmile, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Parasibirskite | 
  R110009 | 
  Ca2B2O5·H2O | 
  Jin-Xiao Mi  | 
  Synthetic | 
  
           
   | 
   | 
   | Parasymplesite | 
  R150137 | 
  Fe2+3(AsO4)2·8H2O | 
  Jeremie Pfister  | 
  Kiura Mine, Oita Pref., Kyushu Island, Japan | 
  
           
   | 
   | 
   | Paratacamite | 
  R160009 | 
  Cu3(Cu,Zn)Cl2(OH)6 | 
  Robert Jenkins  | 
  Torrecillas mine, Salar Grande, Iquique Provence, Chile | 
  
           
   | 
   | 
   | Paratooite-(La) | 
  R110066 | 
  (La,Ca,Na,Sr)6Cu(CO3)8 | 
  Renato & Adriana Pagano  | 
  Paratoo mine, Yunta, South Australia | 
  
           
   | 
   | 
   | Parauranophane | 
  R060962 | 
  Ca(UO2)2(SiO3OH)2·5H2O | 
  Michael Scott S101399 | 
  Teofilo Otoni, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Parauranophane | 
  R120075 | 
  Ca(UO2)2(SiO3OH)2·5H2O | 
  Donald Doell  | 
  Capoeira pegmatite,  Parelhas, Borborema mineral province, Rio Grande do Norte, Brazil | 
  
           
   | 
   | 
   | Paravauxite | 
  R040179 | 
  Fe2+Al2(PO4)2(OH)2·8H2O | 
  University of Arizona Mineral Museum 11446 | 
  Mina Siglo XX, Llallagua, Bolivia | 
  
           
   | 
   | 
   | Paravauxite | 
  R050314 | 
  Fe2+Al2(PO4)2(OH)2·8H2O | 
  Eugene Schlepp  | 
  Siglo XX mine, Llallagua, Bolivia | 
  
           
   | 
   | 
   | Paravauxite | 
  R050468 | 
  Fe2+Al2(PO4)2(OH)2·8H2O | 
  University of Arizona Mineral Museum 8180 | 
  Llallagua, Bustillos Province, Potosi, Bolivia | 
  
           
   | 
   | 
   | Paravauxite | 
  R050577 | 
  Fe2+Al2(PO4)2(OH)2·8H2O | 
  University of Arizona Mineral Museum 2414 | 
  Llallagua, Bolivia | 
  
           
   | 
   | 
   | Paravinogradovite | 
  R060834 | 
  (Na,◻)2(Ti4+,Fe3+)4(Si2O6)2(Si3AlO10)(OH)4·H2O | 
  Michael Scott S101009 | 
  Kukisvumchorr Mountain, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Pargasite | 
  R050321 | 
  NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | 
  Frank Hawthorne  | 
  Soper River, near Kimmirut, Baffin Island, Nunavut, Canada | 
  
           
   | 
   | 
   | Pargasite | 
  R060072 | 
  NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | 
  Marcus Origlieri  | 
  Pein Pyit, Mogok, Burma | 
  
           
   | 
   | 
   | Pargasite | 
  R060632 | 
  NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | 
  Gemological Institute of America 08 | 
  unknown | 
  
           
   | 
   | 
   | Pargasite | 
  R130006 | 
  NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | 
  Don Doell  | 
  Bear Lake diggings (Gibson Road Western occurrence), Gooderham, Monmouth Township, Haliburton County, Ontario, Canada | 
  
           
   | 
   | 
   | Parisite-(Ce) | 
  R050308 | 
  CaCe2(CO3)3F2 | 
  Eugene Schlepp  | 
  Muzo, Bogota, Colombia | 
  
           
   | 
   | 
   | Parisite-(Ce) | 
  R120061 | 
  CaCe2(CO3)3F2 | 
  Donald Doell  | 
  Snowbird mine, Fish Creek, Alberton, Mineral County, Montana, USA | 
  
           
   | 
   | 
   | Parisite-(Ce) | 
  R120065 | 
  CaCe2(CO3)3F2 | 
  Donald Doell  | 
  East Kemptville Tin mine, East Kemptville, Argyle, Yarmouth Co., Nova Scotia, Canada | 
  
           
   | 
   | 
   | Parisite-(La) | 
  R130687 | 
  CaLa2(CO3)3F2 | 
  Luiz Menezes  | 
  Novo Horizonte, Bahia, Brazil | 
  
           
   | 
   | 
   | Parkerite | 
  R070056 | 
  Ni3(Bi,Pb)2S2 | 
  Michael Scott S105052 | 
  Otjabrsky deposit, Norilsk ore district, Russia | 
  
           
   | 
   | 
   | Parsonsite | 
  R060154 | 
  Pb2(UO2)(PO4)2 | 
  Marcus Origlieri  | 
  Faye, near Grury, France | 
  
           
   | 
   | 
   | Parthéite | 
  R130077 | 
  Ca2(Si4Al4)O15(OH)2·4H2O | 
  Biljana Lazic  | 
  Denezhkin Kamen, Urals Region, Russia | 
  
           
   | 
   | 
   | Pascoite | 
  R060574 | 
  Ca3V5+10O28·17H2O | 
  Michael Scott S100803 | 
  Arrowhead Claim, Slick Rock, San Miguel County, Colorado, USA | 
  
           
   | 
   | 
   | Patrónite | 
  R070737 | 
  VS4 | 
  Michael Scott S103225 | 
  Ragra Mine (Minasragra), Junín, Cerro de Pasco, Alcides Carrión Province, Pasco Department, Peru | 
  
           
   | 
   | 
   | Paulingite-Ca | 
  R120023 | 
  (Ca,K,Na,Ba,◻)10(Si,Al)42O84·34H2O | 
  Dr. Jürgen Wachsmuth  | 
  Vinařická hora hill, Kladno, Central Bohemian Region, Czech Republic | 
  
           
   | 
   | 
   | Paulingite-K | 
  R070604 | 
  (K,Ca,Na,Ba,◻)10(Si,Al)42O84·34H2O | 
  James Shigley  | 
  Squaw Creek, Riggins, Idaho County, Idaho, USA | 
  
           
   | 
   | 
   | Paulingite-Na | 
  R060457 | 
   | 
  Michael Scott S100116 | 
  near Ritter, Grant County, Oregon, USA | 
  
           
   | 
   | 
   | Pavonite | 
  R070566 | 
  AgBi3S5 | 
  James Shigley  | 
  near Charcas, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Pearceite | 
  R050310 | 
  [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] | 
  Eugene Schlepp  | 
  Conception del Oro, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Pearceite | 
  R050611 | 
  [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] | 
  Marcus Origlieri  | 
  Imiter mine, Morocco | 
  
           
   | 
   | 
   | Pearceite | 
  R060689 | 
  [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] | 
  Michael Scott S101152 | 
  Clara mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany | 
  
           
   | 
   | 
   | Pearceite | 
  R090041 | 
  [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] | 
  Tony Jones  | 
  Uchucchacua mine, Oyon Province, Lima Department, Peru | 
  
           
   | 
   | 
   | Pectolite | 
  R050396 | 
  NaCa2Si3O8(OH) | 
  Marcus Origlieri  | 
  Jeffrey Quarry, Asbestos, Quebec, Canada | 
  
           
   | 
   | 
   | Pectolite | 
  R060101 | 
  NaCa2Si3O8(OH) | 
  University of Arizona Mineral Museum 6748 | 
  West Patterson, New Jersey, USA | 
  
           
   | 
   | 
   | Pectolite | 
  R070607 | 
  NaCa2Si3O8(OH) | 
  Michael Scott S104425 | 
  Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville County, Québec, Canada | 
  
           
   | 
   | 
   | Pectolite | 
  R120024 | 
  NaCa2Si3O8(OH) | 
  Dr. Jürgen Wachsmuth   | 
  Eveslogchorr Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Russia | 
  
           
   | 
   | 
   | Pellyite | 
  R150078 | 
  Ba2CaFe2+2Si6O17 | 
  Gunnar Farber  | 
  Gun Claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Penfieldite | 
  R050163 | 
  Pb2Cl3(OH) | 
  Jim McGlasson  | 
  Margarita mine, Sierra Gorda, Antofagasta, Chile | 
  
           
   | 
   | 
   | Penikisite | 
  R060160 | 
  BaMg2Al2(PO4)3(OH)3 | 
  Mark Mauthner 3568 | 
  16 miles north of the Hess River, Mayo Mining District, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Penikisite | 
  R060270 | 
  BaMg2Al2(PO4)3(OH)3 | 
  Michael Scott S100141 | 
  16 miles north of Hess River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Penkvilksite | 
  R130027 | 
  Na2TiSi4O11·2H2O | 
  Don Doell DD 13-01 | 
  Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Pentagonite | 
  R120136 | 
  CaV4+OSi4O10·4H2O | 
  Marcus Origlieri  | 
  Wagholi, Poona, Maharashtra State, India | 
  
           
   | 
   | 
   | Pentahydrite | 
  R060990 | 
  Mg(SO4)·5H2O | 
  Michael Scott S101469 | 
  Strassfurt, Prussia | 
  
           
   | 
   | 
   | Pentahydrite | 
  R070069 | 
  Mg(SO4)·5H2O | 
  James Shigley  | 
  Vulcano Island, Eolie Islands, Messina Province, Sicily, Italy | 
  
           
   | 
   | 
   | Pentahydrite | 
  R100022 | 
  Mg(SO4)·5H2O | 
  Michael Scott  S105209 | 
  Leopoldshall, Stassfurt, Stassfurt Deposit, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Pentlandite | 
  R060144 | 
  (Ni,Fe)9S8 | 
  University of Arizona Mineral Museum 5840 | 
  Worthington, Ontario, Canada | 
  
           
   | 
   | 
   | Peprossiite-(Ce) | 
  R110144 | 
  (Ce,La)(Al3O)2/3B4O10 | 
  Donald M Doell   | 
  Capranica, Vico Lake, Viterbo Province, Latium, Italy | 
  
           
   | 
   | 
   | Peretaite | 
  R060459 | 
  CaSb3+4O4(SO4)2(OH)2·2H2O | 
  Michael Scott S100298 | 
  Pereta mine, Grosseto, Tuscany, Italy | 
  
           
   | 
   | 
   | Perhamite | 
  R110142 | 
  Ca3Al7.7Si3P4O23.5(OH)14.1·8H2O | 
  Donald Doell  | 
  Emmons quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA | 
  
           
   | 
   | 
   | Perite | 
  R060766 | 
  PbBiO2Cl | 
  Michael Scott S101246 | 
  Blue Bell mine, San Bernardino, California, USA | 
  
           
   | 
   | 
   | Perovskite | 
  R050456 | 
  CaTiO3 | 
  University of Arizona Mineral Museum 2370 | 
  Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Perovskite | 
  R060345 | 
  CaTiO3 | 
  Michael Scott S100197 | 
  Latrappe, Oka District, Quebec, Canada | 
  
           
   | 
   | 
   | Perovskite | 
  R110178 | 
  CaTiO3 | 
  Donald Doell  | 
  St Lawrence Columbium mine, Oka, Laurentides, Quebec, Canada | 
  
           
   | 
   | 
   | Perovskite | 
  R120121 | 
  CaTiO3 | 
  Marcus Origlieri  | 
  Fuka mine, Bicchu-cho, Okayama Prefecture, Japan | 
  
           
   | 
   | 
   | Perovskite | 
  R130037 | 
  CaTiO3 | 
  Don Doell DD 13-09 | 
  Bond zone (Quebec Columbium Ltd. and Columbium Mining Products properties), Oka complex, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada | 
  
           
   | 
   | 
   | Perovskite | 
  R160074 | 
  CaTiO3 | 
  UAMM  | 
  Zlatoust, Southern Ural Mountains, Chelyabinsk, Russia | 
  
           
   | 
   | 
   | Perroudite | 
  R060699 | 
  Ag4Hg5S5(I,Br)2Cl2 | 
  Bob Jenkins  | 
  Copiapo, Chile | 
  
           
   | 
   | 
   | Perroudite | 
  R070484 | 
  Ag4Hg5S5(I,Br)2Cl2 | 
  Michael Scott S102891 | 
  Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France | 
  
           
   | 
   | 
   | Perryite | 
  R070052 | 
  (Ni,Fe)8(Si,P)3 | 
  Michael Scott S105049 | 
  Mount Egerton meteorite, Gaskoyne River, Western Australia, Australia | 
  
           
   | 
   | 
   | Pertlikite | 
  R110209 | 
  K2(Fe2+,Mg)2(Mg,Fe3+)4Fe3+2Al(SO4)12·18H2O | 
  Gunnar Farber  | 
  Mina Alcaparrosa, Cerritos Bayos, Calama, Atacama, II Region, Chile | 
  
           
   | 
   | 
   | Petalite | 
  R040100 | 
  LiAlSi4O10 | 
  Bob Downs  | 
  Brazil | 
  
           
   | 
   | 
   | Petalite | 
  R060365 | 
  LiAlSi4O10 | 
  Herb Obodda 015 | 
  Paprok, near Kamdesh, Nuristan, Kunar Province, Afghanistan | 
  
           
   | 
   | 
   | Petarasite | 
  R060223 | 
  Na5Zr2Si6O18(Cl,OH)·2H2O | 
  Royal Ontario Museum M49492 | 
  Demix Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Petarasite | 
  R060220 | 
  Na5Zr2Si6O18(Cl,OH)·2H2O | 
  Rock Currier  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Petedunnite | 
  R070207 | 
  CaZnSi2O6 | 
  William W. Pinch  | 
  Franklin, New Jersey, USA | 
  
           
   | 
   | 
   | Petermegawite | 
  R210008 | 
  Al6(Se4+O3)3[SiO3(OH)](OH)9·10H2O | 
  Bob Jenkins  | 
  El Dragon mine, Potosi, Bolivia | 
  
           
   | 
   | 
   | Petersenite-(Ce) | 
  R120035 | 
  Na4Ce2(CO3)5 | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Petersite-(Ce) | 
  R050541 | 
  Cu6Ce(PO4)3(OH)6·3H2O | 
  UAMM 19801 | 
  Cherry Creek district, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Petersite-(Y) | 
  R060538 | 
  Cu6Y(PO4)3(OH)6·3H2O | 
  Michael Scott S100204 | 
  Laurel Hill, Secaucus, New Jersey, USA | 
  
           
   | 
   | 
   | Petterdite | 
  R110019 | 
  PbCr2(CO3)2(OH)4·H2O | 
  Bob Jenkins  | 
  Red Lead mine, Dundas mineral field, Zeehan district, Tasmania, Australia | 
  
           
   | 
   | 
   | Petzite | 
  R070254 | 
  Ag3AuTe2 | 
  Michael Scott S105690 | 
  Red Jacket mine, Baker County, Oregon, USA | 
  
           
   | 
   | 
   | Pezzottaite | 
  R060583 | 
  CsLiBe2Al2Si6O18 | 
  Michael Scott S100812 | 
  Ambatovita, Mandrosonoro area, Fianarantsoa Province, Madagascar | 
  
           
   | 
   | 
   | Pharmacoalumite | 
  R060411 | 
  KAl4(AsO4)3(OH)4·6.5H2O | 
  Bob Jenkins  | 
  Maria Josefa, Rodalquilar, Almeria Province, Spain | 
  
           
   | 
   | 
   | Pharmacolite | 
  R050537 | 
  Ca(AsO3OH)·2H2O | 
  University of Arizona Mineral Museum 16150 | 
  Bohemia Region, Svornost mine, Jachymov, Czech Republic | 
  
           
   | 
   | 
   | Pharmacolite | 
  R070517 | 
  Ca(AsO3OH)·2H2O | 
  James Shigley  | 
  Getchell mine, Adam Peak, Potosi District, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Pharmacosiderite | 
  R050574 | 
  KFe3+4(AsO4)3(OH)4·6-7H2O | 
  University of Arizona Mineral Museum 5028 | 
  Cornwall, England | 
  
           
   | 
   | 
   | Pharmacosiderite | 
  R070587 | 
  KFe3+4(AsO4)3(OH)4·6-7H2O | 
  James Shigley  | 
  Mylar mine, Majuba Hill, Antelope District, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Phenakite | 
  R040046 | 
  Be2(SiO4) | 
  University of Arizona Mineral Museum 15677 | 
  San Miguel de Piracicaba, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Phenakite | 
  R040132 | 
  Be2(SiO4) | 
  University of Arizona Mineral Museum 4380 | 
  Kragerø, Telemark, Norway | 
  
           
   | 
   | 
   | Phenakite | 
  R050137 | 
  Be2(SiO4) | 
  Dave Bunk Minerals  | 
  Mount Antero area, Chaffee County, Colorado, USA | 
  
           
   | 
   | 
   | Phenakite | 
  X050129 | 
  Be2(SiO4) | 
  RD Shannon 49022- 34 | 
  Anjomabonoia, Madagascar | 
  
           
   | 
   | 
   | Philipsbornite | 
  R060683 | 
  PbAl3(AsO4)(AsO3OH)(OH)6 | 
  Bob Jenkins  | 
  Gold Hill, Nevada, USA | 
  
           
   | 
   | 
   | Philipsbornite | 
  R070065 | 
  PbAl3(AsO4)(AsO3OH)(OH)6 | 
  Bob Jenkins  | 
  Hat Yai Province, Thailand | 
  
           
   | 
   | 
   | Philipsbornite | 
  R150127 | 
  PbAl3(AsO4)(AsO3OH)(OH)6 | 
  Shields Flynn  | 
  Tsumeb mine, Tsumeb, Namibia | 
  
           
   | 
   | 
   | Philipsburgite | 
  R061036 | 
  Cu5Zn(AsO4)(PO4)(OH)6·H2O | 
  Michael Scott S101463 | 
  Black Pine mine, Granite county, Montana, USA | 
  
           
   | 
   | 
   | Phillipsite-Ca | 
  R050078 | 
  Ca3(Si10Al6)O32·12H2O | 
  Rock Currier  | 
  Grant County, Oregon, USA | 
  
           
   | 
   | 
   | Phillipsite-Ca | 
  R060161 | 
  Ca3(Si10Al6)O32·12H2O | 
  Marcus Origlieri  | 
  Sasback on Rhine, Germany | 
  
           
   | 
   | 
   | Phillipsite-K | 
  R140774 | 
  K6(Si10Al6)O32·12H2O | 
  Ch. and H. Schäfer  | 
  Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy | 
  
           
   | 
   | 
   | Phillipsite-K | 
  R141095 | 
  K6(Si10Al6)O32·12H2O | 
  Ch. and H. Schäfer  | 
  Capo di Bove, Alban hills, Latium, Italy | 
  
           
   | 
   | 
   | Phillipsite-Na | 
  R061094 | 
  Na6(Si10Al6)O32·12H2O | 
  Michael Scott S102422 | 
  Faraglione dei Ciccopi, Aci Castello, Catania Province, Sicily, Italy | 
  
           
   | 
   | 
   | Phillipsite-Na | 
  R070271 | 
  Na6(Si10Al6)O32·12H2O | 
  Michael Scott S105963 | 
  Etsumi, Ogi, Sado Island, Niigata Prefecture, Chubu Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Phlogopite | 
  R040144 | 
  KMg3(AlSi3O10)(OH)2 | 
  University of Arizona Mineral Museum 8644 | 
  Brinton's Quarry, Chester County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Phlogopite | 
  R050068 | 
  KMg3(AlSi3O10)(OH)2 | 
  Rock Currier  | 
  S.W. Jasper County, Georgia, USA | 
  
           
   | 
   | 
   | Phlogopite | 
  R050485 | 
  KMg3(AlSi3O10)(OH)2 | 
  California Institute of Technology W-20935 | 
  Libby, Montana, USA | 
  
           
   | 
   | 
   | Phlogopite | 
  R070330 | 
  KMg3(AlSi3O10)(OH)2 | 
  Mark Mauthner 3479 | 
  Little Chief mine, Whitehorse, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Phoenicochroite | 
  R050164 | 
  Pb2O(CrO4) | 
  Jim McGlasson  | 
  Chapacase mine, Sierra Cerrillias District, Tocopilla, Chile | 
  
           
   | 
   | 
   | Phoenicochroite | 
  R050587 | 
  Pb2O(CrO4) | 
  Marcus Origlieri  | 
  Potter Cramer mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Phosgenite | 
  R050640 | 
  Pb2(CO3)Cl2 | 
  University of Arizona Mineral Museum 2007 | 
  Monte Poni, Sardinia, Italy | 
  
           
   | 
   | 
   | Phosphoferrite | 
  R090065 | 
  Fe2+3(PO4)2·3H2O | 
  Royal Ontario Museum  M38123 | 
  Germany | 
  
           
   | 
   | 
   | Phosphoferrite | 
  R130690 | 
  Fe2+3(PO4)2·3H2O | 
  Rob Lavinsky  | 
  Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Phosphohedyphane | 
  R060733 | 
  Ca2Pb3(PO4)3Cl | 
  Bob Jenkins  | 
  Capitana mine, Copiapo, Chile | 
  
           
   | 
   | 
   | Phosphohedyphane | 
  R110037 | 
  Ca2Pb3(PO4)3Cl | 
  Brent Thorne  | 
  Blue Bell claims, Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Phosphophyllite | 
  R050224 | 
  Zn2Fe2+(PO4)2·4H2O | 
  Marcus Origlieri  | 
  Unificada mine, Cerro Rico, Potosi, Bolivia | 
  
           
   | 
   | 
   | Phosphosiderite | 
  R050459 | 
  Fe3+(PO4)·2H2O | 
  University of Arizona Mineral Museum 9779 | 
  Bull Moose mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Phosphosiderite | 
  R070519 | 
  Fe3+(PO4)·2H2O | 
  James Shigley  | 
  Stewart mine, Pala, San Diego County, California, USA | 
  
           
   | 
   | 
   | Phosphosiderite | 
  R110090 | 
  Fe3+(PO4)·2H2O | 
  Dave Owen  | 
  Courtland-Gleesan area, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Phosphuranylite | 
  R050470 | 
  KCa(H3O)3(UO2)7(PO4)4O4·8H2O | 
  University of Arizona Mineral Museum 8692 | 
  La Faye mine, Grury District, Burgundy Region, France | 
  
           
   | 
   | 
   | Phosphuranylite | 
  R110155 | 
  KCa(H3O)3(UO2)7(PO4)4O4·8H2O | 
  Luiz Menezes 2LI911 | 
  Folgosinho, Portugal | 
  
           
   | 
   | 
   | Phosphuranylite | 
  R130108 | 
  KCa(H3O)3(UO2)7(PO4)4O4·8H2O | 
  Don Doell  | 
  Shinkolobwe mine, Katanga, Zaire | 
  
           
   | 
   | 
   | Phurcalite | 
  R050534 | 
  Ca2(UO2)3O2(PO4)2·7H2O | 
  University of Arizona Mineral Museum 16115 | 
  Posey mine, Red Canyon, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Phurcalite | 
  R060698 | 
  Ca2(UO2)3O2(PO4)2·7H2O | 
  Bob Jenkins  | 
  Los Azules, Copiapo, Chile | 
  
           
   | 
   | 
   | Pickeringite | 
  R060108 | 
  MgAl2(SO4)4·22H2O | 
  University of Arizona Mineral Museum 4989 | 
  Tucumcari, New Mexico, USA | 
  
           
   | 
   | 
   | Picropharmacolite | 
  R050560 | 
  Ca4Mg(AsO3OH)2(AsO4)2·11H2O | 
  University of Arizona Mineral Museum 12813 | 
  Riechelsdorf, Saxony, Germany | 
  
           
   | 
   | 
   | Piemontite | 
  R060905 | 
  Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH) | 
  Michael Scott S100161 | 
  Praborna mine, Aosta Valley, St. Marcel, Italy | 
  
           
   | 
   | 
   | Piemontite | 
  R061119 | 
  Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH) | 
  Michael Scott S103609 | 
  Muramatsu mine, Kinkai, Nagasaki, Japan | 
  
           
   | 
   | 
   | Piemontite | 
  R150096 | 
  Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH) | 
  Marcus Origlieri  | 
  Ash Canyon, Huachuca Mountains, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Pigeonite | 
  R200002 | 
  (Mg,Fe,Ca)2Si2O6 | 
  James Shigley  | 
  Belmont Quarry, near Leesburg, Loudoun County, Virginia, USA | 
  
           
   | 
   | 
   | Pinakiolite | 
  R050636 | 
  (Mg,Mn)2(Mn3+,Sb5+)O2(BO3) | 
  University of Arizona Mineral Museum 2497 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Pirquitasite | 
  R061016 | 
  Ag2ZnSnS4 | 
  Michael Scott (small piece), Bob Jenkins (large piece) S101278 | 
  Pirquitas, Jujuy Province, Argentina | 
  
           
   | 
   | 
   | Pirssonite | 
  R070192 | 
  Na2Ca(CO3)2·2H2O | 
  Renato and Adriana Pagano  | 
  Natrum, Sahara, Egypt | 
  
           
   | 
   | 
   | Pitiglianoite | 
  R130097 | 
  K2Na6(Si6Al6)O24(SO4)·2H2O | 
  Donald Doell  | 
  Mt Cavalluccio, Campagnano di Roma, Sacrofano Caldera, Rome Province, Latium, Italy | 
  
           
   | 
   | 
   | Piypite | 
  R130048 | 
  K4Cu4O2(SO4)4·(Na,Cu)Cl | 
  Don Doell  | 
  Second scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Plancheite | 
  R070233 | 
  Cu8(Si4O11)2(OH)4·H2O | 
  Michael Scott S105426 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Plancheite | 
  R190037 | 
  Cu8(Si4O11)2(OH)4·H2O | 
  Rukin Jelks UAMM17415 | 
  Kambove, Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Planerite | 
  R080123 | 
  Al6(PO4)2(PO3OH)2(OH)8·4H2O | 
  Joan Abella i Creus  | 
  Bruguers, Gavá, Barcelona, Catalonia, Spain | 
  
           
   | 
   | 
   | Platinum | 
  R060750 | 
  Pt | 
  Michael Scott S101233 | 
  Bear Creek, near Nyak, Alaska, USA | 
  
           
   | 
   | 
   | Platinum | 
  R110126 | 
  Pt | 
  Mark N Feinglos  | 
  Tambiano River, Riampinang, Kalimantan Selatan Province, Borneo Island, Indonesia | 
  
           
   | 
   | 
   | Plattnerite | 
  R070605 | 
  PbO2 | 
  James Shigley  | 
  Ojuela mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Plattnerite | 
  R080019 | 
  PbO2 | 
  William W. Pinch  | 
  Snake Pit, lower Mex-Tex mine, Hansonburg District, Socorro County, New Mexico, USA | 
  
           
   | 
   | 
   | Plombièrite | 
  R070162 | 
  Ca4Si6O16(OH)2(H2O)2·(Ca·5H2O) | 
  James Shigley  | 
  Crestmore, Riverside County, California, USA | 
  
           
   | 
   | 
   | Plumbogummite | 
  R050458 | 
  PbAl3(PO4)(PO3OH)(OH)6 | 
  University of Arizona Mineral Museum 3040 | 
  Cornwall, England | 
  
           
   | 
   | 
   | Plumbogummite | 
  R060684 | 
  PbAl3(PO4)(PO3OH)(OH)6 | 
  Bob Jenkins  | 
  unknown | 
  
           
   | 
   | 
   | Plumbogummite | 
  R070700 | 
  PbAl3(PO4)(PO3OH)(OH)6 | 
  Ken Roberts  | 
  Yangshuo, Guangxi Autonomous Region, China | 
  
           
   | 
   | 
   | Plumbonacrite | 
  R160063 | 
  Pb5(CO3)3O(OH)2 | 
  University of Arizona Mineral Museum 4031 | 
  Mammoth mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Plumbonacrite | 
  R130567 | 
  Pb5(CO3)3O(OH)2 | 
  Rick Turner  | 
  Merehead Quarry, Cranmore, Somerset, England, UK | 
  
           
   | 
   | 
   | Plumbophyllite | 
  R130081 | 
  Pb2Si4O10·H2O | 
  Anthony R. Kampf and George R. Rossman  | 
  Blue Bell claims, about 11 km west of Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Plumbotsumite | 
  R110157 | 
  Pb5Si4O8(OH)10 | 
  Donald M Doell  | 
  Blue Bell claims, Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Poldervaartite | 
  R080080 | 
  Ca(Ca,Mn)(SiO3OH)(OH) | 
  William W. Pinch  | 
  Wessels mine, Hotazel, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Polkanovite | 
  R070076 | 
  Rh12As7 | 
  Michael Scott S105051 | 
  Miass River, Urals, Russia | 
  
           
   | 
   | 
   | Pollucite | 
  R050344 | 
  Cs(Si2Al)O6·nH2O | 
  George Rossman 2314 | 
  Konar Province, Afghanistan | 
  
           
   | 
   | 
   | Pollucite | 
  R050345 | 
  Cs(Si2Al)O6·nH2O | 
  California Institute of Technology W-20317 | 
  Bernic Lake, Manitoba, Canada | 
  
           
   | 
   | 
   | Polybasite | 
  R061052 | 
  [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] | 
  Royal Ontario Museum M52499 | 
  Elsa, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Polydymite | 
  R050609 | 
  Ni2+Ni3+2S4 | 
  University of Arizona Mineral Museum  | 
  Dry Nickel mine, Bindura, South Rhodesia, Rhodesia | 
  
           
   | 
   | 
   | Polydymite | 
  R070377 | 
  Ni2+Ni3+2S4 | 
  James Shigley  | 
  Shamva mine, Mashonaland Central, Zimbabwe | 
  
           
   | 
   | 
   | Polyhalite | 
  R070209 | 
  K2Ca2Mg(SO4)4·2H2O | 
  Michael Scott S105883 | 
  West Texas, Texas, USA | 
  
           
   | 
   | 
   | Polylithionite | 
  R050132 | 
  KLi2AlSi4O10F2 | 
  Dave Bunk Minerals  | 
  Brown Derby mine, Ohio City, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Polylithionite | 
  R060172 | 
  KLi2AlSi4O10F2 | 
  Guy Ouellet  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Polylithionite | 
  R060215 | 
  KLi2AlSi4O10F2 | 
  Royal Ontario Museum M49441 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Polylithionite | 
  R060225 | 
  KLi2AlSi4O10F2 | 
  Royal Ontario Museum M52556 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Polystyrene | 
  R150076 | 
   | 
  Thermo Electron Corporation  | 
  Synthetic | 
  
           
   | 
   | 
   | Portlandite | 
  R070210 | 
  Ca(OH)2 | 
  Michael Scott S105352 | 
  N'Chwaning II mine, Kalahari Manganese Field, northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Posnjakite | 
  R110172 | 
  Cu4(SO4)(OH)6·H2O | 
  George Stevens  | 
  Yellow Rose of Texas mine, Animas District, San Juan County, Colorado, USA | 
  
           
   | 
   | 
   | Potassic-arfvedsonite | 
  R050516 | 
  KNa2(Fe2+4Fe3+)Si8O22(OH)2 | 
  Frank Hawthorne  | 
  Red Wine complex, Labrador, Newfoundland, Canada | 
  
           
   | 
   | 
   | Potassic-fluoro-pargasite | 
  R110065 | 
  KCa2(Mg4Al)Si6Al2O22F2 | 
  Renato & Adriana Pagano  | 
  Tranomaro, Fort Dauphine area, Madagascar | 
  
           
   | 
   | 
   | Potassic-fluoro-richterite | 
  R060034 | 
  K(NaCa)Mg5Si8O22F2 | 
  University of Arizona Mineral Museum 8624 | 
  Walgidee, Western Australia, Australia | 
  
           
   | 
   | 
   | Potassic-magnesio-fluoro-arfvedsonite | 
  R060915 | 
  KNa2(Mg4Fe3+)Si8O22F2 | 
  Royal Ontario Museum M52453 | 
  Kipawa, Quebec, Canada | 
  
           
   | 
   | 
   | Potassium Dihydrogen Phosphate | 
  R120165 | 
  KH2PO4 | 
  Eric Van Valkenburg  | 
  Synthetic, by Alvin Van Valkenburg at the National Bureau of Standards | 
  
           
   | 
   | 
   | Poudretteite | 
  R080009 | 
  KNa2(B3Si12)O30 | 
  William W. Pinch  | 
  Pyant-gyi mine, near Pein-pyit, Mogok, Sagaing Region, Mandalay Division, Burma | 
  
           
   | 
   | 
   | Poughite | 
  R080026 | 
  Fe3+2(Te4+O3)2(SO4)·3H2O | 
  William W. Pinch  | 
  Mina Candelaria, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Powellite | 
  R050355 | 
  Ca(MoO4) | 
  George Rossman 2204 | 
  Nasik, India | 
  
           
   | 
   | 
   | Powellite | 
  R100180 | 
  Ca(MoO4) | 
  Joe Ruiz  | 
  Carlota mine, Pinto Creek, Gila, Arizona, USA | 
  
           
   | 
   | 
   | Prehnite | 
  R040047 | 
  Ca2Al(Si3Al)O10(OH)2 | 
  University of Arizona Mineral Museum 13048 | 
  Chloride, Mohave County, Arizona, USA | 
  
           
   | 
   | 
   | Prehnite | 
  R050055 | 
  Ca2Al(Si3Al)O10(OH)2 | 
  Rock Currier  | 
  Diako, Sandare District, Mali | 
  
