| 
         Displaying: 1 - 1805
       | 
      
                | 
      
         1805 Records Found 
       | 
    
    
    | 
   | 
   
   
    | 
     | 
   NAMES | 
   RRUFF ID | 
   IDEAL CHEMISTRY | 
   SOURCE | 
   LOCALITY | 
   OPTIONS | 
   | 
   | Abelsonite | 
  R070007 | 
  NiC31H32N4 | 
  Geophysical Laboratory, Carnegie Institution of Washington  | 
  Green River Formation, Utah, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Adamsite-(Y) | 
  R070360 | 
  NaY(CO3)2·6H2O | 
  Michael Scott S103012 | 
  Mont Saint-Hilaire, Rouville County, Quebec, Canada | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Ahrensite | 
  R230013 | 
  SiFe2O4 | 
  Chi Ma  | 
  Tissint meteorite, likely from Mars | 
  
           
   | 
   | 
   | Alamosite | 
  R060067 | 
  PbSiO3 | 
  University of Arizona Mineral Museum 16087 | 
  Alamos, Sonora, Mexico | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Alloclasite | 
  R110002 | 
  CoAsS | 
  Marcus Origlieri  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Alumoklyuchevskite | 
  R070041 | 
  K3Cu2+3AlO2(SO4)4 | 
  Michael Scott S105109 | 
  main fracture, N breakthrough, Tolbachik Volcano, Kamchatka Peninsula, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Ammoniojarosite | 
  R060408 | 
  (NH4)Fe3+3(SO4)2(OH)6 | 
  American Museum of Natural History 31246 | 
  Wamsutter, Sweetwater County, Wyoming, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Anorthoroselite | 
  R150065 | 
  Ca2Co(AsO4)2·2H2O | 
  Bob Jenkins  | 
  Bou Azzer, Morocco | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Aphthitalite | 
  R050651 | 
  K3Na(SO4)2 | 
  University of Arizona Mineral Museum 13723 | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Argesite | 
  R130008 | 
  (NH4)7Bi3Cl16 | 
  Francesco Demartin  | 
  La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy | 
  
           
   | 
   | 
   | Arisite-(La) | 
  R120051 | 
  NaLa2(CO3)2[F2x(CO3)1-x]F | 
  William W. Pinch  | 
  Aris quarry, near Windhoek, Namibia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Atorvastatin | 
  D120015 | 
   | 
  David Blake  | 
  Synthetic; pill is from Vietnam | 
  
           
   | 
   | 
   | Atorvastatin | 
  D120016 | 
   | 
  David Blake  | 
  Synthetic; pill is from Vietnam | 
  
           
   | 
   | 
   | Aurostibite | 
  R060923 | 
  AuSb2 | 
  Michael Scott S100862 | 
  Krásná Hora, Czech Republic | 
  
           
   | 
   | 
   | Austinite | 
  R060703 | 
  CaZn(AsO4)(OH) | 
  Bob Jenkins  | 
  Gold Hill mine, Tooele County, Utah, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Bakhchisaraitsevite | 
  R060607 | 
  Na2Mg5(PO4)4·7H2O | 
  Michael Scott S100971 | 
  Kovdor Massif,  Kola Peninsula,  Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Bannisterite | 
  R060817 | 
  (Ca,K,Na)(Mn2+,Fe2+)10(Si,Al)16O38(OH)8·nH2O | 
  Bob Jenkins  | 
  Broken Hill, New South Wales, Australia | 
  
           
   | 
   | 
   | Barbosalite | 
  R070358 | 
  Fe2+Fe3+2(PO4)2(OH)2 | 
  Michael Scott S104945 | 
  Bull Moose mine, Custer, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Barnesite | 
  R060883 | 
  Na2V5+6O16·3H2O | 
  Bob Jenkins  | 
  Cactus Rat mine, Grand County, Utah, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Bavsiite | 
  R150042 | 
  Ba2V2O2[Si4O12] | 
  Gunnar Farber  | 
  Gun Claim, Yukon Territory, Canada | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Benstonite | 
  R050484 | 
  Ba6Ca6Mg(CO3)13 | 
  California Institute of Technology W-40011 | 
  Minerva #1 mine, Cave-in-Rock, Hardin County, Illinois, USA | 
  