           
   | 
   | 
   | Prehnite | 
  R050410 | 
  Ca2Al(Si3Al)O10(OH)2 | 
  John Lucking  | 
  Topel, Namibia | 
  
           
   | 
   | 
   | Prehnite | 
  R130046 | 
  Ca2Al(Si3Al)O10(OH)2 | 
  Don Doell  | 
  Eagle Head (Deep Cove), Cape Breton County, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Preisingerite | 
  R060803 | 
  Bi3O(AsO4)2(OH) | 
  Michael Scott S100110 | 
  Josef mine, Moldava, Czech. Republic | 
  
           
   | 
   | 
   | Preobrazhenskite | 
  R090040 | 
  Mg3B11O15(OH)9 | 
  Herb Obodda  | 
  Inder B deposit and salt dome, Atyrau Oblast, Kazakhstan | 
  
           
   | 
   | 
   | Priceite | 
  R050420 | 
  Ca2B5O7(OH)5·H2O | 
  Marcus Origlieri  | 
  20-Mule-Team Canyon, Death Valley, California, USA | 
  
           
   | 
   | 
   | Priceite | 
  R110008 | 
  Ca2B5O7(OH)5·H2O | 
  Jin-Xiao Mi  | 
  Synthetic | 
  
           
   | 
   | 
   | Priderite | 
  X060012 | 
  K(Ti7Fe3+)O16 | 
  University of Arizona Mineral Museum 8625 | 
  Walgidee Hills, Western Australia, Australia | 
  
           
   | 
   | 
   | Priderite | 
  R060437 | 
  K(Ti7Fe3+)O16 | 
  Michael Scott S100111 | 
  Walgridee Hills Intrusion, Western Australia, Australia | 
  
           
   | 
   | 
   | Priderite | 
  R130169 | 
  K(Ti7Fe3+)O16 | 
  Rock Currier  | 
  Vounnemiok River, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Prismatine | 
  R210004 | 
  (Mg,Al,Fe)6Al4(Si,Al)4(B,Si,Al)(O,OH,F)22 | 
  Dr Rainer Thomas  | 
  Goods Station Waldheim, Saxony, Germany | 
  
           
   | 
   | 
   | Probertite | 
  R050284 | 
  NaCaB5O7(OH)4·3H2O | 
  Marcus Origlieri  | 
  Borax Open Pit, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Prosopite | 
  R050668 | 
  CaAl2F4(OH)4 | 
  University of Arizona Mineral Museum 14101 | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Prosopite | 
  R100181 | 
  CaAl2F4(OH)4 | 
  Joe Ruiz  | 
  Carlota mine, Pinto Creek, Gila, Arizona, USA | 
  
           
   | 
   | 
   | Proto-ferro-anthophyllite | 
  R060053 | 
  ◻Fe2+2Fe2+5Si8O22(OH)2 | 
  Marcus Origlieri  | 
  Nyppio mine, near Utsonomiya, Japan | 
  
           
   | 
   | 
   | Proto-ferro-suenoite | 
  R061000 | 
  ◻Mn2+2Fe2+5Si8O22(OH)2 | 
  Michael Scott S101306 | 
  Yokoneyama, Tochigi, Japan | 
  
           
   | 
   | 
   | Protochabournéite | 
  R140583 | 
  Tl4-xPb2+2xSb20-x-yAsyS34 (with 0.02 ≤ x ≤ 0.34, 5.71 ≤ y ≤ 6.69) | 
  Stefan Schorn  | 
  Monte Arsiccio mine, Sant'Anna Di Stazzema, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Proustite | 
  R060356 | 
  Ag3AsS3 | 
  Herb Obodda 040 | 
  Chanarcillo, Atacama Province, Chile | 
  
           
   | 
   | 
   | Pseudoboleite | 
  R050162 | 
  Pb31Cu24Cl62(OH)48 | 
  Jim McGlasson  | 
  Margarita mine, Sierra Gorda, Antofagasta, Chile | 
  
           
   | 
   | 
   | Pseudoboleite | 
  R130548 | 
  Pb31Cu24Cl62(OH)48 | 
  Bob Jenkins  | 
  Sierra Gorda, Antofagasta, Chile | 
  
           
   | 
   | 
   | Pseudobrookite | 
  R050563 | 
  (Fe3+2Ti)O5 | 
  Dave Bunk Minerals  | 
  Thomas Range, Juab County, Utah, USA | 
  
           
   | 
   | 
   | Pseudobrookite | 
  R120173 | 
  (Fe3+2Ti)O5 | 
  Bob Jenkins  | 
  Nuestra Señora del Carmen Mines, La Celia, Jumilla, Murcia, Spain | 
  
           
   | 
   | 
   | Pseudobrookite | 
  R140974 | 
  (Fe3+2Ti)O5 | 
  Ch. and H. Schäfer  | 
  Emmelberg, Üdersdorf, Daun, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Pseudograndreefite | 
  R100006 | 
  Pb6(SO4)F10 | 
  Natural History Museum of Los Angeles County  LACMNH 33608 | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Pseudolaueite | 
  R170035 | 
  Mn2+Fe3+2(PO4)2(OH)2·8H2O | 
  Van King  | 
  Crooker Quarry, Newry, Maine, USA | 
  
           
   | 
   | 
   | Pseudomalachite | 
  R040175 | 
  Cu5(PO4)2(OH)4 | 
  University of Arizona Mineral Museum 12558 | 
  West Bogan mine, Tottenham, Australia | 
  
           
   | 
   | 
   | Pseudomalachite | 
  R050264 | 
  Cu5(PO4)2(OH)4 | 
  Marcus Origlieri  | 
  Cerro Morita, 27 km southwest of Agua Prieta, Sonora, Mexico | 
  
           
   | 
   | 
   | Pseudomalachite | 
  R050597 | 
  Cu5(PO4)2(OH)4 | 
  William W. Pinch  | 
  Cerro Negro mine, Carrizalillo, Chile | 
  
           
   | 
   | 
   | Pseudowollastonite | 
  R070762 | 
  CaSiO3 | 
  Paul Roth  | 
  Dredged from Tampa Bay harbour, Tampa Bay, Florida, USA | 
  
           
   | 
   | 
   | Pseudowollastonite | 
  R080145 | 
  CaSiO3 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Pucherite | 
  R060824 | 
  Bi(VO4) | 
  Michael Scott S101166 | 
  Pucher Shaft, Wolfgang Maaßen mine field, Schneeberg District, Saxony, Germany | 
  
           
   | 
   | 
   | Pucherite | 
  R080137 | 
  Bi(VO4) | 
  Luiz Menezes  | 
  Fazenda da Posse, Sao Jose do Brejauba, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Pumpellyite-(Al) | 
  R070131 | 
  Ca2Al3(Si2O7)(SiO4)(OH,O)2·H2O | 
  Michael Scott S100425 | 
  La Flèche Quarry, Bertrix, Luxembourg Province, Belgium | 
  
           
   | 
   | 
   | Pumpellyite-(Mg) | 
  R070130 | 
  Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O | 
  Michael Scott S100404 | 
  Isle Royale National Park, Lake Superior,  Keweenaw County, Michigan, USA | 
  
           
   | 
   | 
   | Pumpellyite-(Mg) | 
  R120172 | 
  Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O | 
  Bob Jenkins  | 
  Archidona, Malaga Province, Spain | 
  
           
   | 
   | 
   | Pyracmonite | 
  R220027 | 
  (NH4)3Fe(SO4)3 | 
  Rock Currier  | 
  Burnside, Northumberland Co., Pennsylvania, USA | 
  
           
   | 
   | 
   | Pyrargyrite | 
  R050290 | 
  Ag3SbS3 | 
  Dave Bunk Minerals  | 
  San Guillermo Vein, Cueva Santa area, San Luis Shaft, Proaño mine, Fresnillo, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Pyrargyrite | 
  R050318 | 
  Ag3SbS3 | 
  Eugene Schlepp  | 
  unknown | 
  
           
   | 
   | 
   | Pyrimethamine | 
  D120004 | 
   | 
  David Blake  | 
  Synthetic from Fluka | 
  
           
   | 
   | 
   | Pyrite | 
  R050070 | 
  FeS2 | 
  Rock Currier  | 
  Mina San Jose de Huanzala, Minero de Huallanca District, Department de Huanuco, Peru | 
  
           
   | 
   | 
   | Pyrite | 
  R050190 | 
  FeS2 | 
  Dave Bunk Minerals  | 
  Huanzala mine, Huallanca District, Dos de Mayo Province, Huanuco Department, Peru | 
  
           
   | 
   | 
   | Pyrite | 
  R070692 | 
  FeS2 | 
  James Shigley  | 
  Pohla, Schwarzenberg, Erzebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Pyrite | 
  R080030 | 
  FeS2 | 
  William W. Pinch  | 
  Schaft 209, Aue, Niederschlema, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Pyrite | 
  R100166 | 
  FeS2 | 
  Harvard microprobe standard, Mineralogical Museum, Harvard University 87957 | 
  Boston Consolidated mine, Bingham Canyon, 20 mi SSW of Salt Lake City, Salt Lake County, Utah, USA | 
  
           
   | 
   | 
   | Pyroaurite | 
  R100053 | 
  Mg6Fe3+2(CO3)(OH)16·4H2O | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Pyroaurite | 
  R120011 | 
  Mg6Fe3+2(CO3)(OH)16·4H2O | 
  Donald Doell  | 
  Scotch Lake quarry, Scotch Lake, Cape Breton County, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Pyrobelonite | 
  R080057 | 
  PbMn2+VO4(OH) | 
  Michael Scott S101174 | 
  Ty Coch Manganese mine, Glamorgan County, Wales, United Kingdom | 
  
           
   | 
   | 
   | Pyrobelonite | 
  R100056 | 
  PbMn2+VO4(OH) | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Pyrochlore | 
  R060151 | 
  Ca2Nb2O7 | 
  Marcus Origlieri  | 
  Oka, Quebec, Canada | 
  
           
   | 
   | 
   | Pyrochlore | 
  R060165 | 
  Ca2Nb2O7 | 
  Marcus Origlieri  | 
  Betafo, Madagascar | 
  
           
   | 
   | 
   | Pyrochlore | 
  R080050 | 
  Ca2Nb2O7 | 
  Michael Scott S100981 | 
  Hackman Valley, Yukspor Mountain, Khibiny, Kola, Russia | 
  
           
   | 
   | 
   | Pyrochlore | 
  R080058 | 
  Ca2Nb2O7 | 
  Michael Scott S101367 | 
  Samiresy, Madagascar | 
  
           
   | 
   | 
   | Pyrochlore | 
  R070742 | 
  Ca2Nb2O7 | 
  Michael Scott S103042 | 
  Alakurtti pegmatite, North Karelia, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Pyrochroite | 
  R100045 | 
  Mn2+(OH)2 | 
  Marcus Origlieri  | 
  N'Chwaning II mine, Kalahari Manganese Field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Pyrolusite | 
  R040153 | 
  MnO2 | 
  University of Arizona Mineral Museum 4047 | 
  San Carlos mine, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Pyrolusite | 
  R050361 | 
  MnO2 | 
  University of Arizona Mineral Museum 11514 | 
  Serra do Navio, Amapa, Brazil | 
  
           
   | 
   | 
   | Pyrolusite | 
  R120169 | 
  MnO2 | 
  Bob Jenkins  | 
  Unnamed prospect, Tal-Tal, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | Pyromorphite | 
  R050085 | 
  Pb5(PO4)3Cl | 
  Eugene Schlepp  | 
  Bunker Hill mine, Shoshone County, Idaho, USA | 
  
           
   | 
   | 
   | Pyromorphite | 
  R050027 | 
  Pb5(PO4)3Cl | 
  Eugene Schlepp  | 
  Yangshuo, Guangxi Autonomous Region, China | 
  
           
   | 
   | 
   | Pyromorphite | 
  R050015 | 
  Pb5(PO4)3Cl | 
  Eugene Schlepp  | 
  Bunker Hill mine, Shoshone County, Idaho, USA | 
  
           
   | 
   | 
   | Pyromorphite | 
  R060285 | 
  Pb5(PO4)3Cl | 
  Herb Obodda 104 | 
  Les Farges mine, Correze Ussel, France | 
  
           
   | 
   | 
   | Pyrope | 
  R040159 | 
  Mg3Al2(SiO4)3 | 
  University of Arizona Mineral Museum 4309 | 
  Meronitz, Bohemia | 
  
           
   | 
   | 
   | Pyrope | 
  R050112 | 
  Mg3Al2(SiO4)3 | 
  Carlos and Paulo Vasconcelos  | 
  Cruzeiro mine, San Jose, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Pyrope | 
  R050113 | 
  Mg3Al2(SiO4)3 | 
  Farooq and Nazia Sawal  | 
  Warsik, Pakistan | 
  
           
   | 
   | 
   | Pyrope | 
  X050190 | 
  Mg3Al2(SiO4)3 | 
  G.R. Rossman 59b | 
  Tanzania | 
  
           
   | 
   | 
   | Pyrope | 
  X050130 | 
  Mg3Al2(SiO4)3 | 
  G.R. Rossman 1728 | 
  San Bernardo, Dora Maria Massif, Italy | 
  
           
   | 
   | 
   | Pyrope | 
  X050131 | 
  Mg3Al2(SiO4)3 | 
  G.R. Rossman 60 | 
  unknown | 
  
           
   | 
   | 
   | Pyrope | 
  R050446 | 
  Mg3Al2(SiO4)3 | 
  Marcus Origlieri  | 
  Sunset Crater, Arizona, USA | 
  
           
   | 
   | 
   | Pyrope | 
  R060441 | 
  Mg3Al2(SiO4)3 | 
  Gemological Institute of America 20594 | 
  Apache County, Arizona, USA | 
  
           
   | 
   | 
   | Pyrope | 
  R060445 | 
  Mg3Al2(SiO4)3 | 
  Gemological Institute of America 13364 | 
  Tanzania | 
  
           
   | 
   | 
   | Pyrope | 
  R060448 | 
  Mg3Al2(SiO4)3 | 
  Gemological Institute of America 4799 | 
  India | 
  
           
   | 
   | 
   | Pyrope | 
  R070637 | 
  Mg3Al2(SiO4)3 | 
  Jibamitra Ganguly  | 
  Dora Maira Massif, Piedmont, Italy | 
  
           
   | 
   | 
   | Pyrope | 
  R080060 | 
  Mg3Al2(SiO4)3 | 
  Weiji Cheng  | 
  Synthetic at P = 23.5 kb, T = 1000 deg C for 23 hours | 
  
           
   | 
   | 
   | Pyrope | 
  R100153 | 
  Mg3Al2(SiO4)3 | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Pyrophanite | 
  R070211 | 
  Mn2+TiO3 | 
  Michael Scott S104979 | 
  Harstigen Mine, Pajsberg, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Pyrophyllite | 
  R050051 | 
  Al2Si4O10(OH)2 | 
  University of Arizona Mineral Museum 13207 | 
  Cottonstone Mountain, Mecklenburg County, North Carolina, USA | 
  
           
   | 
   | 
   | Pyrophyllite | 
  R050108 | 
  Al2Si4O10(OH)2 | 
  Rock Currier  | 
  Graves Mountain, Lincoln County, Georgia, USA | 
  
           
   | 
   | 
   | Pyrophyllite | 
  X050132 | 
  Al2Si4O10(OH)2 | 
  CIT 10297 | 
  Ogilby, Imperial Conty, California | 
  
           
   | 
   | 
   | Pyrophyllite | 
  X050133 | 
  Al2Si4O10(OH)2 | 
  CIT 14556 | 
  Indian Gulch, Mariposa County, California | 
  
           
   | 
   | 
   | Pyrosmalite-(Fe) | 
  R050158 | 
  Fe2+8Si6O15(OH)10 | 
  Jim McGlasson  | 
  Burguillos del Cerro, Badajos, Spain | 
  
           
   | 
   | 
   | Pyrosmalite-(Fe) | 
  R060438 | 
  Fe2+8Si6O15(OH)10 | 
  Michael Scott S100099 | 
  Monchi mine, Brugillos del Cerro, Badoz Province, Spain | 
  
           
   | 
   | 
   | Pyrosmalite-(Fe) | 
  R070313 | 
  Fe2+8Si6O15(OH)10 | 
  James Shigley  | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Pyrosmalite-(Mn) | 
  R110207 | 
  Mn2+8Si6O15(OH,Cl)10 | 
  Royal Ontario Museum M42426 | 
  Kyurasawa mine, Ashio, Tochigi Prefecture, Kanto Region, Japan | 
  
           
   | 
   | 
   | Pyroxene | 
  R110130 | 
   | 
  Bart Cannon  | 
  Little Deer Creek eclogite, Skagit County, Washington, USA | 
  
           
   | 
   | 
   | Pyroxferroite | 
  R140465 | 
  Fe2+SiO3 | 
  Rock Currier  | 
  Isanago mine, Ohro, Kyotango city, Kyoto Prefecture, Kinki Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Pyroxferroite | 
  R141080 | 
  Fe2+SiO3 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Pyroxmangite | 
  X050134 | 
  Mn2+SiO3 | 
  CIT 7847 | 
  Shidara, Kitashidara-gun, Aichi, Japan | 
  
           
   | 
   | 
   | Pyroxmangite | 
  R060999 | 
  Mn2+SiO3 | 
  Michael Scott S101306 | 
  Yokoneyama, Tochigi, Japan | 
  
           
   | 
   | 
   | Pyroxmangite | 
  R070212 | 
  Mn2+SiO3 | 
  Michael Scott S104978 | 
  Isanago mine,  Ohro (Ōro; Ouro; Ooro),  Naka-gun,  Kyoto Prefecture,  Kinki Region,  Honshu Island,  Japan | 
  
           
   | 
   | 
   | Pyroxmangite | 
  R130536 | 
  Mn2+SiO3 | 
  Rock Currier and Marcus Origlieri  | 
  Taguchi mine, Shidara, Aichi Prefecture, Japan | 
  
           
   | 
   | 
   | Pyrrhotite | 
  R060440 | 
  Fe7S8 | 
  Michael Scott S100128 | 
  Dal 'Negorsk, Primorskiy Kray, far eastern Russia | 
  
           
   | 
   | 
   | Pyrrhotite | 
  R061127 | 
  Fe7S8 | 
  Michael Scott S103486 | 
  Morro Velho Gold mine, Nova Umha, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Qilianshanite | 
  R100019 | 
  NaH4(CO3)(BO3)·2H2O | 
  Dave Bish  | 
  Lewis Cliff Ice Tongue, Antarctica | 
  
           
   | 
   | 
   | Quadridavyne | 
  R141084 | 
  [(Na,K)6Cl2][Ca2Cl2][(Si6Al6O24)] | 
  Ch. and H. Schäfer  | 
  Mt Vesuvius, Naples Province, Campania, Italy | 
  
           
   | 
   | 
   | Quartz | 
  R040031 | 
  SiO2 | 
  Bob Downs  | 
  Spruce Claim, King County, Washington, USA | 
  
           
   | 
   | 
   | Quartz | 
  R050125 | 
  SiO2 | 
  Carlos and Paulo Vasconcelos  | 
  Linopolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Quartz | 
  R060604 | 
  SiO2 | 
  Michael Scott S100119 | 
  Piedras Parada, Veracruz, Mexico | 
  
           
   | 
   | 
   | Quartz | 
  X080015 | 
  SiO2 | 
  Gemological Institute of America 17239 | 
  Synthetic | 
  
           
   | 
   | 
   | Quartz | 
  X080016 | 
  SiO2 | 
  Gemological Institute of America 16730 | 
  Synthetic | 
  
           
   | 
   | 
   | Quartz | 
  R100134 | 
  SiO2 | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Quartz | 
  R110104 | 
  SiO2 | 
  Gemological Institute of America 10-12-2010-8 | 
  Synthetic | 
  
           
   | 
   | 
   | Quartz | 
  R110108 | 
  SiO2 | 
  Gemological Institute of America 10-12-2010-13 | 
  Synthetic | 
  
           
   | 
   | 
   | Quartz | 
  R150074 | 
  SiO2 | 
  UAMM 9180  | 
  Selvino, Bergamo, Italy | 
  
           
   | 
   | 
   | Quartz | 
  R150091 | 
  SiO2 | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Quenselite | 
  R060439 | 
  PbMn3+O2(OH) | 
  Michael Scott S100105 | 
  Amerika Stope, Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Quenselite | 
  R100036 | 
  PbMn3+O2(OH) | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Quintinite | 
  R070709 | 
  Mg4Al2(OH)12(CO3)·3H2O | 
  Michael Scott S104013 | 
  Jacupiranga mine, Cajati, São Paulo, Southeast Region, Brazil | 
  
           
   | 
   | 
   | Radhakrishnaite | 
  R070711 | 
  PbTe3(Cl,S)2 | 
  Michael Scott S104015 | 
  Oktyabr'skoye Cu-Ni Deposit (Oktyabr'sk Deposit),  Noril'sk,  Putoran Plateau,  Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai),  Eastern-Siberian Region,  Russia | 
  
           
   | 
   | 
   | Raguinite | 
  R130617 | 
  TlFeS2 | 
  Mark N. Feinglos  | 
  Allchar, Roszdan, Republic of Macedonia | 
  
           
   | 
   | 
   | Raite | 
  R060854 | 
  Na3Mn2+3Ti0.25(Si8O20)(OH)2·10H2O | 
  Michael Scott S100990 | 
  Mount Kurnasurt, Lovozero Massif, Kola Peninsula, USSR | 
  
           
   | 
   | 
   | Rajite | 
  R060729 | 
  CuTe4+2O5 | 
  Bob Jenkins  | 
  Lone Pine mine, Catron County, New Mexico, USA | 
  
           
   | 
   | 
   | Ramdohrite | 
  R100190 | 
  Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 | 
  William W Pinch  | 
  Potosi, Bolivia | 
  
           
   | 
   | 
   | Ramdohrite | 
  R110001 | 
  Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 | 
  Mark N. Feinglos  | 
  Chocaya, Potosi, Bolivia | 
  
           
   | 
   | 
   | Rammelsbergite | 
  R061021 | 
  NiAs2 | 
  Michael Scott S101275 | 
  Schneckenstei, Vogtland, Saxony, Germany | 
  
           
   | 
   | 
   | Ramsbeckite | 
  R050295 | 
  Cu15(SO4)4(OH)22·6H2O | 
  George Godas, John Callahan  | 
  79 mine, 6th level, 31 stope, Hayden, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Ramsdellite | 
  R050552 | 
  MnO2 | 
  Dave Bunk Minerals  | 
  Lake Valley, Sierra County, New Mexico, USA | 
  
           
   | 
   | 
   | Rankinite | 
  R140775 | 
  Ca3Si2O7 | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Rapidcreekite | 
  R070287 | 
  Ca2(SO4)(CO3)·4H2O | 
  Mark Mauthner 3357 | 
  Locality 1 (Crosscut Creek), Rapid Creek, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Raslakite | 
  R070071 | 
  Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)Si25O73(OH,H2O)3(Cl,OH) | 
  Michael Scott S105054 | 
  Raslak Cirques, near Kedybverpahkh Mountain, Lovozero Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Raspite | 
  R050567 | 
  Pb(WO4) | 
  University of Arizona Mineral Museum 13642 | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Raspite | 
  R130514 | 
  Pb(WO4) | 
  Bruce Murphy  | 
  Grand Central mine, Tombstone, Arizona, USA | 
  
           
   | 
   | 
   | Rasvumite | 
  R060491 | 
  KFe2S3 | 
  Michael Scott S100017 | 
  Coyote Peak, Humboldt County, California, USA | 
  
           
   | 
   | 
   | Rathite | 
  R070691 | 
  Ag2Pb12-xTlx/2As18+x/2S40 | 
  James Shigley  | 
  Lengenbach Quarry, near Imfeld, Binnental, Valais, Switzerland | 
  
           
   | 
   | 
   | Raydemarkite | 
  R210023 | 
  MoO3·H2O | 
  Ron Gibbs  | 
  Cookes Peak, Cookes Range, Luna County, New Mexico, USA | 
  
           
   | 
   | 
   | Raygrantite | 
  R120151 | 
  Pb10Zn(SO4)6(SiO4)2(OH)2 | 
  Ron Gibbs and Bob Jenkins  | 
  Evening Star mine, Tiger Wash, Belmont Mountain, Tonopah, Big Horn Mts, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Realgar | 
  R060106 | 
  AsS | 
  University of Arizona Mineral Museum 12621 | 
  Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Realgar | 
  R060107 | 
  AsS | 
  University of Arizona Mineral Museum 13816 | 
  Shimen, Hunan Province, China | 
  
           
   | 
   | 
   | Realgar | 
  R100026 | 
  AsS | 
  Rob Woodside  | 
  Palomo mine, Castrovirreyna Province, Huancavelica Department, Peru | 
  
           
   | 
   | 
   | Reddingite | 
  R090058 | 
  Mn2+3(PO4)2·3H2O | 
  Royal Ontario Museum M53457 | 
  Palermo #1, North Groton, New Hampshire, USA | 
  
           
   | 
   | 
   | Redledgeite | 
  R070714 | 
  Ba(Ti6Cr3+2)O16 | 
  Michael Scott S103520 | 
  Red Ledge mine, Washington, Washington District, Nevada County, California, USA | 
  
           
   | 
   | 
   | Reedmergnerite | 
  R060096 | 
  NaBSi3O8 | 
  University of Arizona Mineral Museum 16841 | 
  Dara-i-Pioz, Tadjikistan | 
  
           
   | 
   | 
   | Reevesite | 
  R070678 | 
  Ni6Fe3+2(CO3)(OH)16·4H2O | 
  Michael Scott S104318 | 
  Otway Prospect, Nullagine Region, Western Australia, Australia | 
  
           
   | 
   | 
   | Refikite | 
  R180004 | 
  C20H34O2 | 
  Stefan Schorn  | 
  Moors in Bad Feilnbach, Bavaria, Germany | 
  
           
   | 
   | 
   | Reichenbachite | 
  R060867 | 
  Cu5(PO4)2(OH)4 | 
  Michael Scott S100853 | 
  Old Gunnislake mine, Gunnislake, Cornwall, England | 
  
           
   | 
   | 
   | Reichenbachite | 
  R170008 | 
  Cu5(PO4)2(OH)4 | 
  Renato and Adriana Pagano  | 
  Kipushi, Katanga, Congo | 
  
           
   | 
   | 
   | Reichenbachite | 
  R170028 | 
  Cu5(PO4)2(OH)4 | 
  Renato and Adriana Pagano  | 
  Kipushi, Katanga, Congo | 
  
           
   | 
   | 
   | Reinerite | 
  R080132 | 
  Zn3(AsO3)2 | 
  William W. Pinch  | 
  4400 ft. level, Tsumeb, Namibia | 
  
           
   | 
   | 
   | Reinhardbraunsite | 
  R061006 | 
  Ca5(SiO4)2(OH)2 | 
  Michael Scott S101273 | 
  Bellerberg, Eifel, Germany | 
  
           
   | 
   | 
   | Rémondite-(Ce) | 
  R120060 | 
  Na3(Ce,Ca,Na)3(CO3)5 | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Renierite | 
  R050428 | 
  (Cu1+,Zn)11Fe4(Ge4+,As5+)2S16 | 
  University of Arizona Mineral Museum 10225 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Renierite | 
  R050433 | 
  (Cu1+,Zn)11Fe4(Ge4+,As5+)2S16 | 
  University of Arizona Mineral Museum 8325 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Retgersite | 
  R070665 | 
  Ni(SO4)·6H2O | 
  Michael Scott S104324 | 
  Lovelock mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill County, Nevada, USA | 
  
           
   | 
   | 
   | Retgersite | 
  R100086 | 
  Ni(SO4)·6H2O | 
  Lab supplies  | 
  Synthetic, Fluka Chemie 72280 | 
  
           
   | 
   | 
   | Retgersite | 
  R130119 | 
  Ni(SO4)·6H2O | 
  Rock Currier  | 
  Cerro de Pasco, Alcides Carrión Province, Pasco department, Peru | 
  
           
   | 
   | 
   | Retgersite | 
  R130366 | 
  Ni(SO4)·6H2O | 
  Tom Loomis  | 
  Minas Ragra mine, Pasco, Peru | 
  
           
   | 
   | 
   | Reyerite | 
  R060749 | 
  Na2Ca14Al2Si22O58(OH)8·6H2O | 
  Michael Scott S100299 | 
  Drynoch, Island of Skye, Scotland | 
  
           
   | 
   | 
   | Reyerite | 
  R060490 | 
  Na2Ca14Al2Si22O58(OH)8·6H2O | 
  Michael Scott S100309 | 
  Drynoch, Island of Skye, Scotland | 
  
           
   | 
   | 
   | Rheniite | 
  R050362 | 
  ReS2 | 
  University of Arizona Mineral Museum 16071 | 
  Kudryaviy Volcano, Iturup Island, Kurilian Chain, Russia | 
  
           
   | 
   | 
   | Rhodarsenide | 
  R070074 | 
  Rh2As | 
  Michael Scott S105059 | 
  Miass River, Urals, Russia | 
  
           
   | 
   | 
   | Rhodizite | 
  R050099 | 
  KBe4Al4(B11Be)O28 | 
  Rock Currier  | 
  Mont Ibity, Antsirabe, Madagascar | 
  
           
   | 
   | 
   | Rhodizite | 
  R110072 | 
  KBe4Al4(B11Be)O28 | 
  Renato & Adriana Pagano  | 
  Sahanivotry, Sud Antzirabe, Madagascar | 
  
           
   | 
   | 
   | Rhodochrosite | 
  R040133 | 
  Mn(CO3) | 
  University of Arizona Mineral Museum 13417 | 
  Imuris, Sonora, Mexico | 
  
           
   | 
   | 
   | Rhodochrosite | 
  R050019 | 
  Mn(CO3) | 
  Eugene Schlepp  | 
  Home Sweet Home mine, Colorado, USA | 
  
           
   | 
   | 
   | Rhodochrosite | 
  R050116 | 
  Mn(CO3) | 
  He Xin Jian  | 
  Wudong mine, Liubao, Guangxi Autonomous Region, China | 
  
           
   | 
   | 
   | Rhodochrosite | 
  X050138 | 
  Mn(CO3) | 
  G.R. Rossman 1858 | 
  Colorado, USA | 
  
           
   | 
   | 
   | Rhodochrosite | 
  R100002 | 
  Mn(CO3) | 
  Marcus Origlieri  | 
  Wudong mine, Liubao, Guangxi  Autonomous Region, China | 
  
           
   | 
   | 
   | Rhodochrosite | 
  R100162 | 
  Mn(CO3) | 
  William W. Pinch  | 
  N'Chwaning mine, Kuruman, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Rhodonite | 
  R040041 | 
  CaMn3Mn(Si5O15) | 
  University of Arizona Mineral Museum 4419 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Rhodonite | 
  R060196 | 
  CaMn3Mn(Si5O15) | 
  Marcus Origlieri  | 
  Morro da Mina, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Rhodonite | 
  R060363 | 
  CaMn3Mn(Si5O15) | 
  Herb Obodda 071 | 
  2600' level, Broken Hill mine, New South Wales, Australia | 
  
           
   | 
   | 
   | Rhodonite | 
  R060549 | 
  CaMn3Mn(Si5O15) | 
  Gemological Institute of America 23 | 
  unknown | 
  
           
   | 
   | 
   | Rhodonite | 
  X080001 | 
  CaMn3Mn(Si5O15) | 
  Michael Scott  | 
  Brazil | 
  
           
   | 
   | 
   | Rhodonite | 
  R100038 | 
  CaMn3Mn(Si5O15) | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Rhodostannite | 
  R120139 | 
  Cu1+(Fe2+0.5Sn4+1.5)S4 | 
  Michael Scott  S101278 | 
  Pirquitas, Jujuy Province, Argentina | 
  
           
   | 
   | 
   | Rhomboclase | 
  R070507 | 
  (H5O2)Fe3+(SO4)2·2H2O | 
  James Shigley  | 
  Alcaparrosa, Antofogasta, Chile | 
  
           
   | 
   | 
   | Rhönite | 
  R060316 | 
  Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36] | 
  Michael Scott S100202 | 
  Nickenicher Sattel, Laacher See District, Eifel, Germany | 
  
           
   | 
   | 
   | Ribbeite | 
  R140497 | 
  Mn2+5(SiO4)2(OH)2 | 
  Rock Currier  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | Ribbeite | 
  R150125 | 
  Mn2+5(SiO4)2(OH)2 | 
  Michael Scott S100253 | 
  Parker Shaft, Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Richelsdorfite | 
  R130552 | 
  Ca2Cu5Sb5+(AsO4)4(OH)6Cl·6H2O | 
  Bob Jenkins  | 
  Silberberg, Brixlegg, Austria | 
  
           
   | 
   | 
   | Richetite | 
  R090053 | 
  (Fe3+,Mg)xPb2+8.6(UO2)36O36(OH)24·41H2O | 
  William W. Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Richterite | 
  X050188 | 
  Na(NaCa)Mg5Si8O22(OH)2 | 
  CIT 2482 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Richterite | 
  X050139 | 
  Na(NaCa)Mg5Si8O22(OH)2 | 
  CIT 8019 | 
  Wilberforce, Ontario, Canada | 
  
           
   | 
   | 
   | Richterite | 
  R050414 | 
  Na(NaCa)Mg5Si8O22(OH)2 | 
  Marcus Origlieri  | 
  Kokcha Valley, Badakhshan, Afghanistan | 
  
           
   | 
   | 
   | Richterite | 
  R060043 | 
  Na(NaCa)Mg5Si8O22(OH)2 | 
  University of Arizona Mineral Museum 13132 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Richterite | 
  R060471 | 
  Na(NaCa)Mg5Si8O22(OH)2 | 
  Michael Scott S100107 | 
  Kipawa Complex, Villedieu Township, Quebec, Canada | 
  
           
   | 
   | 
   | Richterite | 
  R100069 | 
  Na(NaCa)Mg5Si8O22(OH)2 | 
  Bob Jenkins   | 
  La Ceila, near Jumilla, Murcia Province, Spain | 
  
           
   | 
   | 
   | Rickardite | 
  R140500 | 
  Cu3-xTe2 | 
  Rock Currier  | 
  600' Level, Good Hope mine, Vulcan, Vulcan District, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Rickturnerite | 
  R130568 | 
  Pb7O4[Mg(OH)4](OH)Cl3 | 
  Rick Turner  | 
  Merehead Quarry, Cranmore, Somerset, England, UK | 
  
           
   | 
   | 
   | Riebeckite | 
  R050082 | 
  ◻Na2(Fe2+3Fe3+2)Si8O22(OH)2 | 
  Rock Currier  | 
  Mt. Malosa, Zomba, Chilwa, Alkaline Area, Malawi | 
  
           
   | 
   | 
   | Riebeckite | 
  R060028 | 
  ◻Na2(Fe2+3Fe3+2)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 9374 | 
  Transvaal, South Africa | 
  
           
   | 
   | 
   | Riebeckite | 
  R120033 | 
  ◻Na2(Fe2+3Fe3+2)Si8O22(OH)2 | 
  Donald Doell  | 
  Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan | 
  
           
   | 
   | 
   | Ringwoodite | 
  R070079 | 
  SiMg2O4 | 
  Michael Scott S105057 | 
  Tenham meteorite, south Gregory, Queensland, Australia | 
  
           
   | 
   | 
   | Ringwoodite | 
  R090003 | 
  SiMg2O4 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Rinkite-(Ce) | 
  R050229 | 
  (Ca3REE)Na(NaCa)Ti(Si2O7)2(OF)F2 | 
  Marcus Origlieri  | 
  Kipawa alkaline complex, near Sheffield Lake, Villedieu Township, Temiscamingue County, Quebec, Canada | 
  
           
   | 
   | 
   | Rinneite | 
  R060649 | 
  K3NaFe2+Cl6 | 
  Michael Scott S100823 | 
  Salton Sea, Imperial County, California, USA | 
  
           
   | 
   | 
   | Robertsite | 
  R120040 | 
  Ca2Mn3+3O2(PO4)3·3H2O | 
  Mark N. Feinglos  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Robertsite | 
  R130045 | 
  Ca2Mn3+3O2(PO4)3·3H2O | 
  Thomas A. Loomis TL-17 | 
  Tip Top mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Robinsonite | 
  R060970 | 
  Pb4Sb6S13 | 
  Michael Scott S100397 | 
  Mala Zelezna, Zilinsky Kraj, Slovakia | 
  
           
   | 
   | 
   | Rockbridgeite | 
  R060858 | 
  (Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 | 
  Marcus Origlieri  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Rockbridgeite | 
  R070594 | 
  (Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 | 
  James Shigley  | 
  Llallagua, Bustillos, Potosi, Bolivia | 
  
           
   | 
   | 
   | Rodalquilarite | 
  R061063 | 
  H3Fe3+2(Te4+O3)4Cl | 
  Bob Jenkins  | 
  Wendy open pit, Tambo mine, El Indio deposit, Elqui Province, Coquimbo Region, Chile | 
  
           
   | 
   | 
   | Rodalquilarite | 
  R130549 | 
  H3Fe3+2(Te4+O3)4Cl | 
  Bob Jenkins  | 
  Tombstone, Cochise County, Arizona | 
  
           
   | 
   | 
   | Roeblingite | 
  R070713 | 
  Ca6Mn2+Pb2(Si3O9)2(SO4)2(OH)2·4H2O | 
  Michael Scott S104345 | 
  Parker Shaft, Franklin mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Roeblingite | 
  R140328 | 
  Ca6Mn2+Pb2(Si3O9)2(SO4)2(OH)2·4H2O | 
  Benjamin N. Schumer  | 
  Långban, Varmland, Sweden | 
  
           
   | 
   | 
   | Roedderite | 
  R141093 | 
  KNaMg2(Mg3Si12)O30 | 
  Ch. and H. Schäfer  | 
  Emmelberg, Üdersdorf, Eifel, Germany | 
  
           
   | 
   | 
   | Romanèchite | 
  R060337 | 
  (Ba,H2O)2(Mn4+,Mn3+)5O10 | 
  Michael Scott S100209 | 
  6.5 miles south of Palo Verde, Imperial County, California, USA | 
  
           
   | 
   | 
   | Romarchite | 
  R080006 | 
  SnO | 
  Royal Ontario Museum M53027 | 
  Boundary Falls, Winnipeg River, Ontario, Canada | 
  
           
   | 
   | 
   | Roméite | 
  R060323 | 
  (Ca,Fe2+,Mn2+,Na)2(Sb5+,Ti4+)2O6(O,OH,F) | 
  Michael Scott S100161 | 
  Praborna mine, Aosta Valley, St. Marcel, Italy | 
  
           
   | 
   | 
   | Roméite | 
  R060736 | 
  (Ca,Fe2+,Mn2+,Na)2(Sb5+,Ti4+)2O6(O,OH,F) | 
  Michael Scott S101113 | 
  Le Cetine di Cotorniano, Chiusdino, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Römerite | 
  R060238 | 
  Fe2+Fe3+2(SO4)4·14H2O | 
  University of Arizona Mineral Museum 15636 | 
  Dexter no. 7 mine, Calf Mesa, San Rafael Swell, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Römerite | 
  R060820 | 
  Fe2+Fe3+2(SO4)4·14H2O | 
  Bob Jenkins  | 
  Alcaparrosa mine, Tierra Amarilla, Chile | 
  
           
   | 
   | 
   | Rongibbsite | 
  R100031 | 
  Pb2(Si4Al)O11(OH) | 
  Ron Gibbs  | 
  A prospect near Evening Star mine, Bighorn Mountains, Maricopa County, Arizona | 
  
           
   | 
   | 
   | Rooseveltite | 
  R060804 | 
  Bi(AsO4) | 
  Michael Scott S100110 | 
  Josef mine, Moldava, Czech. Republic | 
  
           
   | 
   | 
   | Rosasite | 
  X060013 | 
  CuZn(CO3)(OH)2 | 
  University of Arizona Mineral Museum 10325 | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Rosasite | 
  R050294 | 
  CuZn(CO3)(OH)2 | 
  George Godas, John Callahan  | 
  79 mine, 4th level, Hayden, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Rosasite | 
  R100077 | 
  CuZn(CO3)(OH)2 | 
  Mark Ascher  | 
  79 mine, Hayden, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Rosasite | 
  R120007 | 
  CuZn(CO3)(OH)2 | 
  Marcus Origlieri  | 
  Mina Ojuela, Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Roscherite | 
  R070308 | 
  Ca2Mn2+5Be4(PO4)6(OH)4·6H2O | 
  James Shigley  | 
  Black Mountain Quarry, Rumford, Oxford County, Maine, USA | 
  
           
   | 
   | 
   | Roscherite | 
  R130054 | 
  Ca2Mn2+5Be4(PO4)6(OH)4·6H2O | 
  Thomas A. Loomis TL-21 | 
  Tip Top mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Roselite | 
  R100191 | 
  Ca2Co(AsO4)2·2H2O | 
  University of Arizona Mineral Museum 3019 | 
  Schneeberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Roselite | 
  R150066 | 
  Ca2Co(AsO4)2·2H2O | 
  William Pinch  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Rosemaryite | 
  R140519 | 
  ◻NaMn2+(Fe3+Al)(PO4)3 | 
  Rock Currier  | 
  Buranga pegmatite, Gatumba District, Western Province, Rwanda | 
  
           
   | 
   | 
   | Rosiaite | 
  R070384 | 
  PbSb2O6 | 
  Michael Scott S104750 | 
  Le Cetine mine, Chiusdino, Tuscany, Italy | 
  
           
   | 
   | 
   | Rossmanite | 
  R070680 | 
  ◻(Al2Li)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Michael Scott S102401 | 
  Rožná pegmatite, Žďár nad Sázavou, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic | 
  
           
   | 
   | 
   | Rossmanite | 
  R070702 | 
  ◻(Al2Li)Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Michael Scott S102402 | 
  Tanco Mine (Bernic Lake Mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada | 
  
           
   | 
   | 
   | Rostite | 
  R061001 | 
  Al(SO4)(OH)·5H2O | 
  Michael Scott S100383 | 
  Kladno, Bohmen, Czech Republic | 
  
           
   | 
   | 
   | Rouaite | 
  R080086 | 
  Cu2(NO3)(OH)3 | 
  William W. Pinch  | 
  Jachymov, Erzgebirge (Bohemia), Czech Republic | 
  
           
   | 
   | 
   | Roubaultite | 
  R080131 | 
  Cu2O2(UO2)3(CO3)2(OH)2·4H2O | 
  William W. Pinch  | 
  KOV mine, Kamoto, Shaba, Democratic Republic of Congo | 
  
           
   | 
   | 
   | Roweite | 
  R130073 | 
  Ca2Mn2+2B4O7(OH)6 | 
  Michael Scott S105794 | 
  Solongo B deposit, Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Roxbyite | 
  R070676 | 
  Cu9S5 | 
  Michael Scott S102407 | 
  Olympic Dam mine, Roxby Downs, South Australia, Australia | 
  
           
   | 
   | 
   | Rruffite | 
  R070431 | 
  Ca2Cu(AsO4)2·2H2O | 
  Bob Jenkins  | 
  Maria Catalina mine, Pampa Larga Mining District, Tierra Amarilla, Copiapo Province, Chile | 
  
           
   | 
   | 
   | Rruffite | 
  R141211 | 
  Ca2Cu(AsO4)2·2H2O | 
  Bob Jenkins  | 
  Jote mine, Pampa Larga District, Tierra Amarilla, Copiapo Province, Chile | 
  
           
   | 
   | 
   | Rubicline | 
  R070044 | 
  Rb(AlSi3O8) | 
  Michael Scott S105058 | 
  Vasin Myl'k Mount, Voron'l Tundry, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Rudenkoite | 
  R070048 | 
  Sr3Al3.5Si3.5O10(OH,O)8Cl2·H2O | 
  Michael Scott S105053 | 
  80 km SEE of Aldan, Yakutia, Russia | 
  
           
   | 
   | 
   | Rüdlingerite | 
  R220038 | 
  Mn2+2V5+As5+O7·2H2O | 
  Philippe Roth  | 
  Valletta mine, Canosio, Cuneo, Piedmont, Italy | 
  
           
   | 
   | 
   | Ruifrancoite | 
  R070049 | 
  Ca2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)6·4H2O | 
  Michael Scott S105056 | 
  Sapucaia mine, Galileia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Ruitenbergite | 
  R110152 | 
  Ca9B26O34(OH)24Cl4·13H2O | 
  Donald M Doell and Brian Roulston  | 
  Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Ruizite | 
  R060930 | 
  Ca2Mn3+2Si4O11(OH)4·2H2O | 
  Bob Jenkins  | 
  Christmas mine, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Ruizite | 
  R130787 | 
  Ca2Mn3+2Si4O11(OH)4·2H2O | 
  Marcus Origlieri  | 
  Wessels mine, Hotazel, Kalahari Manganese Field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Ruizite | 
  R140132 | 
  Ca2Mn3+2Si4O11(OH)4·2H2O | 
  Marcus Origlieri  | 
  Cornwall, Lebanon County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Russellite | 
  R060860 | 
  Bi2WO6 | 
  Michael Scott S100858 | 
  Castle-an-Dinas mine, Saint Columb Major, Cornwall, England | 
  
           
   | 
   | 
   | Rutherfordine | 
  R090018 | 
  (UO2)(CO3) | 
  James Shigley  | 
  El Sharana mine, South Alligator Valley, Northern Territory, Australia | 
  
           
   | 
   | 
   | Rutherfordine | 
  R090017 | 
  (UO2)(CO3) | 
  William W. Pinch  | 
  Musonoi Mine, Kolwezi, Katanga, Congo | 
  
           
   | 
   | 
   | Rutherfordine | 
  R100018 | 
  (UO2)(CO3) | 
  William Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Rutherfordine | 
  R110154 | 
  (UO2)(CO3) | 
  Luiz Menezes, from Vincent Bourgoin  | 
  Shinkolobwe mine, Zaire | 
  
           
   | 
   | 
   | Rutile | 
  R040049 | 
  TiO2 | 
  University of Arizona Mineral Museum 8286 | 
  Graves Mountain, Lincoln County, Georgia, USA | 
  
           
   | 
   | 
   | Rutile | 
  R050031 | 
  TiO2 | 
  University of Arizona Mineral Museum 3776 | 
  Chester City, Pennsylvannia, USA | 
  
           
   | 
   | 
   | Rutile | 
  R050417 | 
  TiO2 | 
  Marcus Origlieri  | 
  Champion mine, Mono County, California, USA | 
  
           
   | 
   | 
   | Rutile | 
  R060493 | 
  TiO2 | 
  Michael Scott S100359 | 
  Diamantina, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Rutile | 
  R060745 | 
  TiO2 | 
  Herb Obodda 091 | 
  Zagi Mountain near Hammedabad, Knaffor Dehri, NW Frontier Provence, Pakistan | 
  
           
   | 
   | 
   | Rutile | 
  R110109 | 
  TiO2 | 
  Gemological Institute of America 10-12-2010-14 | 
  Synthetic | 
  
           
   | 
   | 
   | Rutile | 
  R120008 | 
  TiO2 | 
  Rob Lavinsky  | 
  Golconda, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Rynersonite | 
  R080064 | 
  CaTa2O6 | 
  Michael Scott S102384 | 
  Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo Department, Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar | 
  
           
   | 
   | 
   | Rynersonite | 
  R080063 | 
  CaTa2O6 | 
  Michael Scott S102386 | 
  Brown Derby mine, Ohio City, Quartz Creek District, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Sabinaite | 
  R110174 | 
  Na4TiZr2O4(CO3)4 | 
  Donald Doell  | 
  Mont St-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Sabugalite | 
  R080028 | 
  HAl(UO2)4(PO4)4·16H2O | 
  Mark N. Feinglos  | 
  Arcu su Linnarbu, Capoterra, Cagliari, Sardinia, Italy | 
  
           
   | 
   | 
   | Sadanagaite | 
  R080070 | 
  NaCa2(Mg3Al2)(Si5Al3)O22(OH)2 | 
  Michael Scott S102448 | 
  Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia | 
  
           
   | 
   | 
   | Safflorite | 
  R070611 | 
  CoAs2 | 
   James Shigley | 
  Timiskaming County, Ontario, Canada | 
  
           
   | 
   | 
   | Safflorite | 
  R100115 | 
  CoAs2 | 
  Robert Woodside  | 
  Hudson Bay (Rustex) mine, Gowganda area, Ontario, Canada | 
  
           
   | 
   | 
   | Sahamalite-(Ce) | 
  R080043 | 
  Ce2Mg(CO3)4 | 
  Michael Scott S100443 | 
  Mountain Pass Mine (Sulfide Queen mine; Bastnaesite deposit; Mountain Pass carbonatite), Ivanpah, Mountain Pass District, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Sahlinite | 
  R130115 | 
  Pb14O9(AsO4)2Cl4 | 
  Rock Currier  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Sainfeldite | 
  R060273 | 
  Ca5(AsO4)2(AsO3OH)2·4H2O | 
  Michael Scott S100168 | 
  Grube Gift (Gift mine), Sainte Marie-aux-mines, Alsace, France | 
  
           
   | 
   | 
   | Sakhaite | 
  R060637 | 
  Ca48Mg16(BO3)32(CO3)16·2(H2O,HCl) | 
  Michael Scott S101010 | 
  Titovskoe, Sakha (Yakutia) Republic, Russia | 
  
           
   | 
   | 
   | Sakhaite | 
  R060897 | 
  Ca48Mg16(BO3)32(CO3)16·2(H2O,HCl) | 
  Michael Scott S100977 | 
  Solongo, Buryatiya, Transbaikal, Russia | 
  
           
   | 
   | 
   | Salammoniac | 
  R060521 | 
  (NH4)Cl | 
  Michael Scott S100100 | 
  Tien-Shan Mountains, Tadzhikistan, U.S.S.R | 
  
           
   | 
   | 
   | Salammoniac | 
  R061022 | 
  (NH4)Cl | 
  Michael Scott S100394 | 
  Schoeller mine, Kladno, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Saléeite | 
  R070618 | 
  Mg(UO2)2(PO4)2(H2O)10 | 
  James Shigley  | 
  Shinkolobwe mine, near Kolweze, Katanga, Zaire | 
  
           
   | 
   | 
   | Salesite | 
  R050170 | 
  Cu(IO3)(OH) | 
  Marcus Origlieri  | 
  Chuquicamata, Chile | 
  
           
   | 
   | 
   | Saltonseaite | 
  R120131 | 
  K3NaMnCl6 | 
  Anthony R. Kampf  | 
  Salton Sea, Imperial County, California, USA | 
  
           
   | 
   | 
   | Samarskite-(Y) | 
  R070540 | 
  YFe3+Nb2O8 | 
  James Shigley  | 
  Fremont County, Colorado, USA | 
  
           
   | 
   | 
   | Sampleite | 
  R050572 | 
  NaCaCu5(PO4)4Cl·5H2O | 
  University of Arizona Mineral Museum 10237 | 
  Chuquicamata pit, Chuquicamata, Chile | 
  
           
   | 
   | 
   | Sampleite | 
  R070018 | 
  NaCaCu5(PO4)4Cl·5H2O | 
  Mark Mauthner 3306 | 
  Endeavour 26 Open Cut, Northparkes mine, Goonumbla, NSW, Australia | 
  
           
   | 
   | 
   | Sampleite | 
  R090072 | 
  NaCaCu5(PO4)4Cl·5H2O | 
  Bob Jenkins  | 
  Engaño Feliz mine, Las Pintadas dist., Tierra Amarilla, Copiapó Province, Chile | 
  
           
   | 
   | 
   | Samsonite | 
  R060998 | 
  Ag4MnSb2S6 | 
  Michael Scott S101393 | 
  Samson Vein, St. Andreasberg, Harz, Germany | 
  
           
   | 
   | 
   | Samuelsonite | 
  R080081 | 
  Ca9Mn2+4Al2(PO4)10(OH)2 | 
  Michael Scott S103696 | 
  Buranga pegmatite,  Gatumba District,  Gisenyi Province,  Rwanda | 
  
           
   | 
   | 
   | Sanbornite | 
  R050001 | 
  BaSi2O5 | 
  University of Arizona Mineral Museum 9044 | 
  Empire #1 mine, Fresno County, California, USA | 
  
           
   | 
   | 
   | Sanbornite | 
  R060489 | 
  BaSi2O5 | 
  Michael Scott S100272 | 
  Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Saneroite | 
  R060488 | 
  NaMn2+5[Si5O14(OH)](VO3)(OH) | 
  Michael Scott S100108 | 
  Molinello mine, Val Graveglia (Graveglia Valley), Ne, Genova, Liguria, Italy | 
  
           
   | 
   | 
   | Sanidine | 
  X050140 | 
  K(AlSi3O8) | 
  G.R. Rossman 1607 | 
  Volkesfeld, Eifel, Germany | 
  
           
   | 
   | 
   | Sanidine | 
  R060313 | 
  K(AlSi3O8) | 
  Herb Obodda 016 | 
  Eifel Mountains, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Santaclaraite | 
  R060346 | 
  CaMn2+4Si5O14(OH)2·H2O | 
  Michael Scott S100212 | 
  Pennsylvania mine, Santa Clara County, California, USA | 
  
           
   | 
   | 
   | Santafeite | 
  R080054 | 
  (Ca,Sr,Na)3(Mn2+,Fe3+)2Mn4+2(VO4)4(OH,O)5·2H2O | 
  James Shigley  | 
  Marble Canyon, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Sapphirine | 
  R060073 | 
  Mg4(Mg3Al9)O4[Si3Al9O36] | 
  Marcus Origlieri  | 
  Androy, Madagascar | 
  
           
   | 
   | 
   | Sapphirine | 
  R060556 | 
  Mg4(Mg3Al9)O4[Si3Al9O36] | 
  Gemological Institute of America 15 | 
  unknown | 
  
           
   | 
   | 
   | Sapphirine | 
  R100135 | 
  Mg4(Mg3Al9)O4[Si3Al9O36] | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Sapphirine | 
  R100143 | 
  Mg4(Mg3Al9)O4[Si3Al9O36] | 
  William W. Pinch  | 
  Unknown | 
  
           
   | 
   | 
   | Sarabauite | 
  R060495 | 
  Sb4S6·CaSb6O10 | 
  Michael Scott S100032 | 
  Sarabau mine, near Bau, Sarawak, Borneo (Malaysia) | 
  
           
   | 
   | 
   | Sarcolite | 
  R070688 | 
  Na4Ca12Al8Si12O46(SiO4,PO4)(OH,H2O)4(CO3,Cl) | 
  Michael Scott S101470 | 
  Monte Somma, Vesuvius, Italy | 
  
           
   | 
   | 
   | Sarcopside | 
  R070553 | 
  Fe2+3(PO4)2 | 
  James Shigley  | 
  Bull Moose mine, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Sarkinite | 
  R080065 | 
  Mn2+2(AsO4)(OH) | 
  Michael Scott S103709 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Sartorite | 
  R130104 | 
  PbAs2S4 | 
  Donald Doell (Small piece), Rock Currier (Large piece)  | 
  Lengenbach Quarry, Im Feld, Binn Valley, Wallis, Switzerland | 
  
           
   | 
   | 
   | Sassolite | 
  R060224 | 
  B(OH)3 | 
  Marcus Origlieri  | 
  Tuscany, Italy | 
  
           
   | 
   | 
   | Sassolite | 
  R060496 | 
  B(OH)3 | 
  Michael Scott S100059 | 
  Upper Biddy mine, near Ryan, Death Valley, Inyo County, California, USA | 
  
           
   | 
   | 
   | Satterlyite | 
  R060810 | 
  (Fe2+,Mg,Fe3+)12(PO3OH)(PO4)5(OH,O)6 | 
  Michael Scott S101167 | 
  Big Fish River Area, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Sazhinite-(La) | 
  R120053 | 
  Na3LaSi6O15·2H2O | 
  William W. Pinch  | 
  Aris quarry, near Windhoek, Namibia | 
  
           
   | 
   | 
   | Scainiite | 
  R100085 | 
  Pb14Sb30S54O5 | 
  William W Pinch  | 
  Dúbrava, Northern Low Tatra Mts, Žilina Region, Slovakia | 
  
           
   | 
   | 
   | Scawtite | 
  R060340 | 
  Ca7(Si3O9)2(CO3)·2H2O | 
  Michael Scott S100203 | 
  Crestmore Quarry, near Riverside, Riverside County, California, USA | 
  
           
   | 
   | 
   | Schafarzikite | 
  R120039 | 
  Fe2+(Sb3+)2O4 | 
  Bob Jenkins  | 
  Pernek, Slovakia | 
  
           
   | 
   | 
   | Schaurteite | 
  R120054 | 
  Ca3Ge(SO4)2(OH)6·3H2O | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Schaurteite | 
  R120104 | 
  Ca3Ge(SO4)2(OH)6·3H2O | 
  Marcus Origlieri  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Scheelite | 
  R040172 | 
  Ca(WO4) | 
  University of Arizona Mineral Museum 5975 | 
  Sonora, Mexico | 
  
           
   | 
   | 
   | Scheelite | 
  R040173 | 
  Ca(WO4) | 
  University of Arizona Mineral Museum 9487 | 
  Santa Cruz, Sonora, Mexico | 
  
           
   | 
   | 
   | Scheelite | 
  R050543 | 
  Ca(WO4) | 
  University of Arizona Mineral Museum 9983 | 
  Nacozari, Sonora, Mexico | 
  
           
   | 
   | 
   | Scheelite | 
  R060417 | 
  Ca(WO4) | 
  Herb Obodda 089 | 
  Karmang Valley, near Khapalu, Baltistan, Pakistan | 
  
           
   | 
   | 
   | Scheelite | 
  R150130 | 
  Ca(WO4) | 
  Mark N. Feinglos  | 
  Tsumeb mine, Tsumeb, Otjikoto Region, Namibia | 
  
           
   | 
   | 
   | Schiavinatoite | 
  R090010 | 
  Nb(BO4) | 
  William W. Pinch  | 
  Antsongombato, south of Betafo, south of Mahaiz, Madagascar | 
  
           
   | 
   | 
   | Schieffelinite | 
  R140572 | 
  Pb10Te6+6O20(OH)14(SO4)(H2O)5 | 
  Rock Currier  | 
  Joe mine, Tombstone District, Tombstone Hills, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Schizolite | 
  R120109 | 
  NaCaMnSi3O8(OH) | 
  Marcus Origlieri  | 
  Wessels mine, Kalahari Manganese Field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Schmiederite | 
  R100089 | 
  Cu2Pb2(Se4+O3)(Se6+O4)(OH)4 | 
  William W. Pinch  | 
  El Condor mine, Los Llantenes, Sierra de Cacheuta, La Rioja Province, Argentina | 
  
           
   | 
   | 
   | Schmitterite | 
  R060524 | 
  (UO2)(Te4+O3) | 
  Michael Scott S100201 | 
  Moctezuma mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Schneiderhöhnite | 
  R050215 | 
  Fe2+Fe3+3As3+5O13 | 
  Marcus Origlieri  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Schneiderhöhnite | 
  R061004 | 
  Fe2+Fe3+3As3+5O13 | 
  William W. Pinch  | 
  Urucum mine, Galileia, Minas Gerias, Brazil | 
  
           
   | 
   | 
   | Schoepite | 
  R080082 | 
  (UO2)4O(OH)6(H2O)6 | 
  Michael Scott S103736 | 
  Musonoi Mine, Kolwezi, Western area, Katanga Copper Zone, Katanga (Shaba), Congo (Zaïre) | 
  
           
   | 
   | 
   | Schoepite | 
  R100188 | 
  (UO2)4O(OH)6(H2O)6 | 
  William W Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Scholzite | 
  R050238 | 
  CaZn2(PO4)2·2H2O | 
  Marcus Origlieri  | 
  near Blinman, South Australia, Australia | 
  
           
   | 
   | 
   | Scholzite | 
  R080068 | 
  CaZn2(PO4)2·2H2O | 
  Tom Loomis TL-42 | 
  Tip Top mine, Custer Country, South Dakota, USA | 
  
           
   | 
   | 
   | Schorl | 
  X050141 | 
  NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  G.R. Rossman 794 | 
  Cahuilla Mountain, Riverside County, California, USA | 
  
           
   | 
   | 
   | Schorl | 
  X050142 | 
  NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  G.R. Rossman 818 | 
  Blue Lady mine, Chihuahua Valley, San Diego County, California, USA | 
  
           
   | 
   | 
   | Schorl | 
  R050304 | 
  NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 
  Eugene Schlepp  | 
  Erongo Mountains, Namibia | 
  
           
   | 
   | 
   | Schorlomite | 
  R060125 | 
  Ca3Ti2(SiFe3+2)O12 | 
  University of Arizona Mineral Museum 2151 | 
  Magnet Cove, Arkansas, USA | 
  
           
   | 
   | 
   | Schorlomite | 
  R060349 | 
  Ca3Ti2(SiFe3+2)O12 | 
  Marcus Origlieri  | 
  Sundsvall, Medelpad, Sweden | 
  
           
   | 
   | 
   | Schorlomite | 
  R140772 | 
  Ca3Ti2(SiFe3+2)O12 | 
  Ch. and H. Schäfer  | 
  Graulay, Hillesheim, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Schreibersite | 
  R070239 | 
  (Fe,Ni)3P | 
  Michael Scott S103722 | 
  Sao Juliao de Moreira meteorite, Ponte de Lima, Viana do Castelo district, Portugal | 
  
           
   | 
   | 
   | Schröckingerite | 
  R050565 | 
  NaCa3(UO2)(SO4)(CO3)3F·10H2O | 
  Dave Bunk Minerals  | 
  Lost Creek, Sweetwater County, Wyoming, USA | 
  
           
   | 
   | 
   | Schröckingerite | 
  R060232 | 
  NaCa3(UO2)(SO4)(CO3)3F·10H2O | 
  Michael Scott S100230 | 
  Atomic King #2 mine, Cane Wash, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Schuetteite | 
  R080079 | 
  Hg3O2(SO4) | 
  Michael Scott S103725 | 
  Oceanic mine, Adelaida District, San Luis Obispo County, California, USA | 
  
           
   | 
   | 
   | Schuilingite-(Nd) | 
  R100063 | 
  CuPbNd(CO3)3(OH)·1.5H2O | 
  William W Pinch  | 
  Kasompi, 70 km. west of Kambove, Katanga, Congo | 
  
           
   | 
   | 
   | Schulenbergite | 
  R060992 | 
  (Cu,Zn)7(SO4)2(OH)10·3H2O | 
  Peter Megaw  | 
  Platosa mine, Bermejillo, Mapimi Municipality, Mexico | 
  
           
   | 
   | 
   | Schultenite | 
  R050584 | 
  Pb(AsO3OH) | 
  University of Arizona Mineral Museum 14754 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Schumacherite | 
  R060759 | 
  Bi3O(VO4)2(OH) | 
  Michael Scott S101217 | 
  Pucher shaft, Schneeberg district, Sachsen, Germany | 
  
           
   | 
   | 
   | Schwartzembergite | 
  R050159 | 
  Pb2+5H2I3+O6Cl3 | 
  Jim McGlasson  | 
  Ponderosa mine, Sierra Gorda, Antofagasta, Chile | 
  
           
   | 
   | 
   | Schwartzembergite | 
  R070429 | 
  Pb2+5H2I3+O6Cl3 | 
  Bob Jenkins  | 
  Venado mine, Copiapo, Chile | 
  
           
   | 
   | 
   | Schwertmannite | 
  R220002 | 
  Fe3+16O16(OH)9.6(SO4)3.2·10H2O | 
  Annika Parviainen  | 
  A ditch in the Tinto river basin, SW Spain | 
  
           
   | 
   | 
   | Scolecite | 
  R040111 | 
  Ca(Si3Al2)O10·3H2O | 
  National Museums of Canada 060318 | 
  Bombay-Poona area, Mahahashtra Province, India | 
  
           
   | 
   | 
   | Scolecite | 
  R050083 | 
  Ca(Si3Al2)O10·3H2O | 
  Rock Currier  | 
  near Ahmednagar, Maharashtra, India | 
  
           
   | 
   | 
   | Scorodite | 
  X060014 | 
  Fe3+(AsO4)·2H2O | 
  University of Arizona Mineral Museum 11085 | 
  Trincheras, Sonora, Mexico | 
  
           
   | 
   | 
   | Scorodite | 
  R050465 | 
  Fe3+(AsO4)·2H2O | 
  University of Arizona Mineral Museum 2449 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Scorzalite | 
  R140558 | 
  Fe2+Al2(PO4)2(OH)2 | 
  Dr. Jürgen Wachsmuth  | 
  Hålsjöberg, Torsby, Värmland, Sweden | 
  
           
   | 
   | 
   | Scotlandite | 
  R060764 | 
  Pb(S4+O3) | 
  Michael Scott S101365 | 
  Lady Anne Hopetoun shaft. Leadhills, Lanarkshire, Scotland | 
  
           
   | 
   | 
   | Scotlandite | 
  R100043 | 
  Pb(S4+O3) | 
  William W. Pinch  | 
  Grand Reef mine, Klondyke, Aravaipa District, Graham County, Arizona, USA | 
  
           
   | 
   | 
   | Scottyite | 
  R120077 | 
  BaCu2Si2O7 | 
  William W. Pinch and Marcus Origlieri  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Scottyite | 
  R141116 | 
  BaCu2Si2O7 | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Scottyite | 
  R150111 | 
  BaCu2Si2O7 | 
  Yan Chen and Shouhua Feng  | 
  Synthetic | 
  
           
   | 
   | 
   | Scottyite | 
  R160006 | 
  BaCu2Si2O7 | 
  Bill Pinch  | 
  Graulay Quarry, Eifel, Germany | 
  
           
   | 
   | 
   | Scrutinyite | 
  R080018 | 
  PbO2 | 
  William W. Pinch  | 
  Snake Pit, lower Mex-Tex mine, Hansonburg District, Socorro County, New Mexico, USA | 
  
           
   | 
   | 
   | Searlesite | 
  R060076 | 
  NaBSi2O5(OH)2 | 
  Dave Bunk Minerals  | 
  near Cave Spring, Esperalda County, Nevada, USA | 
  
           
   | 
   | 
   | Seeligerite | 
  R060714 | 
  Pb3(IO4)Cl3 | 
  Bob Jenkins  | 
  San Francisco mine, Sierra Gorda, Chile | 
  
           
   | 
   | 
   | Segelerite | 
  R080127 | 
  CaMgFe3+(PO4)2(OH)·4H2O | 
  Thomas A. Loomis TL-41 | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Segerstromite | 
  R130753 | 
  Ca3(As5+O4)2[As3+(OH)3]2 | 
  Bob Jenkins  | 
  Cobriza mine, Sacramento District, Copiapó Province, Chile | 
  
           
   | 
   | 
   | Segnitite | 
  R060342 | 
  PbFe3+3(AsO4)(AsO3OH)(OH)6 | 
  Michael Scott S100051 | 
  Kintore Opencut, Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Seidozerite | 
  R130032 | 
  Na2Zr2Na2MnTi(Si2O7)2O2F2 | 
  Don Doell DD 13-06 | 
  Suoluaiv Mountain, Lovozero alkaline massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Sekaninaite | 
  R061053 | 
  Fe2+2Al4Si5O18 | 
  Royal Ontario Museum M52513 | 
  Dolni Borg, Czechoslovakia | 
  
           
   | 
   | 
   | Selenium | 
  R050656 | 
  Se | 
  University of Arizona Mineral Museum 6735 | 
  Poison Creek, Valencia County, New Mexico, USA | 
  
           
   | 
   | 
   | Selenium | 
  R060137 | 
  Se | 
  University of Arizona Mineral Museum 11101 | 
  Grants Uranium District, Valencia County, New Mexico, USA | 
  
           
   | 
   | 
   | Seligmannite | 
  R100189 | 
  CuPbAsS3 | 
  William W. Pinch  | 
  Palomo mine, Huancavelica Department, Peru | 
  
           
   | 
   | 
   | Seligmannite | 
  R090037 | 
  CuPbAsS3 | 
  Marcus Origlieri  | 
  Quiruvilca, La Libertad Department, Peru | 
  
           
   | 
   | 
   | Semseyite | 
  R080087 | 
  Pb9Sb8S21 | 
  Michael Scott S106088 | 
  Herja Mine (Kisbánya), Baia Mare (Nagybánya), Maramures County, Romania | 
  
           
   | 
   | 
   | Senaite | 
  R060644 | 
  Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 | 
  Michael Scott S100816 | 
  Fazenda Guariba, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Senandorite | 
  R060673 | 
  AgPbSb3S6 | 
  Michael Scott S101092, Rock Currier  | 
  San Jose mine, Oruro, Bolivia | 
  
           
   | 
   | 
   | Senandorite | 
  R070718 | 
  AgPbSb3S6 | 
  Michael Scott S104365 | 
  Bear Basin Mines, Lennox Creek, Bear Basin, North Bend, King County, Washington, USA | 
  
           
   | 
   | 
   | Senandorite | 
  R100212 | 
  AgPbSb3S6 | 
  Mark N. Feinglos  | 
  Felsobanya, Romania | 
  
           
   | 
   | 
   | Senarmontite | 
  R060075 | 
  Sb2O3 | 
  University of Arizona Mineral Museum 9676 | 
  Djebel Haminate mine, Constantine, Algeria | 
  
           
   | 
   | 
   | Senarmontite | 
  R060002 | 
  Sb2O3 | 
  Ken Roberts  | 
  Chenlong, Xin Yi County, Guizhou Province, China | 
  
           
   | 
   | 
   | Senegalite | 
  R050239 | 
  Al2(PO4)(OH)3·H2O | 
  Marcus Origlieri  | 
  Kourondicko iron ore (magnetite) deposit, Faleme River Basin, Senegal | 
  
           
   | 
   | 
   | Sengierite | 
  R070520 | 
  Cu2(UO2)2(VO4)2(OH)2·6H2O | 
  James Shigley  | 
  Cole Shaft, Bisbee, Mule Mountains, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Sengierite | 
  R100186 | 
  Cu2(UO2)2(VO4)2(OH)2·6H2O | 
  William W Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Sepiolite | 
  R070311 | 
  Mg4Si6O15(OH)2·6H2O | 
  James Shigley  | 
  Miller Quartz, near Santa Cruz, Santa Cruz County, California, USA | 
  
           
   | 
   | 
   | Serandite | 
  R040056 | 
  NaMn2+2Si3O8(OH) | 
  Bob Downs  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Serandite | 
  R050261 | 
  NaMn2+2Si3O8(OH) | 
  Marcus Origlieri  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Serendibite | 
  R070622 | 
  Ca4[Mg6Al6]O4[Si6B3Al3O36] | 
  Shinichi Kihara  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Serendibite | 
  R070633 | 
  Ca4[Mg6Al6]O4[Si6B3Al3O36] | 
  www.multicolour.com  | 
  Burma | 
  
           
   | 
   | 
   | Serendibite | 
  R120069 | 
  Ca4[Mg6Al6]O4[Si6B3Al3O36] | 
  William W. Pinch  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Serpierite | 
  R060475 | 
  Ca(Cu,Zn)4(SO4)2(OH)6·3H2O | 
  Michael Scott S100183 | 
  Oh mine, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Serrabrancaite | 
  R080077 | 
  Mn(PO4)·H2O | 
  Michael Scott S103673 | 
  Serra Branca pegmatite, Pedra Lavrada, Paraíba; Northeast, Brazil | 
  
           
   | 
   | 
   | Sewardite | 
  R060720 | 
  CaFe3+2(AsO4)2(OH)2 | 
  Bob Jenkins  | 
  Las Animas mine, La Mur, Sonora, Mexico | 
  
           
   | 
   | 
   | Sewardite | 
  R141206 | 
  CaFe3+2(AsO4)2(OH)2 | 
  Shields Flynn  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Shandite | 
  R070090 | 
  Ni3Pb2S2 | 
  Michael Scott S105060 | 
  Nickel Reward mine, Tasmania, Australia | 
  
           
   | 
   | 
   | Shannonite | 
  R070501 | 
  Pb2O(CO3) | 
  Bob Jenkins  | 
  Tonopah-Belmont mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Shattuckite | 
  X060019 | 
  Cu5(SiO3)4(OH)2 | 
  University of Arizona Mineral Museum 1036 | 
  Clifton, Arizona, USA | 
  
           
   | 
   | 
   | Shattuckite | 
  R050133 | 
  Cu5(SiO3)4(OH)2 | 
  University of Arizona Mineral Museum 5524 | 
  Ajo, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Shattuckite | 
  R061073 | 
  Cu5(SiO3)4(OH)2 | 
  Bob Jenkins  | 
  Pinky mine, North of Copiapo, Chile | 
  
           
   | 
   | 
   | Shcherbakovite | 
  R080078 | 
  K2NaTi2O(OH)Si4O12 | 
  Michael Scott S103629 | 
  Walgidee Hills pegmatite, Kimberley, Western Australia, Australia | 
  
           
   | 
   | 
   | Shibkovite | 
  R080040 | 
  K2Ca2(Zn3Si12)O30 | 
  Michael Scott S103624 | 
  Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan | 
  
           
   | 
   | 
   | Shigaite | 
  R080090 | 
  Mn6Al3(OH)18[Na(H2O)6](SO4)2·6H2O | 
  Michael Scott S103622 | 
  Ioi Mine, Shiga Prefecture, Kinki Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Shilovite | 
  R060941 | 
  Cu(NH3)4(NO3)2 | 
  Bob Jenkins  | 
  mine floor near explosive storage, Quebrada Blanca mine, Iquique, Chile | 
  
           
   | 
   | 
   | Shirozulite | 
  R070135 | 
  KMn2+3(Si3Al)O10(OH)2 | 
  Michael Scott S105062 | 
  Bikkulovskoe deposit, south Urals, Russia | 
  
           
   | 
   | 
   | Shkatulkalite | 
  R110193 | 
  Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3 | 
  Donald Doell  | 
  Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Shomiokite-(Y) | 
  R060670 | 
  Na3Y(CO3)3·3H2O | 
  Michael Scott S100955 | 
  Alluaiv Mountain, Lovozero massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Shortite | 
  R040184 | 
  Na2Ca2(CO3)3 | 
  University of Arizona Mineral Museum 1750 | 
  Green River, Wyoming, USA | 
  
           
   | 
   | 
   | Shortite | 
  R050248 | 
  Na2Ca2(CO3)3 | 
  Marcus Origlieri  | 
  Stauffer mine, Green River, Wyoming, USA | 
  
           
   | 
   | 
   | Shuiskite-(Mg) | 
  R070109 | 
  Ca2MgCr2(Si2O7)(SiO4)(OH)2·H2O | 
  Bob Jenkins  | 
  Sarnay, Ural, Russia | 
  
           
   | 
   | 
   | Si3N4-β | 
  R120129 | 
   | 
  H.C. Stark  | 
  Synthetic | 
  
           
   | 
   | 
   | Siderazot | 
  R060343 | 
  Fe3N1.33 | 
  Michael Scott S100027 | 
  Ottaviano, Mount Vesuvius, Italy | 
  
           
   | 
   | 
   | Siderite | 
  R040034 | 
  Fe(CO3) | 
  University of Arizona Mineral Museum 7584 | 
  Pribram, Czech Republic | 
  
           
   | 
   | 
   | Siderite | 
  X050143 | 
  Fe(CO3) | 
  Caltech  | 
  Invigtut, Greenland | 
  
           
   | 
   | 
   | Siderite | 
  X050144 | 
  Fe(CO3) | 
  CIT 3247 | 
  near Rio de Janeiro, Brazil | 
  
           
   | 
   | 
   | Siderite | 
  X050145 | 
  Fe(CO3) | 
  Caltech 40298 | 
   | 
  
           
   | 
   | 
   | Siderite | 
  R050262 | 
  Fe(CO3) | 
  Marcus Origlieri  | 
  Panasqueira mine, Barroca Grande, Beira Baixa, Portugal | 
  
           
   | 
   | 
   | Siderite | 
  R050349 | 
  Fe(CO3) | 
  California Institute of Technology  | 
  Litchfield County, Connecticut, USA | 
  
           
   | 
   | 
   | Sidwillite | 
  R080047 | 
  MoO3·2H2O | 
  Joe Marty JM-5110 | 
  Freedom No. 2 mine, Marysvale District (Marysvale Uranium area), Piute County, Utah, USA | 
  
           
   | 
   | 
   | Sidwillite | 
  R210025 | 
  MoO3·2H2O | 
  Jim McGlasson  | 
  Cookes Peak, Cookes Range, Luna County, New Mexico, USA | 
  
           
   | 
   | 
   | Siegenite | 
  R050092 | 
  CoNi2S4 | 
  Rock Currier  | 
  Bunker Hill mine, Jasper County, Missouri, USA (note that some people think this may be incorrect) | 
  
           
   | 
   | 
   | Siegenite | 
  R060502 | 
  CoNi2S4 | 
  Michael Scott S100057 | 
  Magmont mine, Viburnum Trend Lead Belt, southeastern Missouri, USA | 
  
           
   | 
   | 
   | Siegenite | 
  R070252 | 
  CoNi2S4 | 
  Michael Scott S105567 | 
  Gruge Viktoria Musen, Siegen, Siegerland, North Rhine-Westphalia, Germany | 
  
           
   | 
   | 
   | Sieleckiite | 
  R080035 | 
  Cu3Al4(PO4)2(OH)12·2H2O | 
  Michael Scott S102696 | 
  Mount Oxide Copper mine, Mt Isa, Mt Isa - Cloncurry area, Queensland, Australia | 
  
           
   | 
   | 
   | Sigloite | 
  R050576 | 
  Fe3+Al2(PO4)2(OH)3·7H2O | 
  University of Arizona Mineral Museum 12574 | 
  Viloco, Bolivia | 
  
           
   | 
   | 
   | Silicon | 
  R050145 | 
  Si | 
  Gerry Gibbs  | 
  synthetic from Dupont | 
  
           
   | 
   | 
   | Sillimanite | 
  R050601 | 
  Al2SiO5 | 
  Bill Larson  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Sillimanite | 
  R060080 | 
  Al2SiO5 | 
  Marcus Origlieri  | 
  Pein Pyit, Mogok, Burma | 
  
           
   | 
   | 
   | Sillimanite | 
  R060787 | 
  Al2SiO5 | 
  Michael Scott S101078 | 
  Moragahakanda, Sri Lanka | 
  
           
   | 
   | 
   | Sillimanite | 
  R100126 | 
  Al2SiO5 | 
  William W. Pinch  | 
  Orissa, India | 
  
           
   | 
   | 
   | Sillimanite | 
  R100127 | 
  Al2SiO5 | 
  William W. Pinch  | 
  Andana Tea Plantation, near Khawatha, Rathapura District, Sri Lanka | 
  
           
   | 
   | 
   | Silver | 
  R070416 | 
  Ag | 
  Royal Ontario Museum M16435 | 
  Frontier mine, South Lorrain, Timiskaming District, Ontario, Canada | 
  
           
   | 
   | 
   | Silver | 
  R070463 | 
  Ag | 
  Michael Scott S104479 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Silver | 
  R070754 | 
  Ag | 
  Michael Scott S103118 | 
  Capitol Mine, Haultain Township, Miller Lake area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada | 
  
           
   | 
   | 
   | Simmonsite | 
  R080069 | 
  Na2LiAlF6 | 
  Michael Scott S100646 | 
  Zapot mine, Zapot amazonite-topaz-zinnwaldite pegmatite, Gillis Range, Mineral County, Nevada, USA | 
  
           
   | 
   | 
   | Simonellite | 
  R130116 | 
  C19H24 | 
  Rock Currier  | 
  Fognano, Montepulliano, Tuscany, Italy | 
  
           
   | 
   | 
   | Simonkolleite | 
  R130117 | 
  Zn5(OH)8Cl2·H2O | 
  Rock Currier  | 
  Richelsdorf, Richelsdorf Mountains, Hesse, Germany | 
  
           
   | 
   | 
   | Simonkolleite | 
  R130616 | 
  Zn5(OH)8Cl2·H2O | 
  Danielle Sotomayor and Keith Wentz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Simplotite | 
  R060712 | 
  CaV4+4O9·5H2O | 
  Bob Jenkins  | 
  Uravan Mineral Belt, Colorado, USA | 
  
           
   | 
   | 
   | Simpsonite | 
  R050629 | 
  Al4Ta3O13(OH) | 
  Gemological Center  | 
  Equador, Rio Grande do Norte, Brazil | 
  
           
   | 
   | 
   | Simpsonite | 
  R061059 | 
  Al4Ta3O13(OH) | 
  Michael Scott S100986 | 
  Mt. Vasin-Myl'k, Voron'ya Tundra, Russia | 
  
           
   | 
   | 
   | Sincosite | 
  R060523 | 
  Ca(VO)2(PO4)2·4H2O | 
  Michael Scott S100045 | 
  Ross Hannibal mine, Lawrence County, South Dakota, USA | 
  
           
   | 
   | 
   | Sincosite | 
  R141154 | 
  Ca(VO)2(PO4)2·4H2O | 
  Tom Loomis  | 
  South Rasmussen Ridge mine, Caribou County, Idaho, USA | 
  
           
   | 
   | 
   | Sincosite | 
  R141155 | 
  Ca(VO)2(PO4)2·4H2O | 
  Tom Loomis  | 
  Ross Hannibal mine, Lawrence County, South Dakota, USA | 
  
           
   | 
   | 
   | Sinhalite | 
  R070621 | 
  MgAl(BO4) | 
  Shinichi Kihara  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Sinhalite | 
  R100132 | 
  MgAl(BO4) | 
  William W. Pinch  | 
  Ratnapura district, Sri Lanka | 
  
           
   | 
   | 
   | Sinhalite | 
  R100163 | 
  MgAl(BO4) | 
  William W. Pinch  | 
  Ratnapura, Sri Lanka | 
  
           
   | 
   | 
   | Sinkankasite | 
  R050466 | 
  Mn2+Al(PO3OH)2(OH)·6H2O | 
  University of Arizona Mineral Museum 12214 | 
  Barker mine, Keystone, South Dakota, USA | 
  
           
   | 
   | 
   | Sinoite | 
  R130011 | 
  Si2N2O | 
  Chi Ma  | 
  Zakłodzie meteorite, Zakłodzie, Poland | 
  
           
   | 
   | 
   | Sklodowskite | 
  R050445 | 
  Mg(UO2)2(SiO3OH)2·6H2O | 
  Peter Megaw  | 
  Mina las Animas, Santa Eulalia, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Skorpionite | 
  R060938 | 
  Ca3Zn2(PO4)2(CO3)(OH)2·H2O | 
  William W. Pinch  | 
  Skorpion Zinc deposit, west of Rosh Pinah, southern Namibia | 
  
           
   | 
   | 
   | Skutterudite | 
  R050593 | 
  CoAs3 | 
  Marcus Origlieri  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Skutterudite | 
  R070528 | 
  CoAs3 | 
  James Shigley  | 
  Cobalt, Coleman Township, Timiskamig County, Ontario, Canada | 
  
           
   | 
   | 
   | Skutterudite | 
  R100195 | 
  CoAs3 | 
  Royal Ontario Museum M19115 | 
  Skutterud, Norway | 
  
           
   | 
   | 
   | Slavíkite | 
  R080048 | 
  (H3O)3Mg6Fe15(SO4)21(OH)18·98H2O | 
  Michael Scott S101492 | 
  Mandat, Bohmen, Czech Republic | 
  
           
   | 
   | 
   | Smithite | 
  R070642 | 
  AgAsS2 | 
  Michael Scott S101941 | 
  Jas Roux, Pelvoux Mt., Valgaudemar, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France | 
  
           
   | 
   | 
   | Smithsonite | 
  R040035 | 
  Zn(CO3) | 
  University of Arizona Mineral Museum 3531 | 
  Mazapil, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Smithsonite | 
  R040051 | 
  Zn(CO3) | 
  University of Arizona Mineral Museum 12032 | 
  Berg Aukas mine, Grootfontein, Namibia | 
  
           
   | 
   | 
   | Sodalite | 
  R040141 | 
  Na4(Si3Al3)O12Cl | 
  University of Arizona Mineral Museum 9577 | 
  Princess Sodalite mine, Bancroft, Ontario, Canada | 
  
           
   | 
   | 
   | Sodalite | 
  X050146 | 
  Na4(Si3Al3)O12Cl | 
  G.R. Rossman 1945 | 
  Canada | 
  
           
   | 
   | 
   | Sodalite | 
  R060355 | 
  Na4(Si3Al3)O12Cl | 
  Herb Obodda 004 | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Sodalite | 
  R060354 | 
  Na4(Si3Al3)O12Cl | 
  Herb Obodda 043 | 
  Koksha Valley, Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Sodalite | 
  R060416 | 
  Na4(Si3Al3)O12Cl | 
  Herb Obodda 109 | 
  Koksha Valley, Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Sodalite | 
  R060405 | 
  Na4(Si3Al3)O12Cl | 
  Marcus Origlieri  | 
  Cerro Sapo, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Sodalite | 
  R060435 | 
  Na4(Si3Al3)O12Cl | 
  Herb Obodda  | 
  Koksha Valley, Badakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Sodalite | 
  R060436 | 
  Na4(Si3Al3)O12Cl | 
  Herb Obodda  | 
  Koksha Valley, Budakshan Province, Afghanistan | 
  
           
   | 
   | 
   | Soddyite | 
  R060361 | 
  (UO2)2(SiO4)(H2O)2 | 
  Michael Scott S100220 | 
  Musonoi Extension, near Kolwezi, Shaba Province, Zaire | 
  
           
   | 
   | 
   | Soddyite | 
  R060407 | 
  (UO2)2(SiO4)(H2O)2 | 
  American Museum of Natural History 30462 | 
  Palette, Northern Territory, Australia | 
  
           
   | 
   | 
   | Sofiite | 
  R070045 | 
  Zn2(Se4+O3)Cl2 | 
  Michael Scott S105063 | 
  Great Tolbachik Eruption (1975-6), Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Sogdianite | 
  R050648 | 
  KZr2Li3Si12O30 | 
  Dmitri Belakyovski  | 
  Dara-i-Pioz, Tadjikistan | 
  
           
   | 
   | 
   | Söhngeite | 
  R120117 | 
  Ga(OH)3 | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Sonolite | 
  R070752 | 
  Mn2+9(SiO4)4(OH)2 | 
  Michael Scott S102664 | 
  Fujii mine, Wakasa, Fukui Prefecture, Chubu Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Sonoraite | 
  R070745 | 
  Fe3+(Te4+O3)(OH)·H2O | 
  Michael Scott S102667 | 
  Tombstone, Tombstone District, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Sørensenite | 
  R070576 | 
  Na4Be2Sn(Si3O9)2·2H2O | 
  James Shigley  | 
  Kvanefjeld, Ilimaussaq, Narsaq, Kitaa, Greenland | 
  
           
   | 
   | 
   | Spangolite | 
  R060135 | 
  Cu6Al(SO4)(OH)12Cl·3H2O | 
  University of Arizona Mineral Museum 16329 | 
  Blanchard mine, Hansonburg District, Socorro County, New Mexico, USA | 
  
           
   | 
   | 
   | Spangolite | 
  R080023 | 
  Cu6Al(SO4)(OH)12Cl·3H2O | 
  William W. Pinch  | 
  Mex-Tex mine, Hansonberg Mining District, Bingham, Socorro County, New Mexico, USA | 
  
           
   | 
   | 
   | Spencerite | 
  R050581 | 
  Zn4(PO4)2(OH)2·3H2O | 
  University of Arizona Mineral Museum 6097 | 
  Salmo, British Columbia, Canada | 
  
           
   | 
   | 
   | Sperrylite | 
  R070214 | 
  PtAs2 | 
  Michael Scott S102676 | 
  Vermilion Mine, Denison Township, Sudbury District, Ontario, Canada | 
  
           
   | 
   | 
   | Spertiniite | 
  R100193 | 
  Cu(OH)2 | 
  Rob Lavinsky  | 
  Jeffrey mine, Asbestos, Shipton Township, Richmond County, Quebec, Canada | 
  
           
   | 
   | 
   | Spessartine | 
  R050063 | 
  Mn2+3Al2(SiO4)3 | 
  Rock Currier  | 
  Fujian Province, China | 
  
           
   | 
   | 
   | Spessartine | 
  X050191 | 
  Mn2+3Al2(SiO4)3 | 
  G.R. Rossman 61 | 
  Brazil | 
  
           
   | 
   | 
   | Spessartine | 
  X050147 | 
  Mn2+3Al2(SiO4)3 | 
  R2G 10 | 
  Rutherford #2 mine, Amelia, Virginia, USA | 
  
           
   | 
   | 
   | Spessartine | 
  X050148 | 
  Mn2+3Al2(SiO4)3 | 
  G.R. Rossman 72 | 
  Brazil | 
  
           
   | 
   | 
   | Spessartine | 
  X050149 | 
  Mn2+3Al2(SiO4)3 | 
  RSD 56163- 102 | 
  Ramona, California, USA | 
  
           
   | 
   | 
   | Spessartine | 
  R060177 | 
  Mn2+3Al2(SiO4)3 | 
  Rock Currier  | 
  Fujian Province, China | 
  
           
   | 
   | 
   | Spessartine | 
  R060279 | 
  Mn2+3Al2(SiO4)3 | 
  Herb Obodda 055 | 
  Shigar Valley, northeast of Skardu, Baltistan, Pakistan | 
  
           
   | 
   | 
   | Spessartine | 
  R060447 | 
  Mn2+3Al2(SiO4)3 | 
  Gemological Institute of America 4569 | 
  unknown | 
  
           
   | 
   | 
   | Spessartine | 
  R060451 | 
  Mn2+3Al2(SiO4)3 | 
  Gemological Institute of America 11817 | 
  unknown | 
  
           
   | 
   | 
   | Spessartine | 
  R080053 | 
  Mn2+3Al2(SiO4)3 | 
  www.multicolour.com  | 
  East Africa | 
  
           
   | 
   | 
   | Sphalerite | 
  R040136 | 
  ZnS | 
  University of Arizona Mineral Museum 13933 | 
  Hilltop mine, Paradise, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Sphalerite | 
  R050005 | 
  ZnS | 
  Eugene Schlepp  | 
  Taolin mine, Yueyang, Linxing, Hunan Province, China | 
  
           
   | 
   | 
   | Sphalerite | 
  R050140 | 
  ZnS | 
  Dave Bunk Minerals  | 
  Big Four mine, Summit County, Colorado, USA | 
  
           
   | 
   | 
   | Sphalerite | 
  R050237 | 
  ZnS | 
  Marcus Origlieri  | 
  Picos de Europa, Spain | 
  
           
   | 
   | 
   | Sphalerite | 
  X050150 | 
  ZnS | 
  Caltech  | 
  Pitcher, Oklahoma, USA | 
  
           
   | 
   | 
   | Sphalerite | 
  X050151 | 
  ZnS | 
  1460-1a  | 
   | 
  
           
   | 
   | 
   | Sphalerite | 
  R060005 | 
  ZnS | 
  University of Arizona Mineral Museum 3552 | 
  Trinacria mine, Lake Poopo, Oruro, Bolivia | 
  
           
   | 
   | 
   | Sphalerite | 
  R060636 | 
  ZnS | 
  Gemological Institute of America 12 | 
  unknown | 
  
           
   | 
   | 
   | Sphalerite | 
  R100145 | 
  ZnS | 
  William W. Pinch  | 
  Picos De Europa, Cantabria, Spain | 
  
           
   | 
   | 
   | Spherocobaltite | 
  R060497 | 
  Co(CO3) | 
  Michael Scott S100046 | 
  Bou Azzer, Anti Atlas Mountains, Morocco | 
  
           
   | 
   | 
   | Spherocobaltite | 
  R140338 | 
  Co(CO3) | 
  William Pinch  | 
  Kakanda, Shaba, Zaire | 
  
           
   | 
   | 
   | Spinel | 
  R050184 | 
  MgAl2O4 | 
  Marcus Origlieri  | 
  Pein Pyit, Mogok, Burma | 
  
           
   | 
   | 
   | Spinel | 
  R050259 | 
  MgAl2O4 | 
  Marcus Origlieri  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Spinel | 
  R050411 | 
  MgAl2O4 | 
  Marcus Origlieri  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Spinel | 
  R050392 | 
  MgAl2O4 | 
  Eric Van Valkenburg  | 
  Mogok, Burma | 
  
           
   | 
   | 
   | Spinel | 
  R060798 | 
  MgAl2O4 | 
  George Rossman CIT-1244 | 
  Onentura mine, Camaguey Province, Cuba | 
  
           
   | 
   | 
   | Spinel | 
  R060799 | 
  MgAl2O4 | 
  Marcus Origlieri  | 
  Aliabad, Hunza Valley, Pakistan | 
  
           
   | 
   | 
   | Spinel | 
  R070013 | 
  MgAl2O4 | 
  Michael Scott S104538 | 
  Bo Phloi, Kanchoutabori Province, Thailand | 
  
           
   | 
   | 
   | Spinel | 
  X080013 | 
  MgAl2O4 | 
  Gemological Institute of America 17612 | 
  Synthetic | 
  
           
   | 
   | 
   | Spinel | 
  X080014 | 
  MgAl2O4 | 
  Gemological Institute of America 14105 | 
  Synthetic | 
  
           
   | 
   | 
   | Spinel | 
  R100133 | 
  MgAl2O4 | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Spinel | 
  R110101 | 
  MgAl2O4 | 
  Gemological Institute of America 10-12-2010-6 | 
  Synthetic | 
  
           
   | 
   | 
   | Spinel | 
  R120116 | 
  MgAl2O4 | 
  Mark N. Feinglos  | 
  Bo Phloi, Kanfhoutabori Province,Thailand | 
  
           
   | 
   | 
   | Spiroffite | 
  R070744 | 
  Mn2+2Te4+3O8 | 
  Michael Scott S102660 | 
  Bambollita mine (Oriental mine), Moctezuma, Municipio de Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Spodumene | 
  R040050 | 
  LiAlSi2O6 | 
  University of Arizona Mineral Museum 12098 | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Spodumene | 
  X050152 | 
  LiAlSi2O6 | 
  G.R. Rossman 74 | 
  unknown | 
  
           
   | 
   | 
   | Spodumene | 
  X050153 | 
  LiAlSi2O6 | 
  G.R. Rossman 1658 | 
  Pala, California, USA | 
  
           
   | 
   | 
   | Spodumene | 
  X050154 | 
  LiAlSi2O6 | 
  P- 495 | 
  Brazil | 
  
           
   | 
   | 
   | Spodumene | 
  X050155 | 
  LiAlSi2O6 | 
  RD Shannon 62047- 78 | 
  Nuristan, Pakistan | 
  
           
   | 
   | 
   | Spodumene | 
  R050252 | 
  LiAlSi2O6 | 
  Marcus Origlieri  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Spodumene | 
  R060039 | 
  LiAlSi2O6 | 
  University of Arizona Mineral Museum 16926 | 
  Black Hills, South Dakota, USA | 
  
           
   | 
   | 
   | Spurrite | 
  R050236 | 
  Ca5(SiO4)2(CO3) | 
  Marcus Origlieri  | 
  South Sister Peak, Luna County, New Mexico, USA | 
  
           
   | 
   | 
   | Spurrite | 
  R070632 | 
  Ca5(SiO4)2(CO3) | 
  Shinichi Kihara  | 
  Huka, Okayama, Japan | 
  
           
   | 
   | 
   | Srebrodolskite | 
  R130096 | 
  Ca2Fe3+2O5 | 
  Rock Currier  | 
  Kopeisk, South Ural, Russia | 
  
           
   | 
   | 
   | Stanevansite | 
  R220011 | 
  Mg(C2H3O3)2·2H2O | 
  Warren Lazar  | 
  Western end of Pusch Ridge in the Santa Catalina Mountains, north of Tucson, Pima County, Arizona, USA | 
  
           
   | 
   | 
   | Stannite | 
  R050187 | 
  Cu2FeSnS4 | 
  Marcus Origlieri and George Guanghua Liu  | 
  Yaogangxian mine, Yizhang County, Hunan Province, China | 
  
           
   | 
   | 
   | Stannoidite | 
  R160066 | 
  Cu8(Fe,Zn)3Sn2S12 | 
  University of Arizona Mineral Museum 3169 | 
  Junction mine, Warren District, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Starkeyite | 
  R060321 | 
  Mg(SO4)·4H2O | 
  Michael Scott S100279 | 
  Epsom, Surrey, England | 
  
           
   | 
   | 
   | Starkeyite | 
  R070589 | 
  Mg(SO4)·4H2O | 
  James Shigley  | 
  Basque Lake, near Ashcroft, British Columbia, Canada | 
  
           
   | 
   | 
   | Staurolite | 
  R050079 | 
  Fe2+2Al9Si4O23(OH) | 
  Rock Currier  | 
  Keivy, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Staurolite | 
  R080120 | 
  Fe2+2Al9Si4O23(OH) | 
  Shinichi Kihara  | 
  Bahia, Brazil | 
  
           
   | 
   | 
   | Steacyite | 
  R120037 | 
  K0.3(Na,Ca)2ThSi8O20 | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada | 
  
           
   | 
   | 
   | Steacyite | 
  R130053 | 
  K0.3(Na,Ca)2ThSi8O20 | 
  Don Doell  | 
  Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Steenstrupine-(Ce) | 
  R100205 | 
  Na14Ce6Mn2+2Fe3+2Zr(PO4)7Si12O36(OH)2·3H2O | 
  Royal Ontario Museum K10061 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Stellerite | 
  R040174 | 
  Ca4(Si28Al8)O72·28H2O | 
  University of Arizona Mineral Museum 10105 | 
  unknown | 
  
           
   | 
   | 
   | Stellerite | 
  X060015 | 
  Ca4(Si28Al8)O72·28H2O | 
  University of Arizona Mineral Museum 14503 | 
  Sarbayskaya Quarry, Rudniy, Kusteni Oblast, Kazakhstan | 
  
           
   | 
   | 
   | Stellerite | 
  R060483 | 
  Ca4(Si28Al8)O72·28H2O | 
  Michael Scott S100123 | 
  Sokolovskoye mine, Kustani Region, Kazakhstan | 
  
           
   | 
   | 
   | Stellerite | 
  R070535 | 
  Ca4(Si28Al8)O72·28H2O | 
  James Shigley  | 
  Upper Clackamas River, Clackamas County, Oregon, USA | 
  
           
   | 
   | 
   | Stenhuggarite | 
  R080038 | 
  CaFe3+Sb3+As3+2O7 | 
  Michael Scott S101880 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Stephanite | 
  R050143 | 
  Ag5SbS4 | 
  Dave Bunk Minerals  | 
  Proano mine, Fresnillo, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Stephanite | 
  R050306 | 
  Ag5SbS4 | 
  Eugene Schlepp  | 
  Atlanta, Idaho, USA | 
  
           
   | 
   | 
   | Stephanite | 
  R050309 | 
  Ag5SbS4 | 
  Eugene Schlepp  | 
  Sonora, Mexico | 
  
           
   | 
   | 
   | Sternbergite | 
  R110137 | 
  AgFe2S3 | 
  William W. Pinch  | 
  Joachimsthal, Bohemia, Czechoslovakia | 
  
           
   | 
   | 
   | Stevensite | 
  R070332 | 
  (Ca,Na)xMg3-ySi4O10(OH)2 | 
  Michael Scott S100959 | 
  Kovdor, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Stewartite | 
  R070643 | 
  Mn2+Fe3+2(PO4)2(OH)2·8H2O | 
  Michael Scott S101338 | 
  Hagendorf, Bavaria, Germany | 
  
           
   | 
   | 
   | Stibarsen | 
  R060115 | 
  SbAs | 
  University of Arizona Mineral Museum 15215 | 
  Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Stibarsen | 
  R070299 | 
  SbAs | 
  James Shigley  | 
  Varutrask, Skelleftea, Vasterbotten, Sweden | 
  
           
   | 
   | 
   | Stibioclaudetite | 
  R080031 | 
  AsSbO3 | 
  William W Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Stibiotantalite | 
  R050232 | 
  Sb3+TaO4 | 
  Marcus Origlieri  | 
  Himalaya mine, Mesa Grande, San Diego County, California, USA | 
  
           
   | 
   | 
   | Stibiotantalite | 
  R050599 | 
  Sb3+TaO4 | 
  Wayne Thompson  | 
  Shengus, Pakistan | 
  
           
   | 
   | 
   | Stibivanite | 
  R080125 | 
  Sb3+2V4+O5 | 
  William W. Pinch  | 
  Consolidated Durham mines, Lake George, York County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Stibnite | 
  R050066 | 
  Sb2S3 | 
  Rock Currier  | 
  Wuling, Jiangxi Province, China | 
  
           
   | 
   | 
   | Stibnite | 
  R050016 | 
  Sb2S3 | 
  Eugene Schlepp  | 
  Romania | 
  
           
   | 
   | 
   | Stibnite | 
  R120137 | 
  Sb2S3 | 
  Benjamin N. Schumer  | 
  Green Prospect, Churchill County, Nevada, USA | 
  
           
   | 
   | 
   | Stichtite | 
  R050328 | 
  Mg6Cr2(CO3)(OH)16·4H2O | 
  Marcus Origlieri  | 
  Dundas, Tasmania, Australia | 
  
           
   | 
   | 
   | Stichtite | 
  R050475 | 
  Mg6Cr2(CO3)(OH)16·4H2O | 
  California Institute of Technology W-20701 | 
  near Dundas, Tasmania, Australia | 
  
           
   | 
   | 
   | Stichtite | 
  R060675 | 
  Mg6Cr2(CO3)(OH)16·4H2O | 
  Michael Scott S100268 | 
  Nevada Creek, Dundas, Tasmania, Australia | 
  
           
   | 
   | 
   | Stilbite-Ca | 
  R050012 | 
  NaCa4(Si27Al9)O72·28H2O | 
  University of Arizona Mineral Museum 11419 | 
  Harborville, Nova Scotia, Canada | 
  
           
   | 
   | 
   | Stilbite-Ca | 
  R050106 | 
  NaCa4(Si27Al9)O72·28H2O | 
  Fred Devito  | 
  Corea, Sonora, Mexico | 
  
           
   | 
   | 
   | Stillwellite-(Ce) | 
  R060899 | 
  CeBSiO5 | 
  Michael Scott S100968 | 
  Dara-i-Pioz, Alayskiy Range, South Tien- Shan Mountains, Tajikistan | 
  
           
   | 
   | 
   | Stillwellite-(Ce) | 
  R060911 | 
  CeBSiO5 | 
  Royal Ontario Museum M52515 | 
  Dimbulah, Queensland, Australia | 
  
           
   | 
   | 
   | Stilpnomelane | 
  R060334 | 
  (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O | 
  Michael Scott S100225 | 
  Blanchard Mountain, Skagit County, Washington, USA | 
  
           
   | 
   | 
   | Stilpnomelane | 
  R070696 | 
  (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O | 
  James Shigley  | 
  Brunsjo mine, Grythyttan, Vastmanland, Sweden | 
  
           
   | 
   | 
   | Stilpnomelane | 
  R110195 | 
  (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O | 
  Donald Doell  | 
  Broughton talc mine, Saint-Pierre-de-Broughton, Quebec, Canada | 
  
           
   | 
   | 
   | Stishovite | 
  R070183 | 
  SiO2 | 
  P. Dera  | 
  Synthetic | 
  
           
   | 
   | 
   | Stishovite | 
  R080042 | 
  SiO2 | 
  Jürgen Konzett  | 
  Synthetic at 15 GPa/1500ºC | 
  
           
   | 
   | 
   | Stokesite | 
  R060587 | 
  CaSnSi3O9·2H2O | 
  Michael Scott S100785 | 
  Urucum mine, Galileia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Stolzite | 
  X060016 | 
  Pb(WO4) | 
  University of Arizona Mineral Museum 11125 | 
  Reef mine, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Stolzite | 
  R050568 | 
  Pb(WO4) | 
  University of Arizona Mineral Museum 13642 | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Stolzite | 
  R070552 | 
  Pb(WO4) | 
  James Shigley  | 
  Kangaloolah, Tuena, Georgiana County, New South Wales, Australia | 
  
           
   | 
   | 
   | Stolzite | 
  R130615 | 
  Pb(WO4) | 
  Ron Gibbs  | 
  Reef mine, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Stottite | 
  R120089 | 
  Fe2+Ge(OH)6 | 
  William W Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Straczekite | 
  R050325 | 
  (Ca,K,Ba)(V5+,V4+)8O20·3H2O | 
  Marcus Origlieri  | 
  Union Carbide mine, Wilson Springs, Garland County, Arkansas, USA | 
  
           
   | 
   | 
   | Strakhovite | 
  R080039 | 
  NaBa3(Mn2+,Mn3+)4[Si4O10(OH)2][Si2O7]O2·(F,OH)·H2O | 
  Michael Scott S100661 | 
  Dzhavodi Area, Ir-Nimi manganese deposit, Taikan Ridge, Khabarovskiy Kray, Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Strashimirite | 
  R060142 | 
  Cu4(AsO4)2(OH)2·2.5H2O | 
  Marcus Origlieri  | 
  Majuba Hill, Pershing County, Nevada, USA | 
  
           
   | 
   | 
   | Strashimirite | 
  R060335 | 
  Cu4(AsO4)2(OH)2·2.5H2O | 
  Michael Scott S100055 | 
  Burrus mine, Pyramid District, Washoe County, Nevada, USA | 
  
           
   | 
   | 
   | Strelkinite | 
  R070046 | 
  Na2(UO2)2(VO4)2·6H2O | 
  Michael Scott S105065 | 
  Basaral occurrence, southwest Balkhash region, Kazakhstan | 
  
           
   | 
   | 
   | Strengite | 
  R040177 | 
  Fe3+(PO4)·2H2O | 
  University of Arizona Mineral Museum 2450 | 
  Plegstein, Oberpfalz, Bavaria, Germany | 
  
           
   | 
   | 
   | Strengite | 
  R070590 | 
  Fe3+(PO4)·2H2O | 
  James Shigley  | 
  Foddersack Mountain, near Norman, Montgomery County, Arkansas, USA | 
  
           
   | 
   | 
   | Stringhamite | 
  R060934 | 
  CaCu(SiO4)·H2O | 
  Bob Jenkins  | 
  Santos mine, Tierra Amarilla, Chile | 
  
           
   | 
   | 
   | Stringhamite | 
  R110018 | 
  CaCu(SiO4)·H2O | 
  Bob Jenkins  | 
  Christmas mine, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Stromeyerite | 
  R060909 | 
  CuAgS | 
  Royal Ontario Museum M16326 | 
  Gowganda, Ontario, Canada | 
  
           
   | 
   | 
   | Stromeyerite | 
  R060908 | 
  CuAgS | 
  Royal Ontario Museum M39131 | 
  Cobalt, Ontario, Canada | 
  
           
   | 
   | 
   | Strontianite | 
  R040037 | 
  Sr(CO3) | 
  University of Arizona Mineral Museum 7934 | 
  Alston Moor, Cumbria, England | 
  
           
   | 
   | 
   | Strontianite | 
  X050157 | 
  Sr(CO3) | 
  Caltech  | 
  Fidalgo Island, Puget Sound, Washington, USA | 
  
           
   | 
   | 
   | Strontianite | 
  R050476 | 
  Sr(CO3) | 
  California Institute of Technology W-20702 | 
  Fidalgo Island, Puget Sound, Washington, USA | 
  
           
   | 
   | 
   | Strontianite | 
  R050564 | 
  Sr(CO3) | 
  Dave Bunk Minerals  | 
  Winfield Quarry, Lancaster County, Pennsylvania, USA | 
  
           
   | 
   | 
   | Strontiodresserite | 
  R070741 | 
  SrAl2(CO3)2(OH)4·H2O | 
  Michael Scott S102245 | 
  Francon quarry, St. Michel District, Montréal, Jacques Cartier Co., Québec, Canada | 
  
           
   | 
   | 
   | Strontioginorite | 
  R110149 | 
  CaSrB14O20(OH)6·5H2O | 
  Donald M Doell and Brian Roulston  | 
  Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Strontiohurlbutite | 
  R141104 | 
  SrBe2(PO4)2 | 
  Can Rao  | 
  Nanping No. 31 pegmatite, Fujian province, southeastern China | 
  
           
   | 
   | 
   | Strontiojoaquinite | 
  R060331 | 
  (Na,Fe)2Ba2Sr2Ti2(SiO3)8(O,OH)2·H2O | 
  Michael Scott S100043 | 
  Mina Numero Uno, San Benito County, California, USA | 
  
           
   | 
   | 
   | Strontiojoaquinite | 
  R070084 | 
  (Na,Fe)2Ba2Sr2Ti2(SiO3)8(O,OH)2·H2O | 
  James Shigley  | 
  Clear Creek area, San Benito County, California, USA | 
  
           
   | 
   | 
   | Strontioruizite | 
  R160085 | 
  Sr2Mn3+2Si4O11(OH)4·2H2O | 
  Bruce Cairncross  | 
  N’Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Strunzite | 
  R050619 | 
  Mn2+Fe3+2(PO4)2(OH)2·6H2O | 
  University of Arizona Mineral Museum 16075 | 
  Hagendorf, Germany | 
  
           
   | 
   | 
   | Struvite | 
  R050511 | 
  (NH4)Mg(PO4)·6H2O | 
  American Museum of Natural History 15490 | 
  Hamburg, Germany | 
  
           
   | 
   | 
   | Struvite | 
  R050540 | 
  (NH4)Mg(PO4)·6H2O | 
  University of Arizona Mineral Museum 4824 | 
  Hamburg, Germany | 
  
           
   | 
   | 
   | Stützite | 
  R060332 | 
  Ag5-xTe3 (x = 0.24-0.36) | 
  Michael Scott S100049 | 
  Bambollita mine, Moctezuma District, Sonora, Mexico | 
  
           
   | 
   | 
   | Stützite | 
  R070701 | 
  Ag5-xTe3 (x = 0.24-0.36) | 
  Michael Scott S101328 | 
  Klondike mine, Saguache County, Colorado, USA | 
  
           
   | 
   | 
   | Sugilite | 
  R070623 | 
  KNa2Fe3+2(Li3Si12)O30 | 
  Shinichi Kihara  | 
  Wessels mine, Kuruman, Kalahari Manganese Field, South Africa | 
  
           
   | 
   | 
   | Sugilite | 
  R130754 | 
  KNa2Fe3+2(Li3Si12)O30 | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  N'Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Sulfadoxine | 
  D120002 | 
   | 
  David Blake  | 
  Synthetic from Sigma | 
  
           
   | 
   | 
   | Sulfoborite | 
  R140689 | 
  Mg3[B(OH)4]2(SO4)(OH,F)2 | 
  Rock Currier  | 
  Gröna mine, Bernburg, Stassfurt Potash Deposit, Saxony-Anhalt, Germany | 
  
           
   | 
   | 
   | Sulphohalite | 
  X050158 | 
  Na6(SO4)2ClF | 
  Caltech  | 
  Searles Lake, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Sulphohalite | 
  R050479 | 
  Na6(SO4)2ClF | 
  California Institute of Technology W-20707 | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Sulphur | 
  R040135 | 
  S | 
  University of Arizona Mineral Museum 5818 | 
  Sicily, Italy | 
  
           
   | 
   | 
   | Sulphur | 
  R050006 | 
  S | 
  Eugene Schlepp  | 
  San Felipe, Mexicali, Baja California Norte, Mexico | 
  
           
   | 
   | 
   | Sulvanite | 
  R060853 | 
  Cu3VS4 | 
  Michael Scott S100889 | 
  Burra Burra, South Australia, Australia | 
  
           
   | 
   | 
   | Suolunite | 
  R060917 | 
  Ca2Si2O5(OH)2·H2O | 
  Royal Ontario Museum M52459 | 
  Lac d'Amiante mine, Black Lake, Quebec, Canada | 
  
           
   | 
   | 
   | Suredaite | 
  R070191 | 
  PbSnS3 | 
  Renato and Adriana Pagano  | 
  Sector Oploco, Niv. 7/1, Mina Pirquitas, Jujuy, Argentina | 
  
           
   | 
   | 
   | Suredaite | 
  R070203 | 
  PbSnS3 | 
  Renato and Adriana Pagano  | 
  Sector Oploco, Niv. 7/1, Mina Pirquitas, Jujuy, Argentina | 
  
           
   | 
   | 
   | Surite | 
  R060794 | 
  (Pb,Ca)3Al2(Si,Al)4O10(CO3)2(OH)3·0.3H2O | 
  Bob Jenkins  | 
  Mammoth mine, Tiger, Arizona, USA | 
  
           
   | 
   | 
   | Surite | 
  R110145 | 
  (Pb,Ca)3Al2(Si,Al)4O10(CO3)2(OH)3·0.3H2O | 
  Joe Ruiz  | 
  Mammoth mine, Tiger, Arizona, USA | 
  
           
   | 
   | 
   | Sursassite | 
  R060336 | 
  Mn2+2Al3(SiO4)(Si2O7)(OH)3 | 
  Michael Scott S100028 | 
  Strategic Manganese mine, near Woodstock, New Brunswick, Canada | 
  
           
   | 
   | 
   | Susannite | 
  R070704 | 
  Pb4(SO4)(CO3)2(OH)2 | 
  Michael Scott S102221 | 
  Boarezzo mine (Pradisci prospect; Rio Carpane prospect), Boarezzo, Varese Province, Lombardy, Italy | 
  
           
   | 
   | 
   | Sussexite | 
  R130121 | 
  Mn2+BO2(OH) | 
  Rock Currier  | 
  Mine Hill, Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Suzukiite | 
  R150039 | 
  BaV4+Si2O7 | 
  Gunnar Farber  | 
  Gun Claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Svabite | 
  R050180 | 
  Ca5(AsO4)3F | 
  Marcus Origlieri  | 
  Ultevis, Sweden | 
  
           
   | 
   | 
   | Svanbergite | 
  R050549 | 
  SrAl3(SO4)(PO4)(OH)6 | 
  University of Arizona Mineral Museum 3049 | 
  Horrsjoberg, Varmland, Sweden | 
  
           
   | 
   | 
   | Svanbergite | 
  R060501 | 
  SrAl3(SO4)(PO4)(OH)6 | 
  Michael Scott S100375 | 
  Dover mine, near Hawthorne, Mineral County, Nevada, USA | 
  
           
   | 
   | 
   | Swedenborgite | 
  R060486 | 
  NaBe4Sb5+O7 | 
  Michael Scott S100031 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Swinefordite | 
  R070707 | 
  Ca0.2(Li,Al,Mg,Fe)3(Si,Al)4O10(OH,F)2·nH2O | 
  Michael Scott S102226 | 
  Foote Lithium Co. mine, Kings Mountain District, Cleveland County, North Carolina, USA | 
  
           
   | 
   | 
   | Sylvanite | 
  R070504 | 
  AgAuTe4 | 
  James Shigley  | 
  Boulder County, Colorado, USA | 
  
           
   | 
   | 
   | Sylvite | 
  R050166 | 
  KCl | 
  Marcus Origlieri  | 
  Salton Sea, Imperial County, California, USA | 
  
           
   | 
   | 
   | Symplesite | 
  R120074 | 
  Fe2+3(AsO4)2·8H2O | 
  Bob Jenkins  | 
  Saubachbruch, Muldenberg, Vogtland, Sachsen, Germany | 
  
           
   | 
   | 
   | Symplesite | 
  R130513 | 
  Fe2+3(AsO4)2·8H2O | 
  Rock Currier  | 
  Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Synadelphite | 
  R080097 | 
  Mn2+9(AsO4)2(AsO3)(OH)9·2H2O | 
  William W Pinch  | 
  Moss mine, Nordmark, Varmland, Sweden | 
  
           
   | 
   | 
   | Synadelphite | 
  R170044 | 
  Mn2+9(AsO4)2(AsO3)(OH)9·2H2O | 
  UAMM 3017 | 
  Värmland, Sweden | 
  
           
   | 
   | 
   | Synchysite-(Ce) | 
  R060210 | 
  CaCe(CO3)2F | 
  Royal Ontario Museum M42336 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Synchysite-(Ce) | 
  R060971 | 
  CaCe(CO3)2F | 
  Michael Scott S101312 | 
  Val Nalps, Tavetsch, Graubunden, Switzerland | 
  
           
   | 
   | 
   | Synchysite-(Y) | 
  R060984 | 
  CaY(CO3)2F | 
  Michael Scott S101046 | 
  Scrub Oaks mine, near Dover, Morris County, New Jersey, USA | 
  
           
   | 
   | 
   | Syngenite | 
  R061002 | 
  K2Ca(SO4)2·H2O | 
  Michael Scott S101427 | 
  Kalush, Ukraine | 
  
           
   | 
   | 
   | Szaibélyite | 
  R060289 | 
  MgBO2(OH) | 
  Herb Obodda 099 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Szaibélyite | 
  R060372 | 
  MgBO2(OH) | 
  Michael Scott S100050 | 
  Blind Mountain, Pioche, Lincoln County, Nevada, USA | 
  
           
   | 
   | 
   | Szaibélyite | 
  R070498 | 
  MgBO2(OH) | 
  James Shigley  | 
  Stinson Beach, Marin County, California, USA | 
  
           
   | 
   | 
   | Szenicsite | 
  R050146 | 
  Cu3(MoO4)(OH)4 | 
  Jim McGlasson  | 
  Jardinera mine, Inca del Oro, Chile | 
  
           
   | 
   | 
   | Szenicsite | 
  R100179 | 
  Cu3(MoO4)(OH)4 | 
  Joe Ruiz  | 
  Carlota mine, Pinto Creek, Gila, Arizona, USA | 
  
           
   | 
   | 
   | Szomolnokite | 
  R070620 | 
  Fe(SO4)·H2O | 
  James Shigley  | 
  Oage mine, Ominato, Aomori-Ken, Honshu, Japan | 
  
           
   | 
   | 
   | Tadzhikite-(Ce) | 
  R060641 | 
  Ca4Ce2Ti◻(B4Si4O22)(OH)2 | 
  Michael Scott S100826 | 
  Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mountains, Tajikistan | 
  
           
   | 
   | 
   | Tainiolite | 
  R061070 | 
  KLiMg2Si4O10F2 | 
  Bob Downs  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Takedaite | 
  R140795 | 
  Ca3B2O6 | 
  Rock Currier  | 
  Fuka mine, Bitchu-cho-fuka, Takahashi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan | 
  
           
   | 
   | 
   | Takéuchiite | 
  R100047 | 
  Mg2Mn3+O2(BO3) | 
  William W Pinch (Large sample), Don Doell (Small sample)  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Talc | 
  R040137 | 
  Mg3Si4O10(OH)2 | 
  University of Arizona Mineral Museum 13208 | 
  Murphy, North Carolina, USA | 
  
           
   | 
   | 
   | Talc | 
  R050087 | 
  Mg3Si4O10(OH)2 | 
  University of Arizona Mineral Museum 2342 | 
  St. Lawrence County, New York, USA | 
  
           
   | 
   | 
   | Talc | 
  R050058 | 
  Mg3Si4O10(OH)2 | 
  Rock Currier  | 
  Murphy, North Carolina, USA | 
  
           
   | 
   | 
   | Talc | 
  X050159 | 
  Mg3Si4O10(OH)2 | 
  CIT 14760 | 
  Bandeirantes de Mariana, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Talc | 
  X050160 | 
  Mg3Si4O10(OH)2 | 
  CIT 12122 | 
  Old Talc mine, Chester, Vermont, USA | 
  
           
   | 
   | 
   | Talc | 
  X050161 | 
  Mg3Si4O10(OH)2 | 
  Caltech  | 
  Nopah Range, Inyo County, California, USA | 
  
           
   | 
   | 
   | Talmessite | 
  R060369 | 
  Ca2Mg(AsO4)2·2H2O | 
  Michael Scott S100026 | 
  Gold Hill, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Talmessite | 
  R060830 | 
  Ca2Mg(AsO4)2·2H2O | 
  Michael Scott S101262 | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Talmessite | 
  R080007 | 
  Ca2Mg(AsO4)2·2H2O | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Talnakhite | 
  R060389 | 
  Cu9Fe8S16 | 
  Michael Scott S100088 | 
  Oktyabrskiy mine, Talnakh, Noril'sk Region, Siberia, U.S.S.R. | 
  
           
   | 
   | 
   | Tamarugite | 
  R061060 | 
  NaAl(SO4)2·6H2O | 
  Michael Scott S100782 | 
  El Desierto mine fumaroles, Potosí, Bolivia | 
  
           
   | 
   | 
   | Taneyamalite | 
  R070705 | 
  (Na,Ca)Mn2+12(Si,Al)12(O,OH)44 | 
  Michael Scott S102220 | 
  Taneyama mine, Kumamoto Prefecture, Kyushu Island, Japan | 
  
           
   | 
   | 
   | Tangeite | 
  R070489 | 
  CaCu(VO4)(OH) | 
  Bob Jenkins  | 
  Chinita mine, Tal Tal, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Taniajacoite | 
  R140945 | 
  SrCaMn3+2Si4O11(OH)4·2H2O | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  N'Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Tantalite-(Fe) | 
  R070548 | 
  Fe2+Ta2O6 | 
  James Shigley  | 
  Grizzly Bear Gulch, Black Hills, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Tantalite-(Mn) | 
  R050600 | 
  Mn2+Ta2O6 | 
  Wayne Thompson  | 
  Shengus, Pakistan | 
  
           
   | 
   | 
   | Tantalite-(Mn) | 
  R060252 | 
  Mn2+Ta2O6 | 
  William W. Pinch  | 
  Kohtokay mine, Xinjiang Autonomous Region, China | 
  
           
   | 
   | 
   | Tantalite-(Mn) | 
  R060415 | 
  Mn2+Ta2O6 | 
  Herb Obodda 108 | 
  Nuristan, Laghman Province, Afghanistan | 
  
           
   | 
   | 
   | Tapiaite | 
  R150032 | 
  Ca5Al2(AsO4)4(OH)4·12H2O | 
  Bob Jenkins  | 
  Jote mine, Pampa Larga district, Tierra Amarilla, Copiapo´ Province, Atacama Region, Chile | 
  
           
   | 
   | 
   | Tapiolite-(Fe) | 
  R050358 | 
  Fe2+Ta2O6 | 
  University of Arizona Mineral Museum 13767 | 
  Musgrave Ranges, South Australia, Australia | 
  
           
   | 
   | 
   | Tapiolite-(Fe) | 
  R110014 | 
  Fe2+Ta2O6 | 
  Luiz Menezes  | 
  Sapucaia do Norte district, Galileia, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Taramellite | 
  R110043 | 
  Ba4(Fe3+,Ti)4O2[B2Si8O27]Clx | 
  William W Pinch  | 
  Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Taramellite | 
  R160011 | 
  Ba4(Fe3+,Ti)4O2[B2Si8O27]Clx | 
  Gunnar Färber  | 
  Gun claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Taramite | 
  R061101 | 
  Na(NaCa)(Mg3Al2)(Si6Al2)O22(OH)2 | 
  Michael Scott S101660 | 
  Monte Beigua, 11 km north of Varazze, Savona, Liguria, Italy | 
  
           
   | 
   | 
   | Taramite | 
  R070238 | 
  Na(NaCa)(Mg3Al2)(Si6Al2)O22(OH)2 | 
  Michael Scott S105739 | 
  Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia | 
  
           
   | 
   | 
   | Taranakite | 
  R140802 | 
  K3Al5(PO3OH)6(PO4)2·18H2O | 
  Rock Currier  | 
  Parwan lava caves, Bacchus Marsh, Victoria, Australia | 
  
           
   | 
   | 
   | Tarbagataite | 
  R130041 | 
  (K◻)CaFe2+7Ti2(Si4O12)2O2(OH)5 | 
  Elena Sokolova  | 
  Verkhnee Espe deposit, Akjailyautas Mountains, Kazakhstan | 
  
           
   | 
   | 
   | Tarbuttite | 
  R050621 | 
  Zn2(PO4)(OH) | 
  University of Arizona Mineral Museum 13605 | 
  Broken Hill, Rhodesia | 
  
           
   | 
   | 
   | Tausonite | 
  X090004 | 
  SrTiO3 | 
  Gemological Institute of America 37794 | 
  Synthetic | 
  
           
   | 
   | 
   | Tavorite | 
  R070523 | 
  LiFe3+(PO4)(OH) | 
  James Shigley  | 
  Bull Moose mine, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Tavorite | 
  R140258 | 
  LiFe3+(PO4)(OH) | 
  Michael Scott S101093 | 
  Sandamap, Namibia | 
  
           
   | 
   | 
   | Tazzoliite | 
  R130042 | 
  Ba2CaSr0.5Na0.5Ti2Nb3SiO17[PO2(OH)2]0.5 | 
  Fabrizio Nestola  | 
  Monte delle Basse, Euganei Hills, Galzignano Terme, Padova, Italy | 
  
           
   | 
   | 
   | Teallite | 
  R050434 | 
  PbSnS2 | 
  University of Arizona Mineral Museum 11031 | 
  Carhuaycollo, Carguaicollo District, Potosi, Bolivia | 
  
           
   | 
   | 
   | Teallite | 
  R060487 | 
  PbSnS2 | 
  Michael Scott S100329 | 
  Porvenir mine, Huanuni, Department of Oruro, Bolivia | 
  
           
   | 
   | 
   | Teineite | 
  R100206 | 
  Cu2+(Te4+O3)·2H2O | 
  Rob Lavinsky/Evan Jones  | 
  Cole shaft, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Tellurite | 
  R050285 | 
  TeO2 | 
  Marcus Origlieri  | 
  Mina Bambollita, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Tellurite | 
  R070606 | 
  TeO2 | 
  James Shigley  | 
  Moctezuma mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Tellurium | 
  R060136 | 
  Te | 
  University of Arizona Mineral Museum 1235 | 
  Good Hope mine, Vulcan District, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Tellurium | 
  R070376 | 
  Te | 
  Royal Ontario Museum M45787 | 
  North of Bennett Lake, Rainy River District, Ontario, Canada | 
  
           
   | 
   | 
   | Tellurobismuthite | 
  R060948 | 
  Bi2Te3 | 
  Bob Jenkins  | 
  Little Ben mine, Matheson, Ontario, Canada | 
  
           
   | 
   | 
   | Tellurobismuthite | 
  R070158 | 
  Bi2Te3 | 
  James Shigley  | 
  Boliden, Skelleftea, Vasterbotten, Sweden | 
  
           
   | 
   | 
   | Tengchongite | 
  R190032 | 
  Ca(UO2)6(MoO4OH)2O2(OH)4·9H2O | 
  Guang Fan  | 
  Tengchong County, Yunnan Province, China. | 
  
           
   | 
   | 
   | Tengerite-(Y) | 
  R060480 | 
  Y2(CO3)3·2-3H2O | 
  Michael Scott S100058 | 
  Ytterby, Sweden | 
  
           
   | 
   | 
   | Tennantite-(Fe) | 
  R110024 | 
  Cu6(Cu4Fe2)As4S13 | 
  William Pinch  | 
  Quiruvilca, La Libertad Department, Peru | 
  
           
   | 
   | 
   | Tennantite-(Zn) | 
  R050438 | 
  Cu6(Cu4Zn2)As4S13 | 
  University of Arizona Mineral Museum 14712 | 
  Conception del Oro, Zecatecas, Mexico | 
  
           
   | 
   | 
   | Tennantite-(Zn) | 
  R050474 | 
  Cu6(Cu4Zn2)As4S13 | 
  California Institute of Technology W-20745 | 
  Daily Judge mine, Park City, Utah, USA | 
  
           
   | 
   | 
   | Tennantite-(Zn) | 
  R050558 | 
  Cu6(Cu4Zn2)As4S13 | 
  Dave Bunk Minerals  | 
  Casaplaca mine, Huarochiri Province, Lima Department, Peru | 
  
           
   | 
   | 
   | Tenorite | 
  R060978 | 
  CuO | 
  Michael Scott S101316 | 
  Algomah, Michigan, USA | 
  
           
   | 
   | 
   | Tenorite | 
  R120076 | 
  CuO | 
  Deng-Shiu Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Tephroite | 
  X050162 | 
  Mn2+2(SiO4) | 
  RD Shannon 56163- 106 | 
   | 
  
           
   | 
   | 
   | Tephroite | 
  R060141 | 
  Mn2+2(SiO4) | 
  Marcus Origlieri  | 
  Franklin, New Jersey, USA | 
  
           
   | 
   | 
   | Tephroite | 
  R070511 | 
  Mn2+2(SiO4) | 
  Michael Scott S104417 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Tephroite | 
  R100105 | 
  Mn2+2(SiO4) | 
  American Museum of Natural History 27450 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Terlinguacreekite | 
  R060731 | 
  Hg2+3O2Cl2 | 
  Michael Scott S100033 | 
  Mariposa mine, Terlingua, Brewster County, Texas, USA | 
  
           
   | 
   | 
   | Terlinguaite | 
  R060492 | 
  Hg2OCl | 
  Michael Scott S100036 | 
  Mariposa mine, Terlingua Mining District, Brewster County, Texas, USA | 
  
           
   | 
   | 
   | Terlinguaite | 
  R140878 | 
  Hg2OCl | 
  Tom Loomis  | 
  Terlingua, Texas, USA | 
  
           
   | 
   | 
   | Ternesite | 
  R140779 | 
  Ca5(SiO4)2(SO4) | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Terrywallaceite | 
  R100007 | 
  AgPb(Sb,Bi)3S6 | 
  William Pinch  | 
  Level 390, Vein 14, Mina Herminia, Julcani District, Huancavelica, Peru | 
  
           
   | 
   | 
   | Tetradymite | 
  R110138 | 
  Bi2Te2S | 
  William W. Pinch  | 
  Schubkau, Schemnitz, Hungary | 
  
           
   | 
   | 
   | Tetradymite | 
  R130067 | 
  Bi2Te2S | 
  William W. Pinch  | 
  Oravica, Transylvania, Romania | 
  
           
   | 
   | 
   | Tetraferriphlogopite | 
  R140819 | 
  KMg3(Si3Fe3+)O10(OH)2 | 
  Rock Currier  | 
  Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Tetrahedrite-(Zn) | 
  R040164 | 
  Cu6(Cu4Zn2)Sb4S13 | 
  University of Arizona Mineral Museum 13961 | 
  Sunshine mine, Kellog, Idaho, USA | 
  
           
   | 
   | 
   | Tetrahedrite-(Zn) | 
  R050302 | 
  Cu6(Cu4Zn2)Sb4S13 | 
  Eugene Schlepp  | 
  Casapalca, Peru | 
  
           
   | 
   | 
   | Tetrahedrite-(Zn) | 
  R070423 | 
  Cu6(Cu4Zn2)Sb4S13 | 
  Michael Scott S104523 | 
  Tunnel Extension mine, Marysvale District (Marysvale Uranium area), Piute County, Utah, USA | 
  
           
   | 
   | 
   | Tetrahedrite-(Zn) | 
  R100204 | 
  Cu6(Cu4Zn2)Sb4S13 | 
  William W Pinch  | 
  Level 390, Vein 14, Mina Herminia, Julcani District, Huancavelica, Peru | 
  
           
   | 
   | 
   | Tetrataenite | 
  R140822 | 
  FeNi | 
  Rock Currier  | 
  Toluca meteorite, Jiquipilco, Mexico | 
  
           
   | 
   | 
   | Tetrawickmanite | 
  R100003 | 
  Mn2+Sn4+(OH)6 | 
  William Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Tetrawickmanite | 
  R170046 | 
  Mn2+Sn4+(OH)6 | 
  Peter Megaw  | 
  Mina San Martin, Sombrerete, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Thaumasite | 
  R060296 | 
  Ca3Si(OH)6(CO3)(SO4)·12H2O | 
  Herb Obodda 030 | 
  N'Chwaning II mine, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Thaumasite | 
  R060814 | 
  Ca3Si(OH)6(CO3)(SO4)·12H2O | 
  Michael Scott S101176 | 
  Crestmore Quarry, Riverside County, Jurupa Mountains, California, USA | 
  
           
   | 
   | 
   | Theisite | 
  R050326 | 
  Cu5Zn5(AsO4)2(OH)14 | 
  Marcus Origlieri  | 
  Tucker's Tunnel, Tuckerville, Hinsdale County, Colorado, USA | 
  
           
   | 
   | 
   | Theisite | 
  R060478 | 
  Cu5Zn5(AsO4)2(OH)14 | 
  Michael Scott S100021 | 
  near Grand Junction, Mesa County, Colorado, USA | 
  
           
   | 
   | 
   | Thénardite | 
  R040178 | 
  Na2(SO4) | 
  University of Arizona Mineral Museum 8627 | 
  Bonita Flow, Flagstaff, Coconino County, Arizona, USA | 
  
           
   | 
   | 
   | Thénardite | 
  R040183 | 
  Na2(SO4) | 
  University of Arizona Mineral Museum 6105 | 
  Camp Verde, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Theophrastite | 
  R070699 | 
  Ni(OH)2 | 
  Michael Scott S102620 | 
  Lord Brassey mine, Heazlewood, Tasmania, Australia | 
  
           
   | 
   | 
   | Thomasclarkite-(Y) | 
  R110186 | 
  NaY(HCO3)(OH)3·4H2O | 
  Donald Doell  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Thometzekite | 
  R060394 | 
  PbCu2+2(AsO4)2·2H2O | 
  Michael Scott S100226 | 
  Gold Hill, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Thometzekite | 
  R130618 | 
  PbCu2+2(AsO4)2·2H2O | 
  Mark N. Feinglos  | 
  Tsumeb mine, Tsumeb, Otjikoto Region, Namibia | 
  
           
   | 
   | 
   | Thomsenolite | 
  R050282 | 
  NaCaAlF6·H2O | 
  Marcus Origlieri  | 
  Ivigtut, Greenland | 
  
           
   | 
   | 
   | Thomsonite-Ca | 
  R050091 | 
  NaCa2(Al5Si5)O20·6H2O | 
  Rock Currier  | 
  Amudikha River, near Mirny, Yakutia, Siberia, Russia | 
  
           
   | 
   | 
   | Thomsonite-Ca | 
  R050103 | 
  NaCa2(Al5Si5)O20·6H2O | 
  Rock Currier  | 
  Seeberg, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Thorianite | 
  R060849 | 
  ThO2 | 
  Michael Scott S100914 | 
  Belafeno, Malagasy Republic | 
  
           
   | 
   | 
   | Thorianite | 
  R130003 | 
  ThO2 | 
  Don Doell  | 
  Millar's mine, Tory Hill, Monmouth Township, Haliburton County, Ontario, Canada | 
  
           
   | 
   | 
   | Thorite | 
  X050163 | 
  Th(SiO4) | 
  Caltech  | 
  synthetic, grown by Boatner | 
  
           
   | 
   | 
   | Thorite | 
  X050164 | 
  Th(SiO4) | 
  Caltech  | 
  Italy | 
  
           
   | 
   | 
   | Thortveitite | 
  R060360 | 
  Sc2Si2O7 | 
  Michael Scott S100034 | 
  Rossa, near Evje, southern Norway | 
  
           
   | 
   | 
   | Thortveitite | 
  R061065 | 
  Sc2Si2O7 | 
  Bob Downs  | 
  Synthetic | 
  
           
   | 
   | 
   | Tiemannite | 
  R050550 | 
  HgSe | 
  Dave Bunk Minerals  | 
  Queretaro, Mexico | 
  
           
   | 
   | 
   | Tiemannite | 
  R060463 | 
  HgSe | 
  Michael Scott S100029 | 
  Lucky Boy mine, Cottonwood Creek, Marysvale, Piute County, Utah, USA | 
  
           
   | 
   | 
   | Tilasite | 
  R050246 | 
  CaMg(AsO4)F | 
  Marcus Origlieri  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Tilasite | 
  R060618 | 
  CaMg(AsO4)F | 
  Michael Scott S100827 | 
  Cervandone, Italy | 
  
           
   | 
   | 
   | Tilleyite | 
  R050227 | 
  Ca5Si2O7(CO3)2 | 
  Marcus Origlieri  | 
  Crestmore Quarry, Riverside County, California, USA | 
  
           
   | 
   | 
   | Tin | 
  R060756 | 
  Sn | 
  Michael Scott S101375 | 
  Aberfoil river, near Oban, New South Wales, Australia | 
  
           
   | 
   | 
   | Tinaksite | 
  R060375 | 
  K2NaCa2TiSi7O18(OH)O | 
  Michael Scott S100019 | 
  Chara River area, Murun Massif, northwest Aldan, Siberia, U.S.S.R. | 
  
           
   | 
   | 
   | Tincalconite | 
  R050660 | 
  Na2B4O5(OH)4·3H2O | 
  Marcus Origlieri  | 
  Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Tinsleyite | 
  R070706 | 
  KAl2(PO4)2(OH)·2H2O | 
  Michael Scott S102504 | 
  Tip Top mine, Fourmile, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Tinticite | 
  R070682 | 
  Fe3+3(PO4)2(OH)3·3H2O | 
  Michael Scott S100660 | 
  Tintic Standard mine, East Tintic District, East Tintic Mountainsts, Utah County, Utah, USA | 
  
           
   | 
   | 
   | Tinticite | 
  R190028 | 
  Fe3+3(PO4)2(OH)3·3H2O | 
  Joan Rosell, Jordi Ibáñez (CSIC-ITJA), Tariq Jawhari (CCiTUB)  | 
  Rocabruna mines, Bruguers, Gavà, Baix Llobregat, Barcelona, Catalonia, Spain | 
  
           
   | 
   | 
   | Tintinaite | 
  R110046 | 
  Pb10Cu2Sb16S35 | 
  Royal Ontario Museum M27173 | 
  Deer Park mine, Rossland, British Columbia, Canada | 
  
           
   | 
   | 
   | Tintinaite | 
  R110163 | 
  Pb10Cu2Sb16S35 | 
  Big piece from Royal Ontario Museum (M37320) and two smaller pieces from Mark Feinglos.   | 
  Tintina Silver mine, Watson Lake, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Tinzenite | 
  R050251 | 
  Ca2Mn2+4Al4[B2Si8O30](OH)2 | 
  Marcus Origlieri  | 
  Tinzen, Sursass Valley, Switzerland | 
  
           
   | 
   | 
   | Tinzenite | 
  R110064 | 
  Ca2Mn2+4Al4[B2Si8O30](OH)2 | 
  Renato & Adriana Pagano  | 
  Gambatesa mine, Val Graveglia, Genova, Italy | 
  
           
   | 
   | 
   | Tiptopite | 
  R070609 | 
  K2(Li,Na,Ca)6(Be6P6)O24(OH)2·1.3H2O | 
  Dakota Matrix Minerals  | 
  Tip Top mine, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Tiragalloite | 
  R130101 | 
  Mn2+4As5+Si3O12(OH) | 
  Rock Currier  | 
  Molinello mine, Near Lavagna, Geona, Graveglia Valley, Italy | 
  
           
   | 
   | 
   | Tistarite | 
  R170055 | 
  Ti2O3 | 
  Sarah Gain  | 
  Pyroclastic and alluvial deposits near Mount Carmel, Israel | 
  
           
   | 
   | 
   | Titanite | 
  R040033 | 
  CaTi(SiO4)O | 
  University of Arizona Mineral Museum 9799 | 
  Brazil | 
  
           
   | 
   | 
   | Titanite | 
  R050039 | 
  CaTi(SiO4)O | 
  University of Arizona Mineral Museum 2217 | 
  Kingman, Arizona, USA | 
  
           
   | 
   | 
   | Titanite | 
  R050114 | 
  CaTi(SiO4)O | 
  Syed Shah  | 
  Isthak Valley Iskardu, Northern Areas Gilgit, Pakistan | 
  
           
   | 
   | 
   | Titanite | 
  R050124 | 
  CaTi(SiO4)O | 
  Carlos and Paulo Vasconcelos  | 
  Capelinha, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Titanite | 
  R050472 | 
  CaTi(SiO4)O | 
  California Institute of Technology W-20771 | 
  Turner's Island, Lake Clear, Wadawaska, Ontario, Canada | 
  
           
   | 
   | 
   | Titanite | 
  R100025 | 
  CaTi(SiO4)O | 
  Ikram Mineralogy  | 
  Kharan, Balochistan, Pakistan | 
  
           
   | 
   | 
   | Titanite | 
  R100136 | 
  CaTi(SiO4)O | 
  William W. Pinch  | 
  Baja California, Mexico | 
  
           
   | 
   | 
   | Titanite | 
  R120030 | 
  CaTi(SiO4)O | 
  Donald Doell  | 
  Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan | 
  
           
   | 
   | 
   | Titanowodginite | 
  R061033 | 
  Mn2+TiTa2O8 | 
  Michael Scott S101303 | 
  Tanco pegmatite, Manitoba, Canada | 
  
           
   | 
   | 
   | Titantaramellite | 
  R060315 | 
  Ba4(Ti,Fe3+,Mg)4(O,OH)2[B2Si8O27]Clx | 
  Michael Scott S100198 | 
  Esquire #1 claim, Rush Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Titantaramellite | 
  R080041 | 
  Ba4(Ti,Fe3+,Mg)4(O,OH)2[B2Si8O27]Clx | 
  Michael Scott S101342 | 
  La Madrelena mine, Tres Pozos, Municipio de Tecate, Baja California Norte, Mexico | 
  
           
   | 
   | 
   | Tlapallite | 
  R060888 | 
  (Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2·3H2O | 
  Bob Jenkins  | 
  La Oriental mine, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Tobermorite | 
  R060147 | 
  Ca4Si6O17(H2O)2·(Ca·3H2O) | 
  University of Arizona Mineral Museum 8770 | 
  Crestmore Quarries, Riverside County, California | 
  
           
   | 
   | 
   | Tochilinite | 
  R060887 | 
  6(Fe0.9S)·5[(Mg,Fe)(OH)2] | 
  Bob Jenkins  | 
  Cornwall, Pennsylvania, USA | 
  
           
   | 
   | 
   | Tocornalite | 
  R070693 | 
  (Ag,Hg)I (?) | 
  Michael Scott S102939 | 
  Block 14 Opencut, Broken Hill, Yancowinna Co., New South Wales, Australia | 
  
           
   | 
   | 
   | Todorokite | 
  R070257 | 
  (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O | 
  Michael Scott S102940 | 
  Todoroki mine, Shiribeshi Province, Hokkaido Island, Japan | 
  
           
   | 
   | 
   | Tokkoite | 
  R140848 | 
  K2Ca4Si7O18(OH)F | 
  Rock Currier  | 
  Magistral'nyi Area, Sirenevyi Kamen' Deposit, Murunskii Massif, Chara And Tokko Rivers Confluence, Aldan Shield, Sakha Republic, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Tolovkite | 
  R070110 | 
  IrSbS | 
  Michael Scott S105125 | 
  placer from Ust-Belsky Massif, Korjak Highand, Russia | 
  
           
   | 
   | 
   | Tomichite | 
  R070708 | 
  V3+4Ti4+3As3+O13(OH) | 
  Michael Scott S100545 | 
  Hemlo Mines, Hemlo gold deposit, Marathon, Thunder Bay District, Ontario, Canada | 
  
           
   | 
   | 
   | Tomichite | 
  R070685 | 
  V3+4Ti4+3As3+O13(OH) | 
  Michael Scott S102625 | 
  Hemlo mines, Hemlo gold deposit, Marathon, Thunder Bay District, Ontario, Canada | 
  
           
   | 
   | 
   | Tooeleite | 
  R140852 | 
  Fe3+6(AsO3)4(SO4)(OH)4·4H2O | 
  Rock Currier  | 
  U.S. mine, Gold Hill, Gold Hill District, Deep Creek Mts, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | Topaz | 
  R040121 | 
  Al2SiO4F2 | 
  University of Arizona Mineral Museum 15679 | 
  Tepetate, San Luis Potosi, Mexico | 
  
           
   | 
   | 
   | Topaz | 
  R050176 | 
  Al2SiO4F2 | 
  Marcus Origlieri  | 
  Jos Plateau, Nigeria | 
  
           
   | 
   | 
   | Topaz | 
  R050199 | 
  Al2SiO4F2 | 
  Marcus Origlieri  | 
  Madagascar | 
  
           
   | 
   | 
   | Topaz | 
  R050200 | 
  Al2SiO4F2 | 
  Marcus Origlieri  | 
  Jos Plateau, Nigeria | 
  
           
   | 
   | 
   | Topaz | 
  X050165 | 
  Al2SiO4F2 | 
  RD Shannon 62047- 102 | 
  unknown | 
  
           
   | 
   | 
   | Topaz | 
  R050404 | 
  Al2SiO4F2 | 
  Gerry Gibbs  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Topaz | 
  R050405 | 
  Al2SiO4F2 | 
  Gerry Gibbs  | 
  Amelia, Virginia, USA | 
  
           
   | 
   | 
   | Topaz | 
  R060024 | 
  Al2SiO4F2 | 
  Eric Van Valkenburg  | 
  Antonio Peireira Topaz mine, Minas Gerais, Brazil, GPS coordinates: 20 18 18 S, 43 28 37 W, 2697 ASL | 
  
           
   | 
   | 
   | Topaz | 
  R060026 | 
  Al2SiO4F2 | 
  Eric Van Valkenburg  | 
  Capao Topaz mine, Minas Gerais, Brazil, GPS Coordinates: 20 25 58 S, 43 38 25 W, 3694 ft. ASL | 
  
           
   | 
   | 
   | Tourmaline | 
  R060123 | 
   | 
  University of Arizona Mineral Museum 2268 | 
  San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Tourmaline | 
  R080010 | 
   | 
  www.multicolour.com  | 
  east Africa | 
  
           
   | 
   | 
   | Tourmaline | 
  R070563 | 
   | 
  Gemological Institute of America  30855  | 
  unknown | 
  
           
   | 
   | 
   | Tourmaline | 
  R110131 | 
   | 
  Bart Cannon  | 
  Bald Hornet area, King County, Washington, USA | 
  
           
   | 
   | 
   | Tourmaline | 
  R110132 | 
   | 
  Bart Cannon  | 
  Blue Mountain Saddle, King County, Washington, USA | 
  
           
   | 
   | 
   | Tourmaline | 
  R110133 | 
   | 
  Bart Cannon  | 
  Crystal Palace, King County, Washington, USA | 
  
           
   | 
   | 
   | Traskite | 
  R060706 | 
  Ba21Ca(Fe2+,Mn,Ti)4(Ti,Fe,Mg)12(Si12O36)(Si2O7)6(O,OH)30Cl6·14H2O | 
  Michael Scott S101208 | 
  Esquire no. 1 mine, Rush Creek, Fresno County, California, United States | 
  
           
   | 
   | 
   | Trattnerite | 
  R060623 | 
  Fe3+2(Mg3Si12)O30 | 
  Michael Scott S100821 | 
  Stradner Kogel Mountain, Wilhelmsdorf, Bad Gleichenberg, Styria, Austria | 
  
           
   | 
   | 
   | Trechmannite | 
  R130062 | 
  AgAsS2 | 
  William W. Pinch  | 
  Lengenbach quarry, Imfeld, Binn Valley, Wallis, Switzerland | 
  
           
   | 
   | 
   | Trembathite | 
  R070756 | 
  Mg3B7O13Cl | 
  Michael Scott S104098 | 
  Salt Springs deposit, Sussex, Kings Co., New Brunswick, Canada | 
  
           
   | 
   | 
   | Tremolite | 
  R040045 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 5906 | 
  Gouverneur, New York, USA | 
  
           
   | 
   | 
   | Tremolite | 
  R040109 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  University of Arizona Mineral Museum 14820 | 
  Cassiar, British Columbia, Canada | 
  
           
   | 
   | 
   | Tremolite | 
  R050167 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  Marcus Origlieri  | 
  Hunza Valley, Afghanistan | 
  
           
   | 
   | 
   | Tremolite | 
  R050173 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  Marcus Origlieri  | 
  Fort Dauphin, Madagascar | 
  
           
   | 
   | 
   | Tremolite | 
  R050210 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  Lloyd Twaites  | 
  Sugar Lake, Cherryville, British Columbia, Canada | 
  
           
   | 
   | 
   | Tremolite | 
  X050167 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  G.R. Rossman 231 | 
  Gouvernour, New York | 
  
           
   | 
   | 
   | Tremolite | 
  X050168 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  CIT 13696 | 
  Passo Cadonighino, Switzerland | 
  
           
   | 
   | 
   | Tremolite | 
  X050169 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  CIT 8038 | 
  Mt. Bity, Madagascar | 
  
           
   | 
   | 
   | Tremolite | 
  X050170 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  CIT 321 | 
  Canaan, Connecticut, USA | 
  
           
   | 
   | 
   | Tremolite | 
  X050171 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  CIT 290 | 
  St. Lawrence County, New York, USA | 
  
           
   | 
   | 
   | Tremolite | 
  X050172 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  CIT 4924 | 
  Macomb, New York, USA | 
  
           
   | 
   | 
   | Tremolite | 
  X050173 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  G.R. Rossman 1035 | 
  Haliburton, Ontario, Canada | 
  
           
   | 
   | 
   | Tremolite | 
  R050498 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  California Institute of Technology W-21014 | 
  Inyo County, California, USA | 
  
           
   | 
   | 
   | Tremolite | 
  R060311 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  Herb Obodda 005 | 
  Khyber Pass area, Khyber Agency, North-West Frontier Province, Pakistan | 
  
           
   | 
   | 
   | Tremolite | 
  R061087 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  Michael Scott S101178 | 
  Turret, Chaffee County, Colorado, USA | 
  
           
   | 
   | 
   | Tremolite | 
  R070422 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  Steve Ulatowski  | 
  Merilani Hills, Arusha, Tanzania | 
  
           
   | 
   | 
   | Tremolite | 
  R150094 | 
  ◻Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 
  UAMM 9512  | 
  Belmat, St. Lawrence Co., New York, USA | 
  
           
   | 
   | 
   | Trevorite | 
  R140860 | 
  NiFe3+2O4 | 
  Rock Currier  | 
  Bon Accord, Barberton District, Mpumalanga Province, South Africa | 
  
           
   | 
   | 
   | Trevorite | 
  R150038 | 
  NiFe3+2O4 | 
  Gunnar Farber  | 
  Agios Konstantinos, Lavrion District slag localities, Attikí Prefecture, Greece | 
  
           
   | 
   | 
   | Triangulite | 
  R140862 | 
  Al3(UO2)4(PO4)4(OH)5·5H2O | 
  Rock Currier  | 
  Kobokobo pegmatite, Lusungu River District, Sud-Kivu, Democratic Republic Of Congo | 
  
           
   | 
   | 
   | Tridymite | 
  R040143 | 
  SiO2 | 
  University of Arizona Mineral Museum 12643 | 
  Big Lue Mountain, Highway 78, Greenlee County, Arizona, USA | 
  
           
   | 
   | 
   | Tridymite | 
  R090042 | 
  SiO2 | 
  Dante Lauretta  | 
  The Fukang Pallasite meteorite, Gobi Desert, China, found in 2001 | 
  
           
   | 
   | 
   | Tridymite | 
  R090063 | 
  SiO2 | 
  Devin L. Schrader and Dante S. Lauretta  | 
  Mount Howe 88403 meteorite, likely formed during impact on a chondritic-parent body | 
  
           
   | 
   | 
   | Tridymite | 
  R160073 | 
  SiO2 | 
   PDA0058 20151002 | 
  Synthetic | 
  
           
   | 
   | 
   | Trigonite | 
  R100050 | 
  Pb3Mn2+(AsO3)2(AsO2OH) | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Trilithionite | 
  R040101 | 
  KLi1.5Al1.5(Si3Al)O10F2 | 
  University of Arizona Mineral Museum 13619 | 
  Zambezi Region, Mozambique | 
  
           
   | 
   | 
   | Trilithionite | 
  R040105 | 
  KLi1.5Al1.5(Si3Al)O10F2 | 
  University of Arizona Mineral Museum 5528 | 
  Brown Derby mine, Ohio City, Gunnison County, Colorado, USA | 
  
           
   | 
   | 
   | Trilithionite | 
  R050486 | 
  KLi1.5Al1.5(Si3Al)O10F2 | 
  California Institute of Technology W-21082 | 
  Cotopaxie, Colorado, USA | 
  
           
   | 
   | 
   | Trilithionite | 
  R060004 | 
  KLi1.5Al1.5(Si3Al)O10F2 | 
  Bob Downs  | 
  Mount Begbie, Revelstoke, British Columbia, Canada | 
  
           
   | 
   | 
   | Trinitite | 
  R160072 | 
   | 
  Jeremy Yeak  | 
  Fireball area of the first atomic bomb detonation at the Trinity test site, White Sands Missile Range, New Mexico, USA | 
  
           
   | 
   | 
   | Triphylite | 
  R050257 | 
  LiFe2+(PO4) | 
  Marcus Origlieri  | 
  Palermo mine, North Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Triphylite | 
  R050366 | 
  LiFe2+(PO4) | 
  Marcus Origlieri  | 
  Cornelia mine, Hagendorf, Bavaria, Germany | 
  
           
   | 
   | 
   | Triphylite | 
  R050424 | 
  LiFe2+(PO4) | 
  John Lucking  | 
  Karibib, Namibia | 
  
           
   | 
   | 
   | Triphylite | 
  R050494 | 
  LiFe2+(PO4) | 
  California Institute of Technology W-20810 | 
  Big Chief mine, Glendale, Pennington County, South Dakota, USA | 
  
           
   | 
   | 
   | Triphylite | 
  R050624 | 
  LiFe2+(PO4) | 
  Gemological Center  | 
  Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Triphylite | 
  R100156 | 
  LiFe2+(PO4) | 
  William W. Pinch  | 
  Conselheira Pena, Minas Geraìs, Brazil | 
  
           
   | 
   | 
   | Triplite | 
  R050186 | 
  Mn2+2(PO4)F | 
  John Lucking  | 
  Wuzhou, Guangxi Autonomous Region, China | 
  
           
   | 
   | 
   | Triplite | 
  R050226 | 
  Mn2+2(PO4)F | 
  Marcus Origlieri  | 
  Fremont County, Colorado, USA | 
  
           
   | 
   | 
   | Triplite | 
  R050615 | 
  Mn2+2(PO4)F | 
  University of Arizona Mineral Museum 3010 | 
  Vienna, Austria | 
  
           
   | 
   | 
   | Triplite | 
  R060743 | 
  Mn2+2(PO4)F | 
  Herb Obodda 098 | 
  Shigar Valley, northeast of Skardu, Baltistan, Pakistan | 
  
           
   | 
   | 
   | Triplite | 
  R060935 | 
  Mn2+2(PO4)F | 
  Herb Obodda  | 
  near Alchuri, Shigar Valley, Pakistan | 
  
           
   | 
   | 
   | Triplite | 
  R070645 | 
  Mn2+2(PO4)F | 
  Dudley Blauwet Gems  | 
  10 km east of Shah Nassir Peak, Braldu Valley, Baltistan, Northern Areas, Pakistan | 
  
           
   | 
   | 
   | Tripuhyite | 
  R070383 | 
  Fe3+Sb5+O4 | 
  Michael Scott S104750 | 
  Cetine mine, Chiusdino, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | Tritomite-(Ce) | 
  R060046 | 
  Ce5(SiO4,BO4)3(OH,O) | 
  University of Arizona Mineral Museum 16138 | 
  Langesundfjord, Norway | 
  
           
   | 
   | 
   | Tritomite-(Ce) | 
  R060370 | 
  Ce5(SiO4,BO4)3(OH,O) | 
  Michael Scott S100018 | 
  Norra Karr Complex, near Granna, Ostergotsland, Sweden | 
  
           
   | 
   | 
   | Troilite | 
  R070242 | 
  FeS | 
  Michael Scott S104076 | 
  Union Mine (Salt Lake-California Mine), Low Divide District, Del Norte County, California, USA | 
  
           
   | 
   | 
   | Troilite | 
  R070213 | 
  FeS | 
  Michael Scott S104111 | 
  Bjurbole Borga, Nyland, Finland | 
  
           
   | 
   | 
   | Trolleite | 
  R050425 | 
  Al4(PO4)3(OH)3 | 
  Marcus Origlieri  | 
  Halsjoberg, Varmland, Sweden | 
  
           
   | 
   | 
   | Trolleite | 
  R050545 | 
  Al4(PO4)3(OH)3 | 
  University of Arizona Mineral Museum 9814 | 
  near Laws, Mono County, California, USA | 
  
           
   | 
   | 
   | Trona | 
  R050228 | 
  Na3(HCO3)(CO3)·2H2O | 
  Marcus Origlieri  | 
  Stauffer mine, Green River, Wyoming, USA | 
  
           
   | 
   | 
   | Trona | 
  R050499 | 
  Na3(HCO3)(CO3)·2H2O | 
  California Institute of Technology W-20820 | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Tsaregorodtsevite | 
  R060033 | 
  N(CH3)4Si4(SiAl)O12 | 
  University of Arizona Mineral Museum 16838 | 
  Yaruta, Man-Hambo Mountain Range, North Urals, Russia | 
  
           
   | 
   | 
   | Tsaregorodtsevite | 
  R060373 | 
  N(CH3)4Si4(SiAl)O12 | 
  Michael Scott S100284 | 
  Mun-Hambo, north Urals, Hanty- Manskiisky, Autonomous District, Russia | 
  
           
   | 
   | 
   | Tschermigite | 
  R050276 | 
  (NH4)Al(SO4)2·12H2O | 
  Marcus Origlieri  | 
  near Wamsutter, Wyoming, USA | 
  
           
   | 
   | 
   | Tschernichite | 
  R060482 | 
  CaAl2Si6O16·8H2O | 
  Michael Scott S100030 | 
  Neer Road Pit, Goble, Columbia County, Oregon, USA | 
  
           
   | 
   | 
   | Tsepinite-Ca | 
  R060833 | 
  (Ca,K,Na)2-x(Ti,Nb)2(Si4O12)(OH,O)2·4H2O | 
  Michael Scott S101008 | 
  Hackmann Valley, Yukspor Mountain, Khibiny, Kola, Russia | 
  
           
   | 
   | 
   | Tsepinite-K | 
  R070215 | 
  (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3H2O | 
  Michael Scott S100460 | 
  Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaya Oblast'; Northern Region, Russia | 
  
           
   | 
   | 
   | Tsepinite-Na | 
  R070241 | 
  (Na,H3O,K,Sr,Ba,◻)2(Ti,Nb)2(Si4O12)(OH,O)2·3H2O | 
  Michael Scott S100450 | 
  Lepkhe-Nel'm Mt. (Lepkhe-Nelm Mt.), Seidozero Lake, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Tsumcorite | 
  R060081 | 
  PbZn2(AsO4)2·2H2O | 
  Marcus Origlieri  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Tsumcorite | 
  R100185 | 
  PbZn2(AsO4)2·2H2O | 
  Marcus Origlieri  | 
  Mina Ojuela (Campo Sur), Mapimi, Durango, Mexico | 
  
           
   | 
   | 
   | Tsumcorite | 
  R110036 | 
  PbZn2(AsO4)2·2H2O | 
  William W Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Tsumebite | 
  R070446 | 
  Pb2Cu(PO4)(SO4)(OH) | 
  Joe Ruiz  | 
  Tiger mine, Collins Vein, Tiger, Arizona, USA | 
  
           
   | 
   | 
   | Tsumebite | 
  R080020 | 
  Pb2Cu(PO4)(SO4)(OH) | 
  William W. Pinch  | 
  Mex-Tex mine, Bingham, Hansonburg District, Socorro County, New Mexico, USA | 
  
           
   | 
   | 
   | Tsumgallite | 
  R100125 | 
  GaO(OH) | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Tsumoite | 
  R080089 | 
  BiTe | 
  Michael Scott S104089 | 
  Sredniy Skarn, Tyrnyauz Mo-W Deposit, Baksan Valley, Kabardino-Balkarian Republic, Northern Caucasus Region, Russia | 
  
           
   | 
   | 
   | Tugarinovite | 
  R100218 | 
  MoO2 | 
  Mike Carducci, Climax Molybdenum Technology Center   | 
  Mining concentrate | 
  
           
   | 
   | 
   | Tugtupite | 
  R050278 | 
  Na4BeAlSi4O12Cl | 
  Marcus Origlieri  | 
  Kvanefjeld, Ilimaussag, Greenland | 
  
           
   | 
   | 
   | Tugtupite | 
  R050562 | 
  Na4BeAlSi4O12Cl | 
  Dave Bunk Minerals  | 
  Kvanefjeld, Ilimaussag, Greenland | 
  
           
   | 
   | 
   | Tuite | 
  R120115 | 
  Ca3(PO4)2 | 
  Shuangmeng Zhai and Xiande Xie  | 
  Synthetic, at P = 15 GPa and T = 1300 deg C | 
  
           
   | 
   | 
   | Tumchaite | 
  R070047 | 
  Na2ZrSi4O11·2H2O | 
  Michael Scott S105124 | 
  Vuoriyarvi Massif, Murmansk region, Russia | 
  
           
   | 
   | 
   | Tundrite-(Ce) | 
  R060837 | 
  Na2Ce2TiO2(SiO4)(CO3)2 | 
  Michael Scott S100907 | 
  Barkeviksjaer, Norway | 
  
           
   | 
   | 
   | Tundrite-(Ce) | 
  R130563 | 
  Na2Ce2TiO2(SiO4)(CO3)2 | 
  Don Doell  | 
  Poudrette quarry, Mount St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Tundrite-(Ce) | 
  R130564 | 
  Na2Ce2TiO2(SiO4)(CO3)2 | 
  Rock Currier  | 
  Ilimaussaq complex, Narsaq, Kitaa, Greenland | 
  
           
   | 
   | 
   | Tundrite-(Nd) | 
  R130565 | 
  Na2Nd2TiO2(SiO4)(CO3)2 | 
  Rock Currier  | 
  Ilimaussaq complex, Narsaq, Kitaa, Greenland | 
  
           
   | 
   | 
   | Tunellite | 
  R050283 | 
  SrB6O9(OH)2·3H2O | 
  Marcus Origlieri  | 
  Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Tunellite | 
  R070755 | 
  SrB6O9(OH)2·3H2O | 
  Michael Scott S103452 | 
  Jennifer mine, U.S. Borax Mine, Boron, Kramer District, Kern County, California, USA | 
  
           
   | 
   | 
   | Tungstenite | 
  R070616 | 
  WS2 | 
  James Shigley  | 
  Emma mine, Little Cottonwood Canyon, Salt Lake County, Utah, USA | 
  
           
   | 
   | 
   | Tungstite | 
  R050452 | 
  WO3·H2O | 
  University of Arizona Mineral Museum 13415 | 
  Sinaloa (near shared border with Chihuahua and Durango), Mexico | 
  
           
   | 
   | 
   | Tungusite | 
  R070757 | 
  Ca14Fe2+9Si24O60(OH)22 | 
  Michael Scott S104118 | 
  Nizhnyaya Tunguska River Basin (Lower Tunguska River), Evenkia (Evenkiyskiy Autonomous okrug), Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai), Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Tunisite | 
  R060776 | 
  NaCa2Al4(CO3)4(OH)8Cl | 
  Michael Scott S101114 | 
  Condorcet, Drome, France | 
  
           
   | 
   | 
   | Tuperssuatsiaite | 
  R050223 | 
  Na2(Fe3+,Mn2+)3Si8O20(OH)2·4H2O | 
  Marcus Origlieri  | 
  Aris phonolite, Windhoek, Namibia | 
  
           
   | 
   | 
   | Turkestanite | 
  R060525 | 
  (K,◻)(Ca,Na)2ThSi8O20·nH2O | 
  Michael Scott S100210 | 
  DeMix Quarry, Mont St. Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Turneaureite | 
  R070758 | 
  Ca5(AsO4)3Cl | 
  Michael Scott S104122 | 
  ZCA mine No. 4 (St Joe mine), Balmat, Balmat-Edwards Zinc District, St Lawrence County, New York, USA | 
  
           
   | 
   | 
   | Turquoise | 
  R050225 | 
  CuAl6(PO4)4(OH)8·4H2O | 
  Marcus Origlieri  | 
  Badger Prospect, Lander County, Nevada, USA | 
  
           
   | 
   | 
   | Turquoise | 
  R050418 | 
  CuAl6(PO4)4(OH)8·4H2O | 
  Marcus Origlieri  | 
  Panoche Valley, San Benito County, California, USA | 
  
           
   | 
   | 
   | Turquoise | 
  R050554 | 
  CuAl6(PO4)4(OH)8·4H2O | 
  Dave Bunk Minerals  | 
  Bishop mine, Lynch Station, Campbell County, Virginia, USA | 
  
           
   | 
   | 
   | Turtmannite | 
  R070089 | 
  Mn25O5(VO4)3(SiO4)3(OH)20 | 
  Michael Scott S105123 | 
  Pipjigletscher, Turtmanntal, Wallis, Switzerland | 
  
           
   | 
   | 
   | Tuscanite | 
  R050324 | 
  KCa6(Si,Al)10O22(SO4,CO3)2(OH)·H2O | 
  Marcus Origlieri  | 
  Valle Biachella, Sacrofano, Roma, Lazio, Italy | 
  
           
   | 
   | 
   | Tuzlaite | 
  R120036 | 
  NaCaB5O8(OH)2·3H2O | 
  Bob Jenkins  | 
  Tuzla mine, Tuzla, Tuzla Canton, Federation of Bosnia and Herzegovina, Bosnia and Herzegovina | 
  
           
   | 
   | 
   | Tvalchrelidzeite | 
  R061128 | 
  Hg3SbAsS3 | 
  Michael Scott S105127 | 
  Gomi deposit, Rioni River Valley, Caucacus Mountains, Georgia | 
  
           
   | 
   | 
   | Tveitite-(Y) | 
  R060895 | 
  (Y,Na)6(Ca,Na,REE)12(Ca,Na)F42 | 
  Michael Scott S100983 | 
  Rov-Gora, West Keivy, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Tweddillite | 
  R120125 | 
  CaSrMn3+2Al(Si2O7)(SiO4)O(OH) | 
  William W. Pinch  | 
  Wessels mine, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | Tychite | 
  R050218 | 
  Na6Mg2(CO3)4(SO4) | 
  Marcus Origlieri  | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Tychite | 
  R060700 | 
  Na6Mg2(CO3)4(SO4) | 
  Michael Scott S100041 | 
  Borax Lake, Lake County, California | 
  
           
   | 
   | 
   | Tyrolite | 
  R050231 | 
  Ca2Cu9(AsO4)4(CO3)(OH)8·11H2O | 
  Marcus Origlieri  | 
  Tyrol, Austria | 
  
           
   | 
   | 
   | Tyrolite | 
  R050571 | 
  Ca2Cu9(AsO4)4(CO3)(OH)8·11H2O | 
  University of Arizona Mineral Museum 8693 | 
  Penamellera, Spain | 
  
           
   | 
   | 
   | Tyrolite | 
  R060264 | 
  Ca2Cu9(AsO4)4(CO3)(OH)8·11H2O | 
  Michael Scott S100064 | 
  Lovelock mine, Bolivia, Cottonwood Canyon, Churchill County, Nevada, USA | 
  
           
   | 
   | 
   | Tyrrellite | 
  R060481 | 
  Cu(Co,Ni)2Se4 | 
  Michael Scott S100238 | 
  Eagle Claims, near Hal Lake, Beaverlodge Lake area, Saskatchewan, Canada | 
  
           
   | 
   | 
   | Tyuyamunite | 
  R060983 | 
  Ca(UO2)2(VO4)2·5-8H2O | 
  Bob Jenkins  | 
  Ridenour mine, Coconino, Arizona, USA | 
  
           
   | 
   | 
   | Tyuyamunite | 
  R070232 | 
  Ca(UO2)2(VO4)2·5-8H2O | 
  Michael Scott S105983 | 
  Tyuya-Muyun Cu-V-U Deposit, Tyuya-Muyun Hill, Fergana Valley, Osh Oblast, Kyrgyzstan | 
  
           
   | 
   | 
   | Uchucchacuaite | 
  R070760 | 
  AgMnPb3Sb5S12 | 
  Michael Scott S106059 | 
  Inakuraishi mine, Shakotan peninsula, Shiribeshi Province, Hokkaido Island, Japan | 
  
           
   | 
   | 
   | Uchucchacuaite | 
  R100213 | 
  AgMnPb3Sb5S12 | 
  Mark N. Feinglos  | 
  Uchuc-Chacua, Lima, Peru | 
  
           
   | 
   | 
   | Ulexite | 
  R050062 | 
  NaCaB5O6(OH)6·5H2O | 
  Rock Currier  | 
  California, USA | 
  
           
   | 
   | 
   | Ulexite | 
  X050174 | 
  NaCaB5O6(OH)6·5H2O | 
  Caltech  | 
  Boron, California, USA | 
  
           
   | 
   | 
   | Ulexite | 
  R050491 | 
  NaCaB5O6(OH)6·5H2O | 
  California Institute of Technology W-20891 | 
  Open Pit mine, Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | Ullmannite | 
  R050247 | 
  NiSbS | 
  Marcus Origlieri  | 
  Salchendorf, Siegerland, North Rhine-Westphalia, Germany | 
  
           
   | 
   | 
   | Ullmannite | 
  R070541 | 
  NiSbS | 
  James Shigley  | 
  Oms, Pyrennes Mountains, Spain | 
  
           
   | 
   | 
   | Ulrichite | 
  R070748 | 
  CaCu(UO2)(PO4)2·4H2O | 
  Royal Ontario Museum M52951 | 
  Lake Boga Quarry, Lake Boga, Victoria, Australia | 
  
           
   | 
   | 
   | Umangite | 
  R070019 | 
  Cu3Se2 | 
  Mark Mauthner 3340 | 
  Ato Bay, Beaverlodge Lake, Saskatchewan, Canada | 
  
           
   | 
   | 
   | Umohoite | 
  R061135 | 
  (UO2)(MoO4)·2H2O | 
  Michael Scott S105129 | 
  Kyzulsai Mo-U deposit, south Kazakhstan | 
  
           
   | 
   | 
   | unknown | 
  D120012 | 
   | 
  David Blake  | 
  Synthetic | 
  
           
   | 
   | 
   | Uralborite | 
  R061140 | 
  CaB2O2(OH)4 | 
  Michael Scott S105128 | 
  Fuka mine, Bicchu-cho, Okayama Prefecture, Japan | 
  
           
   | 
   | 
   | Uralolite | 
  R070749 | 
  Ca2Be4(PO4)3(OH)3·5H2O | 
  Michael Scott S101629 | 
  Spodumene prospect (Brandrücken exploration adit), Brandrücken, Moschkogel Mt. - Weinebene area, Koralpe Mts, Carinthia, Austria | 
  
           
   | 
   | 
   | Uramarsite | 
  R061122 | 
  (NH4)(UO2)(AsO4)·3H2O | 
  Michael Scott S105121 | 
  Bota-Burum Uranium deposit, Kazakhstan | 
  
           
   | 
   | 
   | Uraninite | 
  R070747 | 
  UO2 | 
  Michael Scott S101632 | 
  Topsham, Sagadahoc County, Maine, USA | 
  
           
   | 
   | 
   | Uranophane | 
  R050380 | 
  Ca(UO2)2(SiO3OH)2·5H2O | 
  University of Arizona Mineral Museum 5973 | 
  Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Uranophane | 
  R070038 | 
  Ca(UO2)2(SiO3OH)2·5H2O | 
  Michael Scott S105086 | 
  Kyzulsai Mo-U deposit, south Kazakhstan | 
  
           
   | 
   | 
   | Uranophane | 
  R070584 | 
  Ca(UO2)2(SiO3OH)2·5H2O | 
  James Shigley  | 
  Wolsendorf, Schwandorf, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Uranopilite | 
  R060374 | 
  (UO2)6(SO4)O2(OH)6·14H2O | 
  Michael Scott S100025 | 
  Apex mine, Lander County, Nevada, USA | 
  
           
   | 
   | 
   | Urusovite | 
  R061114 | 
  CuAlO(AsO4) | 
  Michael Scott S105122 | 
  Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | Ushkovite | 
  R060954 | 
  MgFe3+2(PO4)2(OH)2·8H2O | 
  Bob Jenkins  | 
  Linópolis, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Ussingite | 
  R070562 | 
  Na2AlSi3O8(OH) | 
  James Shigley  | 
  Tareq Slope, Ilimaussaq, Narsaq, Kitaa Province, Greenland | 
  
           
   | 
   | 
   | Utahite | 
  R190036 | 
  MgCu2+4Zn2Te6+3O14(OH)4·6H2O | 
  Peter Megaw  | 
  Tombstone, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | Uvarovite | 
  R060477 | 
  Ca3Cr2(SiO4)3 | 
  Michael Scott S100206 | 
   Saranovskiy mine, Sarany, Ural Mountains, Russia | 
  
           
   | 
   | 
   | Uvarovite | 
  R061041 | 
  Ca3Cr2(SiO4)3 | 
  Royal Ontario Museum M52536 | 
  Outokumpu, Finland | 
  
           
   | 
   | 
   | Uzonite | 
  R100020 | 
  As4S5 | 
  William Pinch  | 
  Lazaresti, Harghita County, Romania | 
  
           
   | 
   | 
   | Vaesite | 
  R070763 | 
  NiS2 | 
  Michael Scott S101616 | 
  Shaba (Katanga), Congo (Zaïre) | 
  
           
   | 
   | 
   | Valentinite | 
  R050389 | 
  Sb2O3 | 
  University of Arizona Mineral Museum 2886 | 
  Bohemia Region, Pribram, Czech Republic | 
  
           
   | 
   | 
   | Valentinite | 
  R060516 | 
  Sb2O3 | 
  Michael Scott S100020 | 
  Sombrerete, Zacatecas, Mexico | 
  
           
   | 
   | 
   | Valentinite | 
  R120096 | 
  Sb2O3 | 
  Rob Lavinsky  | 
  China | 
  
           
   | 
   | 
   | Valleriite | 
  R080119 | 
  2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)2] | 
  Joan Abella i Creus  | 
  Transvaal, Complexe, Palabora, Sudáfrica | 
  
           
   | 
   | 
   | Valleriite | 
  R070750 | 
  2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)2] | 
  Michael Scott S106022 | 
  Talnakh Cu-Ni Deposit, Taimyr Peninsula, Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | Vanadinite | 
  R050171 | 
  Pb5(VO4)3Cl | 
  Marcus Origlieri  | 
  Hamburg mine, La Paz County, Arizona, USA | 
  
           
   | 
   | 
   | Vanadinite | 
  R050189 | 
  Pb5(VO4)3Cl | 
  Dave Bunk Minerals  | 
  Puzzler mine, Yuma County, Arizona, USA | 
  
           
   | 
   | 
   | Vanadinite | 
  R050376 | 
  Pb5(VO4)3Cl | 
  Eugene Schlepp  | 
  Morocco | 
  
           
   | 
   | 
   | Vanadinite | 
  R050530 | 
  Pb5(VO4)3Cl | 
  University of Arizona Mineral Museum 8261 | 
  Hillsboro, Sierra County, New Mexico, USA | 
  
           
   | 
   | 
   | Vanadinite | 
  R050533 | 
  Pb5(VO4)3Cl | 
  University of Arizona Mineral Museum 1028 | 
  Ahumada mine, Los Lamentos, Mexico | 
  
           
   | 
   | 
   | Vanadiocarpholite | 
  R080099 | 
  Mn2+V3+AlSi2O6(OH)4 | 
  Michael Scott S101686 | 
  Molinello mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Vanalite | 
  R061117 | 
  NaAl8V10O38·30H2O | 
  Michael Scott S105126 | 
  Kurumsak deposit, Karatau, south Kazakhstan | 
  
           
   | 
   | 
   | Vandenbrandeite | 
  R080113 | 
  Cu(UO2)(OH)4 | 
  William W. Pinch  | 
  Musonoi mine, Kolwezi, Katanga, Democratic Republic of Congo | 
  
           
   | 
   | 
   | Vandenbrandeite | 
  R080114 | 
  Cu(UO2)(OH)4 | 
  William W. Pinch  | 
  Shinkolobwe Mine, Shaba, Democratic Republic of Congo | 
  
           
   | 
   | 
   | Vandendriesscheite | 
  R090064 | 
  Pb1.6(UO2)10O6(OH)11·11H2O | 
  William W. Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Vanpeltite | 
  R230006 | 
  (Mo2O5)(S4+O3)·4H2O | 
  Brent Thorne  | 
  Freedom No. 2 mine, Marysvale District, Piute County, Utah, USA | 
  
           
   | 
   | 
   | Vantasselite | 
  R060371 | 
  Al4(PO4)3(OH)3·9H2O | 
  Michael Scott S100281 | 
  Bihain, Stavelot Massif, Belgium | 
  
           
   | 
   | 
   | Vanuralite | 
  R050544 | 
  Al(UO2)2(VO4)2(OH)·8.5H2O | 
  University of Arizona Mineral Museum 12564 | 
  Mounana mine, Franceville, Haut-Ogooué, Gabon | 
  
           
   | 
   | 
   | Varennesite | 
  R110194 | 
  Na8Mn2Si10O25(OH,Cl)2·12H2O | 
  Donald Doell  | 
  Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Monteregie, Quebec, Canada | 
  
           
   | 
   | 
   | Variscite | 
  R040180 | 
  Al(PO4)·2H2O | 
  University of Arizona Mineral Museum 12853 | 
  de Linde mine, Montgomery County, Arkansas, USA | 
  
           
   | 
   | 
   | Variscite | 
  R050467 | 
  Al(PO4)·2H2O | 
  University of Arizona Mineral Museum 2454 | 
  Garland County, Arkansas, USA | 
  
           
   | 
   | 
   | Variscite | 
  R100222 | 
  Al(PO4)·2H2O | 
  Luiz Menezes  | 
  Canarana, Mato Grosso, Brazil | 
  
           
   | 
   | 
   | Variscite | 
  R110139 | 
  Al(PO4)·2H2O | 
  Luiz Menezes  | 
  Boa Vista pegmatite, Conselheiro Pena, Doce valley, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Varulite | 
  R060740 | 
  Na2Mn(MnFe3+)(PO4)3 | 
  Michael Scott S101256 | 
  Kaatiala, Finland | 
  
           
   | 
   | 
   | Varulite | 
  R160033 | 
  Na2Mn(MnFe3+)(PO4)3 | 
  Jaroslav Hyrŝl  | 
  Nancy Pegmatite, Argentina | 
  
           
   | 
   | 
   | Varulite | 
  R160052 | 
  Na2Mn(MnFe3+)(PO4)3 | 
  Donald Doell  | 
  Nancy Pegmatite, Chacabuco Dept, San Luis, Argentina | 
  
           
   | 
   | 
   | Vasilite | 
  R070716 | 
  (Pd,Cu)16(S,Te)7 | 
  Michael Scott S105843 | 
  Mount Filipp, Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Västmanlandite-(Ce) | 
  R110171 | 
  Ce3CaMg2Al2Si5O19(OH)2F | 
  Bob Jenkins   | 
  Bastnas, Riddarhyttan, Sweden | 
  
           
   | 
   | 
   | Vauquelinite | 
  R060676 | 
  CuPb2(CrO4)(PO4)(OH) | 
  Michael Scott S100222 | 
  Beresovsk, near Ekaterinburg, Ural Mountains, Russia | 
  
           
   | 
   | 
   | Vauquelinite | 
  R060926 | 
  CuPb2(CrO4)(PO4)(OH) | 
  Bob Jenkins  | 
  Hardshell mine, Patagonia, Arizona, USA | 
  
           
   | 
   | 
   | Vauxite | 
  X060017 | 
  Fe2+Al2(PO4)2(OH)2·6H2O | 
  University of Arizona Mineral Museum 8499 | 
  Siglo XX mine, Llallagua, Bustillos, Potosi, Bolivia | 
  
           
   | 
   | 
   | Vauxite | 
  R070421 | 
  Fe2+Al2(PO4)2(OH)2·6H2O | 
  James Shigley  | 
  Llallagua, Bustillos Province, Potosi, Bolivia | 
  
           
   | 
   | 
   | Väyrynenite | 
  R050243 | 
  BeMn2+(PO4)(OH) | 
  Marcus Origlieri  | 
  Viitaniemi pegmatite, Erajarvi, Orivesi, Finland | 
  
           
   | 
   | 
   | Väyrynenite | 
  R050590 | 
  BeMn2+(PO4)(OH) | 
  Wayne Thompson  | 
  Shengus, Pakistan | 
  
           
   | 
   | 
   | Veatchite | 
  R060348 | 
  Sr2B11O16(OH)5·H2O | 
  Michael Scott S100082 | 
  1360' level, 2S Drift, Billie mine, Death Valley, Inyo County, California, USA | 
  
           
   | 
   | 
   | Veenite | 
  R130407 | 
  Pb2(Sb,As)2S5 | 
  Rock Currier  | 
  Madoc, Ontario, Canada | 
  
           
   | 
   | 
   | Vergasovaite | 
  R061141 | 
  Cu3O(MoO4)(SO4) | 
  Michael Scott S105130 | 
  Tolbachik Volcano, Kamchatka, Russia | 
  
           
   | 
   | 
   | Vermiculite | 
  R050490 | 
  Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O | 
  California Institute of Technology W-20939 | 
  near Tonopah, Nevada, USA | 
  
           
   | 
   | 
   | Vernadite | 
  R080100 | 
  (Mn,Fe,Ca,Na)(O,OH)2·nH2O | 
  Michael Scott S1003673 | 
  Serra Branca pegmatite, Pedra Lavrada, Paraíba, Brazil | 
  
           
   | 
   | 
   | Verplanckite | 
  R050265 | 
  Ba4Mn2+2Si4O12(OH,H2O)3Cl3 | 
  Marcus Origlieri  | 
  Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Vertumnite | 
  R070063 | 
  Ca4Al4Si4O6(OH)24·3H2O | 
  Bob Jenkins  | 
  Ettringer, Bellerberg Mt, Eifel mountains, Germany | 
  
           
   | 
   | 
   | Vésigniéite | 
  R120149 | 
  Cu3Ba(VO4)2(OH)2 | 
  Marcus Origlieri  | 
  Mina Milpillas, Municipio de Santa Cruz, Sonora, Mexico | 
  
           
   | 
   | 
   | Vesuvianite | 
  R050056 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  Tony Gordian  | 
  Jeffrey Quarry, Asbestos, Quebec, Canada | 
  
           
   | 
   | 
   | Vesuvianite | 
  R050035 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  University of Arizona Mineral Museum 6954 | 
  Olmsteadville, New York, USA | 
  
           
   | 
   | 
   | Vesuvianite | 
  R050233 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  Marcus Origlieri  | 
  Ludwig, Nevada, USA | 
  
           
   | 
   | 
   | Vesuvianite | 
  X050176 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  RD Shannon 62047- 18 | 
  Val D'Aosta, Italy | 
  
           
   | 
   | 
   | Vesuvianite | 
  R050489 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  California Institute of Technology W-20938 | 
  Crestmore Quarry, Riverside County, California, USA | 
  
           
   | 
   | 
   | Vesuvianite | 
  R060170 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  Guy Ouellet  | 
  Jeffrey mine, Asbestos, Quebec, Canada | 
  
           
   | 
   | 
   | Vesuvianite | 
  R060532 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  Michael Scott S100121 | 
  Jeffrey mine, Asbestos, Quebec, Canada | 
  
           
   | 
   | 
   | Vesuvianite | 
  R060902 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  Michael Scott S100342 | 
  Jeffrey mine, Asbestos, Quebec, Canada | 
  
           
   | 
   | 
   | Vesuvianite | 
  R070226 | 
  (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 
  Michael Scott S100462 | 
  Lupikko Mine, Pitkyaranta (Pitkäranta) District, Ladoga Region, Karelia Republic,  Northern Region, Russia | 
  
           
   | 
   | 
   | Veszelyite | 
  R150143 | 
  (Cu,Zn)2Zn(PO4)(OH)3·2H2O | 
  University of Arizona Mineral Museum 2731 | 
  Katanga, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | Veszelyite | 
  R070312 | 
  (Cu,Zn)2Zn(PO4)(OH)3·2H2O | 
  James Shigley  | 
  Black Pine mine, Flint Creek Valley, near Philipsburg, Granite County, Montana, USA | 
  
           
   | 
   | 
   | Veszelyite | 
  R150144 | 
  (Cu,Zn)2Zn(PO4)(OH)3·2H2O | 
  Leor Goldberg  | 
  Hisaichi Mine, Nakagawa, Akita Prefecture, Japan | 
  
           
   | 
   | 
   | Veszelyite | 
  R160003 | 
  (Cu,Zn)2Zn(PO4)(OH)3·2H2O | 
  Renato and Adriana Pagano  | 
  Laochang ore field, Gejiu Co., Honghe Autonomous Prefecture, Yunnan Province, China | 
  
           
   | 
   | 
   | Vigezzite | 
  R060584 | 
  (Ca,Ce)(Nb,Ta,Ti)2O6 | 
  Luiz Menezes and Michael Scott S100789 | 
  Jacupiranga mine, Cajati, São Paulo, Southeast Region, Brazil | 
  
           
   | 
   | 
   | Vigezzite | 
  R120132 | 
  (Ca,Ce)(Nb,Ta,Ti)2O6 | 
  Luiz Menezes  | 
  Jacupiranga mine, Cajati, São Paulo, Southeast Region, Brazil | 
  
           
   | 
   | 
   | Viitaniemiite | 
  R060052 | 
  NaCaAl(PO4)F3 | 
  Marcus Origlieri  | 
  Paprook, Afghanistan | 
  
           
   | 
   | 
   | Villiaumite | 
  R060916 | 
  NaF | 
  Royal Ontario Museum M52436 | 
  St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Violarite | 
  R060846 | 
  FeNi2S4 | 
  Michael Scott S100939 | 
  Perseverance mine, Agnew, Western Australia | 
  
           
   | 
   | 
   | Virgilluethite | 
  R220017 | 
  MoO3·H2O | 
  Ron Gibbs  | 
  Cooke's Peak, Cookes Range, Luna County, New Mexico, USA | 
  
           
   | 
   | 
   | Viséite | 
  R060544 | 
  Ca10Al24(PO4)14(SiO4)6F3O13·72H2O | 
  Michael Scott S100015 | 
  Champion mine, White Mountains, Mono County, California, USA | 
  
           
   | 
   | 
   | Vishnevite | 
  R061139 | 
  Na8(Al6Si6)O24(SO4)·2H2O | 
  Michael Scott S101512 | 
  Vishnevyite Mountains, Urals, U.S.S.R. | 
  
           
   | 
   | 
   | Vismirnovite | 
  R070216 | 
  ZnSn(OH)6 | 
  Michael Scott S100453 | 
  Mushiston Deposit, Pendzhikent, Kaznok Valley, Zeravshan Range, Viloyati Sughd (Viloyati Khodzhent; Viloyati Leninabad), Tajikistan | 
  
           
   | 
   | 
   | Vistepite | 
  R070712 | 
  Mn4SnB2O2(Si2O7)2(OH)2 | 
  Michael Scott S100544 | 
  Rhodonite occurrence, Muzeinyi Valley, Inyl'chek Range, Issyk-Kul'skaya Oblast, Kyrgyzstan | 
  
           
   | 
   | 
   | Vivianite | 
  R040185 | 
  Fe2+3(PO4)2·8H2O | 
  University of Arizona Mineral Museum 11555 | 
  Siglo XX mine, Llallagua, Bustillos, Potosi, Bolivia | 
  
           
   | 
   | 
   | Vivianite | 
  R050076 | 
  Fe2+3(PO4)2·8H2O | 
  Rock Currier  | 
  near Canutillos mine, Potosi, Saavedra, Bolivia | 
  
           
   | 
   | 
   | Vivianite | 
  R050464 | 
  Fe2+3(PO4)2·8H2O | 
  University of Arizona Mineral Museum 11555 | 
  Siglo XX mine, Llallagua, Potosi, Bolivia | 
  
           
   | 
   | 
   | Vivianite | 
  R050596 | 
  Fe2+3(PO4)2·8H2O | 
  Barb Dutrow  | 
  Chernomorskiy Quarry, near Kertch City, Crimea Peninsula, Ukraine | 
  
           
   | 
   | 
   | Vivianite | 
  R060025 | 
  Fe2+3(PO4)2·8H2O | 
  Eric Van Valkenburg  | 
  Gypsy mine, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Vivianite | 
  R070331 | 
  Fe2+3(PO4)2·8H2O | 
  Mark Mauthner 3369 | 
  Big Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Vladimirite | 
  R080001 | 
  Ca4(AsO4)2(AsO3OH)·4H2O | 
  Bob Jenkins  | 
  Cobriza mine, Copiapó, Chile | 
  
           
   | 
   | 
   | Vladimirite | 
  R100075 | 
  Ca4(AsO4)2(AsO3OH)·4H2O | 
  Bob Jenkins  | 
  Ait Ahmane vein No. 53, Bou Azzer district, Morroco | 
  
           
   | 
   | 
   | Vladimirivanovite | 
  R130034 | 
  Na6Ca2[Al6Si6O24](SO4,S3,S2,Cl)2·H2O | 
  Anatoly Sapozhnikov  | 
  Southwestern Baikal region (Irkutsk region), Russia | 
  
           
   | 
   | 
   | Vlasovite | 
  R060913 | 
  Na2ZrSi4O11 | 
  Royal Ontario Museum M52456 | 
  Kipawa complex, Quebec, Canada | 
  
           
   | 
   | 
   | Vlodavetsite | 
  R070736 | 
  Ca2Al(SO4)2F2Cl·4H2O | 
  Michael Scott S100547 | 
  Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia | 
  
           
   | 
   | 
   | Voglite | 
  R050663 | 
  Ca2Cu(UO2)(CO3)4·6H2O | 
  University of Arizona Mineral Museum 9759 | 
  White Canyon #1 mine, Frey Point, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Volaschioite | 
  R130078 | 
  Fe4(SO4)O2(OH)6·2H2O | 
  Cristian Biagioni  | 
  Fornovolasco, Apuan Alps, Tuscany, Italy | 
  
           
   | 
   | 
   | Volborthite | 
  R050249 | 
  Cu3V2O7(OH)2·2H2O | 
  Marcus Origlieri  | 
  Carlin Gold mine, Elko, Lynn District, Eureka County, Nevada, USA | 
  
           
   | 
   | 
   | Volborthite | 
  R050216 | 
  Cu3V2O7(OH)2·2H2O | 
  Marcus Origlieri  | 
  Monument Valley, White Canyon-Monument Valley District, Apache & Navajo Counties, Arizona, USA | 
  
           
   | 
   | 
   | Volborthite | 
  R070710 | 
  Cu3V2O7(OH)2·2H2O | 
  Michael Scott S101530 | 
  Newmont Gold mine, Carlin District, Elko County, Nevada,  USA | 
  
           
   | 
   | 
   | Volborthite | 
  R120063 | 
  Cu3V2O7(OH)2·2H2O | 
  Evan Jones  | 
  Milpillas mine, Municipio de Santa Cruz, Sonora, Mexico | 
  
           
   | 
   | 
   | Volkovskite | 
  R110151 | 
  KCa4B22O32(OH)10Cl·4H2O | 
  Donald M Doell and Brian Roulston  | 
  Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Voltaite | 
  R060237 | 
  K2Fe2+5Fe3+3Al(SO4)12·18H2O | 
  University of Arizona Mineral Museum 15636 | 
  Dexter no. 7 mine, Calf Mesa, San Rafael Swell, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Vonsenite | 
  R050221 | 
  Fe2+2Fe3+O2(BO3) | 
  Marcus Origlieri  | 
  Monchi mine, Burguillos del Cerro, Badajoz, Extremadura, Spain | 
  
           
   | 
   | 
   | Vonsenite | 
  R050477 | 
  Fe2+2Fe3+O2(BO3) | 
  California Institute of Technology W-20961 | 
  North Hill, Riverside, California, USA | 
  
           
   | 
   | 
   | Vuagnatite | 
  R050397 | 
  CaAlSiO4(OH) | 
  Marcus Origlieri  | 
  Red Mountain, Mendocino County, California, USA | 
  
           
   | 
   | 
   | Vuonnemite | 
  R050250 | 
  Na6Na2Nb2Na3Ti(Si2O7)2(PO4)2O2(OF) | 
  Marcus Origlieri  | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | Vuonnemite | 
  R080015 | 
  Na6Na2Nb2Na3Ti(Si2O7)2(PO4)2O2(OF) | 
  Michael Scott S101022 | 
  Kedykevrpahkh Mt., Lovozero Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Vuonnemite | 
  R070690 | 
  Na6Na2Nb2Na3Ti(Si2O7)2(PO4)2O2(OF) | 
  Michael Scott S104792 | 
  Yubileinaya (Yubileinoye; Jubilejnaja) pegmatite,  Karnasurt Mt, Lovozero Massif, Kola Peninsula,  Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Vuoriyarvite-K | 
  R070703 | 
  (K,Na,◻)12Nb8(Si4O12)4O8·12-16H2O | 
  Michael Scott S101588 | 
  Vein No. 46,  Kirovskii apatite mine (Kirovsky Mine; Kirov Mine),  Kukisvumchorr Mt,  Khibiny Massif,  Kola Peninsula,  Murmanskaja Oblast',  Northern Region,  Russia | 
  
           
   | 
   | 
   | Wadeite | 
  R060036 | 
  K2ZrSi3O9 | 
  University of Arizona Mineral Museum 8626 | 
  Walgidee, Western Australia, Austrailia | 
  
           
   | 
   | 
   | Wadeite | 
  R130537 | 
  K2ZrSi3O9 | 
  Donald M Doell and Brian Roulston  | 
  Potash Corporation of Saskatchewan mine, Penobsquis, Kings County, New Brunswick, Canada | 
  
           
   | 
   | 
   | Wadsleyite | 
  R090004 | 
  Mg2SiO4 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | Wagnerite | 
  R050519 | 
  Mg2(PO4)F | 
  University of Arizona Mineral Museum 4797 | 
  Kjorrestad, near Bamle, Norway | 
  
           
   | 
   | 
   | Wagnerite | 
  R060456 | 
  Mg2(PO4)F | 
  Michael Scott S100106 | 
  Kara-Su, Kirgizstan | 
  
           
   | 
   | 
   | Wagnerite | 
  R070559 | 
  Mg2(PO4)F | 
  Royal Ontario Museum M52762 | 
  Panasqueira mine, near Fundão, Portugal | 
  
           
   | 
   | 
   | Waimirite-(Y) | 
  R130714 | 
  YF3 | 
  Marcelo B Andrade  | 
  Pitinga mine, Amazon, Brazil | 
  
           
   | 
   | 
   | Wairakite | 
  R061075 | 
  Ca(Si4Al2)O12·2H2O | 
  Michael Scott S101417 | 
  Katashina Village, Gunma Prefecture, Japan | 
  
           
   | 
   | 
   | Wakabayashilite | 
  R060747 | 
  (As,Sb)6As4S14 | 
  Bob Jenkins  | 
  White Caps mine, Manhattan, Nye County, Nevada, USA | 
  
           
   | 
   | 
   | Wakabayashilite | 
  R150064 | 
  (As,Sb)6As4S14 | 
  Rock Currier  | 
  Jas Roux, La Chapelle En Valgaudemard, Hautes-Alpes, Provence-Alpes-Côte D'Azur, France | 
  
           
   | 
   | 
   | Wakefieldite-(Ce) | 
  R060176 | 
  CeVO4 | 
  Ty Balacko TB1 | 
  North Keremeous, British Columbia, Canada | 
  
           
   | 
   | 
   | Wakefieldite-(Ce) | 
  R060542 | 
  CeVO4 | 
  Michael Scott S100013 | 
  Yellow Lake, British Columbia, Canada | 
  
           
   | 
   | 
   | Walpurgite | 
  R050573 | 
  Bi4O4(UO2)(AsO4)2·2H2O | 
  University of Arizona Mineral Museum 2484 | 
  Joachimstal, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Walstromite | 
  R070634 | 
  BaCa2Si3O9 | 
  Michael Scott S100311 | 
  Esquire number 8 mine, Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | Walstromite | 
  R150079 | 
  BaCa2Si3O9 | 
  Gunnar Farber  | 
  Gun Claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Wangdaodeite | 
  R150142 | 
  FeTiO3 | 
  Xiande Xie and Xiangping Gu  | 
  Suizhou L6 chondrite, Dayanpo, 12.5 km southeast of the city of Suizhou, Hubei Province, China (35°18’N, 113°35’E) | 
  
           
   | 
   | 
   | Wangkuirenite | 
  R220047 | 
  Pb3Cl2(SeO3)2 | 
  Bill Pinch  | 
  Baccu Locci mine, Villaputen, Sardinia, Italy | 
  
           
   | 
   | 
   | Wardite | 
  R050643 | 
  NaAl3(PO4)2(OH)4·2H2O | 
  Rock Currier  | 
  Big Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Warikahnite | 
  R080105 | 
  Zn3(AsO4)2·2H2O | 
  William W. Pinch  | 
  O stope, 31st level, Tsumeb, Namibia | 
  
           
   | 
   | 
   | Warwickite | 
  R050674 | 
  (Mg,Ti,Fe,Cr,Al)2O(BO3) | 
  University of Arizona Mineral Museum 3053 | 
  Edenville, Orange County, New York, USA | 
  
           
   | 
   | 
   | Warwickite | 
  R120161 | 
  (Mg,Ti,Fe,Cr,Al)2O(BO3) | 
  Michael J. Bainbridge  | 
  South Baptiste Lake roadcut, Bancroft, Ontario, Canada | 
  
           
   | 
   | 
   | Wattersite | 
  R060626 | 
  Hg1+4Hg2+O2(CrO4) | 
  Michael Scott S100234 | 
  Clear Creek claim, San Benito County, California, USA | 
  
           
   | 
   | 
   | Wavellite | 
  R040176 | 
  Al3(PO4)2(OH)3·5H2O | 
  University of Arizona Mineral Museum 4858 | 
  Montgomery County, Arkansas, USA | 
  
           
   | 
   | 
   | Wavellite | 
  R050219 | 
  Al3(PO4)2(OH)3·5H2O | 
  Marcus Origlieri  | 
  Kapunda Quarry, South Australia, Australia | 
  
           
   | 
   | 
   | Waylandite | 
  R130361 | 
  BiAl3(PO4)2(OH)6 | 
  Rock Currier  | 
  Ngussa, Kivu, Zaire | 
  
           
   | 
   | 
   | Weddellite | 
  R050242 | 
  Ca(C2O4)·2H2O | 
  Marcus Origlieri  | 
  Biggs, Wasco County, Oregon, USA | 
  
           
   | 
   | 
   | Weddellite | 
  R110123 | 
  Ca(C2O4)·2H2O | 
  Gordie Downs  | 
  Tucson, Arizona, USA | 
  
           
   | 
   | 
   | Weeksite | 
  R050330 | 
  (K)2(UO2)2(Si5O13)·4H2O | 
  Lloyd Twaites  | 
  Anderson mine, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | Weloganite | 
  R050217 | 
  Na2Sr3Zr(CO3)6·3H2O | 
  Marcus Origlieri  | 
  Francon Quarry, Montréal, Québec, Canada | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R050398 | 
  Ca2Mg(AsO4)2·2H2O | 
  Marcus Origlieri  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R100174 | 
  Ca2Mg(AsO4)2·2H2O | 
  University of Arizona Mineral Museum 18613 | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R100175 | 
  Ca2Mg(AsO4)2·2H2O | 
  University of Arizona Mineral Museum 18607 | 
  Bou Azzer, Souss- Massa-Draa, Morocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180008 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 4 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180009 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 1 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180010 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 2 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180011 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 3 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180012 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 5 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180013 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 6 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wendwilsonite | 
  R180014 | 
  Ca2Mg(AsO4)2·2H2O | 
  Wendell Wilson 7 | 
  Bou Azzer, Morrocco | 
  
           
   | 
   | 
   | Wermlandite | 
  R100052 | 
  Mg7Al2(OH)18[Ca(H2O)6](SO4)2·6H2O | 
  William W Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Wesselsite | 
  R120019 | 
  SrCuSi4O10 | 
  William W. Pinch  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Westerveldite | 
  R060507 | 
  FeAs | 
  Michael Scott S100040 | 
  Kvanefjeld, Ilimaussaq, Greenland | 
  
           
   | 
   | 
   | Wheat starch | 
  D120009 | 
   | 
  David Blake  | 
  from Sigma | 
  
           
   | 
   | 
   | Wheatleyite | 
  R160084 | 
  Na2Cu(C2O4)2·2H2O | 
  Danielle Sotomayor and Keith Wentz  | 
  Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Whelanite | 
  R050323 | 
  Cu2Ca6[Si6O17(OH)](CO3)(OH)3(H2O)2 | 
  Marcus Origlieri  | 
  Christmas mine, Christmas, Gila County, Arizona, USA | 
  
           
   | 
   | 
   | Wherryite | 
  R110089 | 
  Pb7Cu2(SO4)4(SiO4)2(OH)2 | 
  Brent Thorne and Joe Ruiz  | 
  Mammoth-St Anthony mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Wherryite | 
  R141161 | 
  Pb7Cu2(SO4)4(SiO4)2(OH)2 | 
  Benjamin N. Schumer  | 
  Mammoth-St Anthony mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Whewellite | 
  R050240 | 
  Ca(C2O4)·H2O | 
  Marcus Origlieri  | 
  Huron River, Milan, Ohio, USA | 
  
           
   | 
   | 
   | Whewellite | 
  R050526 | 
  Ca(C2O4)·H2O | 
  University of Arizona Mineral Museum 3081 | 
  Dresden, Saxony, Germany | 
  
           
   | 
   | 
   | Whewellite | 
  R070655 | 
  Ca(C2O4)·H2O | 
  University of Arizona Mineral Museum 10529 | 
  Dos Cabezas Ridge, Arizona, USA | 
  
           
   | 
   | 
   | Whiteite-(CaFeMg) | 
  R060912 | 
  CaFe2+Mg2Al2(PO4)4(OH)2·8H2O | 
  Royal Ontario Museum M52408 | 
  Yukon Territory, Canada | 
  
           
   | 
   | 
   | Whiteite-(CaFeMg) | 
  R130055 | 
  CaFe2+Mg2Al2(PO4)4(OH)2·8H2O | 
  Thomas A. Loomis TL-22 | 
  Tip Top mine, Custer, South Dakota, USA | 
  
           
   | 
   | 
   | Whiteite-(CaMnMg) | 
  R140770 | 
  CaMn2+Mg2Al2(PO4)4(OH)2·8H2O | 
  Thomas A. Loomis  | 
  Tip Top mine, Fourmile, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | Whitlockite | 
  R070675 | 
  Ca9Mg(PO3OH)(PO4)6 | 
  Rock Currier  | 
  Palermo mine, North Groton, New Hampshire, USA | 
  
           
   | 
   | 
   | Whitlockite | 
  R080052 | 
  Ca9Mg(PO3OH)(PO4)6 | 
  Mineralogical Museum, Harvard University ISGN:HRV000XO6 95030 | 
  Palermo #1 Quarry, Groton, Grafton County, New Hampshire USA | 
  
           
   | 
   | 
   | Whitmoreite | 
  R110175 | 
  Fe2+Fe3+2(PO4)2(OH)2·4H2O | 
  Donald Doell  | 
  Palermo #1 mine, North Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Wickenburgite | 
  R060048 | 
  Pb3CaAl2Si10O27·4H2O | 
  University of Arizona Mineral Museum 16434 | 
  Rat Tail Claim, Wickenburg, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | Wickenburgite | 
  R060087 | 
  Pb3CaAl2Si10O27·4H2O | 
  University of Arizona Mineral Museum 9500 | 
  Potter Claim, Wickenburg, Arizona, USA | 
  
           
   | 
   | 
   | Wickmanite | 
  R100017 | 
  Mn2+Sn4+(OH)6 | 
  William Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Wicksite | 
  R070274 | 
  NaCa2Fe2+2(Fe3+,Mn2+,Fe2+)4(PO4)6·2H2O | 
  Royal Ontario Museum M52275 | 
  Big Fish River, Richardson Mountains, Dawson Mining District, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Wicksite | 
  R190008 | 
  NaCa2Fe2+2(Fe3+,Mn2+,Fe2+)4(PO4)6·2H2O | 
  Don Doell  | 
  Big Fish River, Dawson mining district, Yukon, Canada | 
  
           
   | 
   | 
   | Widenmannite | 
  R080029 | 
  Pb2(OH)2[(UO2)(CO3)2] | 
  William W. Pinch  | 
  Pribram, Bohemia, Czechoslovakia | 
  
           
   | 
   | 
   | Wightmanite | 
  R060843 | 
  Mg5O(BO3)(OH)5·2H2O | 
  Bob Jenkins  | 
  Crestmore, California, USA | 
  
           
   | 
   | 
   | Wilancookite | 
  R100091 | 
  (Ba5Li2◻)Ba6Be24P24O96·26H2O | 
  Luiz Menezes  | 
  Lavra Ponte do Piauí complex granitic pegmatite, Itinga, Jequitinhonha, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Wilhelmkleinite | 
  R070060 | 
  ZnFe3+2(AsO4)2(OH)2 | 
  William W. Pinch  | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Wilkinsonite | 
  R060922 | 
  Na4[Fe2+8Fe3+4]O4[Si12O36] | 
    | 
  Warrumbungle Volcanics, New South Wales, Australia | 
  
           
   | 
   | 
   | Willemite | 
  R060875 | 
  Zn2SiO4 | 
  Marcus Origlieri  | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Willemite | 
  R050652 | 
  Zn2SiO4 | 
  University of Arizona Mineral Museum 8071 | 
  Franklin Furnace, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Willemite | 
  R100109 | 
  Zn2SiO4 | 
  American Museum of Natural History 98993 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Willemseite | 
  R061112 | 
  Ni3Si4O10(OH)2 | 
  Michael Scott S104099 | 
  near Scotia Talc mine, Barberton Mountain, Transvaal, South Africa | 
  
           
   | 
   | 
   | Willhendersonite | 
  R060508 | 
  KCa(Si3Al3)O12·5H2O | 
  Michael Scott S100293 | 
  San Venzano Quarry, Terni, Umbria, central Italy | 
  
           
   | 
   | 
   | Wiluite | 
  X050177 | 
  Ca19(Al,Mg)13(B,◻,Al)5(SiO4)10(Si2O7)4(O,OH)10 | 
  G.R. Rossman 1429b | 
  Wilui River, Sakha Republic, Russian Federation | 
  
           
   | 
   | 
   | Wiluite | 
  R060513 | 
  Ca19(Al,Mg)13(B,◻,Al)5(SiO4)10(Si2O7)4(O,OH)10 | 
  Michael Scott S100136 | 
  Wilui River, Sakha Republic, Russian Federation | 
  
           
   | 
   | 
   | Winchite | 
  R061124 | 
  ◻(NaCa)(Mg4Al)Si8O22(OH)2 | 
  Michael Scott S104952 | 
  Iratuyama, Ehime Prefecture, Japan | 
  
           
   | 
   | 
   | Wiserite | 
  R130122 | 
  Mn2+14(B2O5)4(OH)8·(Si,Mg)(O,OH)4Cl | 
  Rock Currier  | 
  Kombat mine, Namibia | 
  
           
   | 
   | 
   | Witherite | 
  R040040 | 
  Ba(CO3) | 
  University of Arizona Mineral Museum 8505 | 
  Cave-in-Rock, Hardin County, Illinois, USA | 
  
           
   | 
   | 
   | Witherite | 
  R050148 | 
  Ba(CO3) | 
  Jim McGlasson  | 
  Settlingstones mine, Fourstones, Northumberland, England | 
  
           
   | 
   | 
   | Witherite | 
  R050267 | 
  Ba(CO3) | 
  Marcus Origlieri  | 
  Fallowfields mine, Alston Moor, England | 
  
           
   | 
   | 
   | Wittichenite | 
  R050327 | 
  Cu3BiS3 | 
  Marcus Origlieri  | 
  Grube Daniel, Wittichen, Schwarzwald, Germany | 
  
           
   | 
   | 
   | Wittichenite | 
  R100013 | 
  Cu3BiS3 | 
  William Pinch  | 
  Cattle Grid pit, Mt. Gunson mine, Pernatty Lagoon, South Australia | 
  
           
   | 
   | 
   | Wodginite | 
  R130047 | 
  Mn2+Sn4+Ta2O8 | 
  Royal Ontario Museum  | 
  Tanco mine (Bernic Lake mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada | 
  
           
   | 
   | 
   | Wöhlerite | 
  R050275 | 
  Na2Ca4Zr(Nb,Ti)(Si2O7)2(O,F)4 | 
  Marcus Origlieri  | 
   Langesundsfjord, Norway | 
  
           
   | 
   | 
   | Wöhlerite | 
  R060086 | 
  Na2Ca4Zr(Nb,Ti)(Si2O7)2(O,F)4 | 
  University of Arizona Mineral Museum 2918 | 
  Langesundfjord, Norway | 
  
           
   | 
   | 
   | Wolfeite | 
  R050614 | 
  Fe2+2(PO4)(OH) | 
  University of Arizona Mineral Museum 3012 | 
  Hagendorf, Bavaria | 
  
           
   | 
   | 
   | Wolfeite | 
  R060545 | 
  Fe2+2(PO4)(OH) | 
  Michael Scott S100274 | 
  Big Fish River, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Wolfeite | 
  R140864 | 
  Fe2+2(PO4)(OH) | 
  Rock Currier  | 
  Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany | 
  
           
   | 
   | 
   | Wollastonite | 
  R040131 | 
  CaSiO3 | 
  University of Arizona Mineral Museum 12446 | 
  In-Ne-Koh-Pah Gorge, Jacumba, San Diego County, California, USA | 
  
           
   | 
   | 
   | Wollastonite | 
  R040008 | 
  CaSiO3 | 
  University of Arizona Mineral Museum 4220 | 
  Lake Baikal, Siberia, Russia | 
  
           
   | 
   | 
   | Wollastonite | 
  R120016 | 
  CaSiO3 | 
  Donald Doell  | 
  Saint-Sauveur Graphite occurrence, Saint-Sauveur, Les Pays-d'en-Haut RCM, Laurentides, Québec, Canada | 
  
           
   | 
   | 
   | Wollastonite | 
  R120122 | 
  CaSiO3 | 
  Marcus Origlieri  | 
  Fuka mine, Bicchu-cho, Okayama Prefecture, Japan | 
  
           
   | 
   | 
   | Wölsendorfite | 
  R090051 | 
  Pb7(UO2)14O19(OH)4·12H2O | 
  William W. Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Woodhouseite | 
  R060520 | 
  CaAl3(SO4)(PO4)(OH)6 | 
  Michael Scott S100213 | 
  Champion mine, Mono County, California, USA | 
  
           
   | 
   | 
   | Woodwardite | 
  R060762 | 
  (Cu1-xAlx)(SO4)x/2(OH)2·nH2O (x < 0.5, n < 3x/2) | 
  Michael Scott S101245 | 
  Cornwall, England | 
  
           
   | 
   | 
   | Wooldridgeite | 
  R100005 | 
  Na2CaCu2+2(P2O7)2·10H2O | 
  William Pinch  | 
  Judkins Quarry, Nuneaton, Warwickshire, England | 
  
           
   | 
   | 
   | Wulfenite | 
  R050024 | 
  PbMoO4 | 
  Eugene Schlepp  | 
  Old Yuma mine, Tucson, Arizona, USA | 
  
           
   | 
   | 
   | Wulfenite | 
  R050149 | 
  PbMoO4 | 
  Jim McGlasson  | 
  Chapacase mine, Sierra Cerrillias District, Tocopilla, Chile | 
  
           
   | 
   | 
   | Wulfenite | 
  R050501 | 
  PbMoO4 | 
  California Institute of Technology W-21007 | 
  Los Lamentos, Chihuahua, Mexico | 
  
           
   | 
   | 
   | Wupatkiite | 
  R060515 | 
  CoAl2(SO4)4·22H2O | 
  Michael Scott S100326 | 
  Lorena Gold mine, Cloncurry, Queensland, Australia | 
  
           
   | 
   | 
   | Wurtzite | 
  R060181 | 
  ZnS | 
  Lloyd Twaites  | 
  Silver Islet mine, Thunder Bay, Ontario, Canada | 
  
           
   | 
   | 
   | Wurtzite | 
  R130069 | 
  ZnS | 
  William W. Pinch  | 
  Merelani Hills (Mererani), Lelatema Mountains, Arusha Region, Tanzania | 
  
           
   | 
   | 
   | Wuyanzhiite | 
  R180023 | 
  Cu2S | 
  Xiangping Gu  | 
  #5 orebody on the -65 m level in Bofang Copper mine, about 40 km south from Hengyang City, Hunan Province, China. | 
  
           
   | 
   | 
   | Wyartite II | 
  R090061 | 
  CaU5+(U6+O2)2O4(OH)·3H2O | 
  William W. Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Xanthoconite | 
  R070746 | 
  Ag3AsS3 | 
  Michael Scott S106258 | 
  Freiberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   | 
   | Xanthoconite | 
  R080013 | 
  Ag3AsS3 | 
  William W. Pinch  | 
  Imiter mine, Djebel Sarhro, 20 km. from Quarzazate, Anti Atlas Mountains, Morocco | 
  
           
   | 
   | 
   | Xanthoxenite | 
  R050234 | 
  Ca4Fe3+2(PO4)4(OH)2·3H2O | 
  Marcus Origlieri  | 
  Palermo mine, North Groton, Grafton County, New Hampshire, USA | 
  
           
   | 
   | 
   | Xenotime-(Y) | 
  R050178 | 
  Y(PO4) | 
  Marcus Origlieri  | 
  Novo Horizonte, Bahia, Brazil | 
  
           
   | 
   | 
   | Xenotime-(Y) | 
  R060428 | 
  Y(PO4) | 
  Herb Obodda 107 | 
  Zagi Mountain, near Hammedabad, Khaffor Dehri, North-West Frontier Province, Pakistan | 
  
           
   | 
   | 
   | Xenotime-(Y) | 
  R120080 | 
  Y(PO4) | 
  Rudy Bolona  | 
  Clora May mine, Chaffee County, Colorado, USA | 
  
           
   | 
   | 
   | Xocomecatlite | 
  R070738 | 
  Cu3(Te6+O4)(OH)4 | 
  Michael Scott S103461 | 
  Bambollita mine (Oriental mine), Moctezuma, Municipio de Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Xonotlite | 
  R120029 | 
  Ca6Si6O17(OH)2 | 
  Donald Doell  | 
  Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Xonotlite | 
  R180003 | 
  Ca6Si6O17(OH)2 | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Nchwaning III mine, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Yangite | 
  R090031 | 
  PbMnSi3O8·H2O | 
  William W. Pinch  | 
  Kombat, Namibia | 
  
           
   | 
   | 
   | Yanomamite | 
  R060537 | 
  In(AsO4)·2H2O | 
  Michael Scott S100011 | 
  Periquito mine, Monte Alegre de Goias, Goias, Brazil | 
  
           
   | 
   | 
   | Yarrowite | 
  R060536 | 
  Cu9S8 | 
  Michael Scott S100224 | 
  Yarrow Creek, southwestern Alberta, Canada | 
  
           
   | 
   | 
   | Yeatmanite | 
  R141001 | 
  Zn6Mn2+9Sb5+2O12(SiO4)4 | 
  Rock Currier  | 
  1500 foot level, Sterling mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Yedlinite | 
  R050338 | 
  Pb6Cr(Cl,OH)6(OH,O)8 | 
  University of Arizona Mineral Museum 11360 | 
  Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | Yingjiangite | 
  R070740 | 
  K2Ca(UO2)7(PO4)4(OH)6·6H2O | 
  Michael Scott S106144 | 
  Kamaka Bar, Frazier River, Kamloops Mining Division, British Columbia, Canada | 
  
           
   | 
   | 
   | Yoderite | 
  R050277 | 
  (MgAl3)(MgAl)Al2O2(SiO4)4(OH)2 | 
  Marcus Origlieri  | 
  Mautia Hill, Kongwa, Central Province, Tanzania | 
  
           
   | 
   | 
   | Yofortierite | 
  R080111 | 
  Mn2+5Si8O20(OH)2·7H2O | 
  William W. Pinch  | 
  Mont Saint-Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | Yoshimuraite | 
  R050266 | 
  Ba4Mn2+4Ti2(Si2O7)2(PO4)2O2(OH)2 | 
  Marcus Origlieri  | 
  Taguchi mine, Shidara, Kitashidara-Gun, Aichi Prefecture, Japan | 
  
           
   | 
   | 
   | Yttrium aluminum garnet | 
  X090003 | 
   | 
  Gemological Institute of America 15735 | 
  Synthetic | 
  
           
   | 
   | 
   | Yttrium aluminum garnet | 
  R110105 | 
   | 
  Gemological Institute of America 10-12-2010-10 | 
  Synthetic | 
  
           
   | 
   | 
   | Yttrium aluminum garnet | 
  R150067 | 
   | 
  Martin Zinn  | 
  Synthetic | 
  
           
   | 
   | 
   | Yttrotantalite-(Y) | 
  R060022 | 
  (Y,U,Fe2+)(Ta,Nb)(O,OH)4 | 
  American Museum of Natural History 67464 | 
  Swaziland | 
  
           
   | 
   | 
   | Yttrotantalite-(Y) | 
  R060828 | 
  (Y,U,Fe2+)(Ta,Nb)(O,OH)4 | 
  Michael Scott S101196 | 
  Skuleboda, Sweden | 
  
           
   | 
   | 
   | Yttrotantalite-(Y) | 
  R080046 | 
  (Y,U,Fe2+)(Ta,Nb)(O,OH)4 | 
  American Museum of Natural History  67464 | 
  Swaziland | 
  
           
   | 
   | 
   | Yttrotungstite-(Y) | 
  R050569 | 
  Y(W,Fe,Si,Al,Ti)2(O,OH,H2O)9 | 
  University of Arizona Mineral Museum 3086 | 
  Perak, Malaysia | 
  
           
   | 
   | 
   | Yuanfuliite | 
  R100067 | 
  Mg(Fe3+,Al)O(BO3) | 
  Bob Jenkins  | 
  La Ceila, near Jumilla, Murcia Province, Spain | 
  
           
   | 
   | 
   | Yugawaralite | 
  R050407 | 
  Ca(Si6Al2)O16·4H2O | 
  G.R. Rossman MK29 | 
  Malad quarry, Mumbai, Maharashtra, India | 
  
           
   | 
   | 
   | Yugawaralite | 
  R060568 | 
  Ca(Si6Al2)O16·4H2O | 
  Michael Scott S100229 | 
  Khandivali Quarry, near Bombay, India | 
  
           
   | 
   | 
   | Yukonite | 
  X100001 | 
  Ca2Fe3+3(AsO4)3(OH)4·4H2O | 
  Geological Survey of Canada  | 
  Tagish Lake, Yukon, Canada | 
  
           
   | 
   | 
   | Yuksporite | 
  R060818 | 
  K4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3 | 
  Bob Jenkins  | 
  Chibiny, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Yuzuxiangite | 
  R200008 | 
  Sr3Fe3+(Si2O6)2(OH)·3H2O | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Yvonite | 
  R100010 | 
  Cu(AsO3OH)·2H2O | 
  William Pinch  | 
  Salsigne Gold mine, Aude, France | 
  
           
   | 
   | 
   | Zabuyelite | 
  R100211 | 
  Li2(CO3) | 
  Michael Scott   | 
  Synthetic, purchased from Sigma-Aldrich | 
  
           
   | 
   | 
   | Zaccariniite | 
  R130009 | 
  RhNiAs | 
  Anna Vymazalova  | 
  Loma Peguera chromitite, Dominican Replubic | 
  
           
   | 
   | 
   | Zaccariniite | 
  R130010 | 
  RhNiAs | 
  Anna Vymazalova  | 
  Synthetic | 
  
           
   | 
   | 
   | Zálesíite | 
  R060228 | 
  CaCu6(AsO4)2(AsO3OH)(OH)6·3H2O | 
  Michael Scott S100145 | 
  Hilarion mine, near Kamareza, Laurium, Attica Penninsula, Greece | 
  
           
   | 
   | 
   | Zálesíite | 
  R070455 | 
  CaCu6(AsO4)2(AsO3OH)(OH)6·3H2O | 
  Michael Scott S103060 | 
  Zálesí, Javorník, Olomouc Region, Moravia (Mähren; Maehren), Czech Republic | 
  
           
   | 
   | 
   | Zanazziite | 
  R050578 | 
  Ca2Be4Mg5(PO4)6(OH)4·6H2O | 
  University of Arizona Mineral Museum 16166 | 
  Lavra da Ilha pegmatite, Taquaral, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Zanazziite | 
  R100220 | 
  Ca2Be4Mg5(PO4)6(OH)4·6H2O | 
  Luiz Menezes  | 
  Jenipapo district, Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Zaratite | 
  R050268 | 
  Ni3(CO3)(OH)4·4H2O | 
  Marcus Origlieri  | 
  Lord Brassy mine, Tasmania, Australia | 
  
           
   | 
   | 
   | Zavaritskite | 
  R070488 | 
  BiOF | 
  Michael Scott S103068 | 
  Moldava, Dubí, Krusné Hory Mts (Erzgebirge), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic | 
  
           
   | 
   | 
   | Zektzerite | 
  R070485 | 
  NaLiZrSi6O15 | 
  Michael Scott S103063 | 
  Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA | 
  
           
   | 
   | 
   | Zellerite | 
  R070454 | 
  Ca(UO2)(CO3)2·5H2O | 
  Michael Scott S103072 | 
  Frey No. 4 mine, Red Canyon, White Canyon District, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Zemannite | 
  R050273 | 
  Mg0.5ZnFe3+(Te4+O3)3·nH2O (3≤n≤4.5) | 
  Marcus Origlieri  | 
  Mina Bambollita, Moctezuma, Sonora, Mexico | 
  
           
   | 
   | 
   | Zeophyllite | 
  R060150 | 
  Ca13Si10O28(OH)2F8·6H2O | 
  University of Arizona Mineral Museum 2957 | 
  Radzein, near Teplitz, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Zhanghuifenite | 
  R141027 | 
  Na3Mn2+4Mg2Al(PO4)6 | 
  William W. Pinch  | 
  Santa Ana Pegmatite, Totoral pegmatitic field, Coronel Pringles Department, San Luis, Argentina | 
  
           
   | 
   | 
   | Zhanghuifenite | 
  R160030 | 
  Na3Mn2+4Mg2Al(PO4)6 | 
  Jaroslav Hyršl  | 
  Santa Ana pegmatite, Totoral pegmatitic field, Coronel Pringles Department, San Luis, Argentina | 
  
           
   | 
   | 
   | Zharchikhite | 
  R061136 | 
  Al(OH)2F | 
  Michael Scott S105120 | 
  Zharchikha deposit, Buryatia, Russia | 
  
           
   | 
   | 
   | Zhenruite | 
  R220010 | 
  (MoO3)2·H2O | 
  Mike Scott S102692 | 
  Freedom No. 2 mine, Marysvale District (Marysvale Uranium area), Piute County, Utah, USA | 
  
           
   | 
   | 
   | Ziesite | 
  R070482 | 
  Cu2V5+2O7 | 
  Michael Scott S103064 | 
  Izalco Volcano, Sonsonate Department, El Salvador | 
  
           
   | 
   | 
   | Zigrasite | 
  R120143 | 
  MgZr(PO4)2·4H2O | 
  James Zigras  | 
  Dunton quarry, Newry, Oxford County, Maine, USA | 
  
           
   | 
   | 
   | Zinc | 
  R070497 | 
  Zn | 
  James Shigley  | 
  Round Mountain area, Shasta County, California, USA | 
  
           
   | 
   | 
   | Zincite | 
  R050419 | 
  ZnO | 
  Marcus Origlieri  | 
  Sterling Hill, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Zincite | 
  R050492 | 
  ZnO | 
  California Institute of Technology W-21076 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | Zincite | 
  R060027 | 
  ZnO | 
  Jacque Reynard, Greg Schmidt  | 
  synthetic | 
  
           
   | 
   | 
   | Zincocopiapite | 
  R060779 | 
  ZnFe3+4(SO4)6(OH)2·20H2O | 
  Michael Scott S101288 | 
  Les Valettes, Wallis, Switzerland | 
  
           
   | 
   | 
   | Zincolibethenite | 
  R060763 | 
  CuZn(PO4)(OH) | 
  Michael Scott S101364 | 
  Kabwe mine, Kabwe, Zambia | 
  
           
   | 
   | 
   | Zincolibethenite | 
  R150008 | 
  CuZn(PO4)(OH) | 
  Marcus Origlieri  | 
  Skorpion mine, Rosh Pinah, Namibia | 
  
           
   | 
   | 
   | Zincolivenite | 
  R050583 | 
  CuZn(AsO4)(OH) | 
  University of Arizona Mineral Museum 14754 | 
  Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia | 
  
           
   | 
   | 
   | Zincroselite | 
  R100192 | 
  Ca2Zn(AsO4)2·2H2O | 
  William W Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Zinkenite | 
  R060186 | 
  Pb9Sb22S42 | 
  Lloyd Twaites LT1257 | 
  Llallagua, Potosi Department, Bolivia | 
  
           
   | 
   | 
   | Zinkenite | 
  R070577 | 
  Pb9Sb22S42 | 
  James Shigley  | 
  Jetty mine, near Anaconda, Deer Lodge County, Montana, USA | 
  
           
   | 
   | 
   | Zinnwaldite | 
  R040138 | 
  K(Al,Fe,Li)3(Si,Al)4O10(OH)F | 
  University of Arizona Mineral Museum 15868 | 
  Tørdal, Telemark, Norway | 
  
           
   | 
   | 
   | Zircon | 
  R050034 | 
  Zr(SiO4) | 
  University of Arizona Mineral Museum 13491 | 
  Oaxaca, Mexico | 
  
           
   | 
   | 
   | Zircon | 
  R050203 | 
  Zr(SiO4) | 
  Eric Van Valkenburg  | 
  Eastern Thailand | 
  
           
   | 
   | 
   | Zircon | 
  X050179 | 
  Zr(SiO4) | 
  G.R. Rossman 341 | 
  Chantaburi, Thailand | 
  
           
   | 
   | 
   | Zircon | 
  X050180 | 
  Zr(SiO4) | 
  Caltech 1218 | 
  Southeast Asia | 
  
           
   | 
   | 
   | Zircon | 
  X050181 | 
  Zr(SiO4) | 
  Caltech 1465 | 
  Blantyre, Malawi | 
  
           
   | 
   | 
   | Zircon | 
  X050182 | 
  Zr(SiO4) | 
  Caltech 1467 | 
  Henderson, North Carolina, USA | 
  
           
   | 
   | 
   | Zircon | 
  X050183 | 
  Zr(SiO4) | 
  Caltech  | 
  Synthetic | 
  
           
   | 
   | 
   | Zircon | 
  R050286 | 
  Zr(SiO4) | 
  Marcus Origlieri  | 
  Renfrew County, Ontario, Canada | 
  
           
   | 
   | 
   | Zircon | 
  R050488 | 
  Zr(SiO4) | 
  California Institute of Technology W-21066 | 
  Sigulani Village, Tambani Area, Blantyre District, Nyassaland | 
  
           
   | 
   | 
   | Zircon | 
  R100128 | 
  Zr(SiO4) | 
  William W. Pinch  | 
  Cambodia | 
  
           
   | 
   | 
   | Zircon | 
  R100144 | 
  Zr(SiO4) | 
  William W. Pinch  | 
  Sri Lanka | 
  
           
   | 
   | 
   | Zircon | 
  R150080 | 
  Zr(SiO4) | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Zircon | 
  R150081 | 
  Zr(SiO4) | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Zircon | 
  R150082 | 
  Zr(SiO4) | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Zircon | 
  R150083 | 
  Zr(SiO4) | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Zircon | 
  R150084 | 
  Zr(SiO4) | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Zircon | 
  R150085 | 
  Zr(SiO4) | 
  Michael Scott  | 
  unknown | 
  
           
   | 
   | 
   | Zirkelite | 
  R060540 | 
  (Ti,Ca,Zr)O2-x | 
  Michael Scott S100275 | 
  Palabora Open Pit, Phalaborwa, Transvaal, Republic of South Africa | 
  
           
   | 
   | 
   | Zirkelite | 
  R080083 | 
  (Ti,Ca,Zr)O2-x | 
  Luiz Menezes  | 
  Jacupiranga mine, Cajati, São Paulo, Brazil | 
  
           
   | 
   | 
   | Zirsilite-(Ce) | 
  R200001 | 
  (Na,◻)12(Ce,Na)3Ca6Mn3Zr3NbSi25O73(OH)3(CO3)·H2O | 
  Don Doell  | 
  Sagasen Quarry, Morje, Porsgreunn, Telemark, Norway | 
  
           
   | 
   | 
   | Znucalite | 
  R070483 | 
  CaZn11(UO2)(CO3)3(OH)20·4H2O | 
  Michael Scott S101720 | 
  Lill Mine, Black pits deposit, Březové Hory (Birkenberg), Příbram, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic | 
  
           
   | 
   | 
   | Zoisite | 
  R050041 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 4474 | 
  Franklin County, Conway, Massachussetts, USA | 
  
           
   | 
   | 
   | Zoisite | 
  R050038 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  University of Arizona Mineral Museum 4475 | 
  Elf Shooting Creek, Clay County, North Carolina, USA | 
  
           
   | 
   | 
   | Zoisite | 
  X050184 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  RD Shannon 62047- 76 | 
  Merilani Hills, Arusha, Tanzania | 
  
           
   | 
   | 
   | Zoisite | 
  R060567 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  Michael Scott S100192 | 
  Umba Valley, Tanzania | 
  
           
   | 
   | 
   | Zoisite | 
  X060001 | 
  Ca2Al3[Si2O7][SiO4]O(OH) | 
  Michael Scott 11026 | 
  unknown | 
  
           
   | 
   | 
   | Zorite | 
  R060953 | 
  Na6Ti5Si12O34(O,OH)5·11H2O | 
  Bob Jenkins  | 
  Lovozero Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Zunyite | 
  X050185 | 
  Al13Si5O20(OH,F)18Cl | 
  G.R. Rossman 1586 | 
  Electric Meat Ball deposit, Quartzsite, La Paz County, Arizona, USA | 
  
           
   | 
   | 
   | Zunyite | 
  R050263 | 
  Al13Si5O20(OH,F)18Cl | 
  Marcus Origlieri  | 
  Ruby Mountain, Tintic District, Utah, USA | 
  
           
   | 
   | 
   | Zunyite | 
  R050553 | 
  Al13Si5O20(OH,F)18Cl | 
  Dave Bunk Minerals  | 
  near Quartzsite, Yuma/La Paz Counties, Arizona, USA | 
  
           
   | 
   | 
   | Zussmanite | 
  R050448 | 
  K(Fe,Mg,Mn)13(Si,Al)18O42(OH)14 | 
  Marcus Origlieri  | 
  Longvale Quarry, Mendocino County, California, USA | 
  
           
   | 
   | 
   | Zwieselite | 
  R050279 | 
  Fe2+2(PO4)F | 
  Marcus Origlieri  | 
  Cornelia mine, Hagendorf, Bavaria, Germany | 
  
           
   | 
   | 
   | Zýkaite | 
  R070477 | 
  Fe3+4(AsO4)3(SO4)(OH)·15H2O | 
  Michael Scott S101732 | 
  Christbescherung mine, Großvoigtsberg, Freiberg District, Erzgebirge, Saxony, Germany | 
  
           
   | 
   
   
   
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         4216 Records Found 
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