           
   | 
   | 
   | Bergslagite | 
  R060243 | 
  CaBe(AsO4)(OH) | 
  Michael Scott S100249 | 
  Langban mine dump, Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Bertossaite | 
  R060666 | 
  Li2CaAl4(PO4)4(OH)4 | 
  Michael Scott S101293 | 
  Buranga, Rwanda | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Beusite | 
  R160031 | 
  Mn2+Mn2+2(PO4)2 | 
  Jaroslav Hyršl  | 
  Santa Ana Pegmatite, Argentina | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Boralsilite | 
  R140759 | 
  Al16B6O30(Si2O7) | 
  Edward S. Grew 121102A | 
  Larsemann Hills, Prydz Bay, Ingrid Christensen Coast, Princess Elizabeth Land, Eastern Antarctica, Antarctica | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Boromuscovite | 
  R070107 | 
  KAl2(Si3B)O10(OH)2 | 
  Jeffrey E. Patterson 3,4,5 | 
  Little 3 mine, Ramona, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Brannerite | 
  R060613 | 
  UTi2O6 | 
  Michael Scott S100886 | 
  Crocker's Well, South Australia, Australia | 
  
           
   | 
   | 
   | Brannerite | 
  R080091 | 
  UTi2O6 | 
  Michael Scott S100886 | 
  Crocker's Well, South Australia, Australia | 
  
           
   | 
   | 
   | Brassite | 
  R060042 | 
  Mg(AsO3OH)·4H2O | 
  University of Arizona Mineral Museum 16150 | 
  Bohemia Region, Svornost mine, Jachymov, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Bridgesite-(Ce) | 
  R230003 | 
  CaCe2Cu6(SO4)4(OH)12·8H2O | 
  Neil Hubbard  | 
  Tynebottom Mine, Cumbria, United Kingdom | 
  
           
   | 
   | 
   | Britholite-(Ce) | 
  R130281 | 
  (Ce,Ca)5(SiO4)3(OH) | 
  Rock Currier  | 
  Oka complex, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada | 
  
           
   | 
   | 
   | Brushite | 
  R070554 | 
  Ca(PO3OH)·2H2O | 
  Henry J. Sun  | 
  Biogenic | 
  
           
   | 
   | 
   | Bukovskýite | 
  R050630 | 
  Fe3+2(AsO4)(SO4)(OH)·7H2O | 
  University of Arizona Mineral Museum 10053 | 
  Kutna Hora, Bohemia, Czechoslovakia | 
  
           
   | 
   | 
   | Bunsenite | 
  R080121 | 
  NiO | 
  William W. Pinch R-5794-1 | 
  Johanngeorgenstadt, Saxony, Germany | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Bystrite | 
  R060642 | 
  Na7Ca(Al6Si6)O24(S5)2-Cl1- | 
  Michael Scott S100813 | 
  Malaya Bystvaya, Lapis Deposit, Baikal, Russia | 
  
           
   | 
   | 
   | Cafarsite | 
  R080118 | 
  (Ca,Na,◻)19Ti8Fe3+4Fe2+4(AsO3)28F | 
  Renato and Adriana Pagano  | 
  Monte Cervandone, Val Devero, Piedmont, Italy | 
  
           
   | 
   | 
   | Cairncrossite | 
  R150126 | 
  Sr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-x | 
  Arnold Gucsik  | 
  Block 17, Wessels mine, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Camaronesite | 
  R150145 | 
  Fe3+2(PO3OH)2(SO4)(H2O)4·1-2H2O | 
  Robert Jenkins  | 
  Camarones Valley, Arica Province, Chile | 
  
           
   | 
   | 
   | Canosioite | 
  R220035 | 
  Ba2Fe3+(AsO4)2(OH) | 
  Fernando Cámara  | 
  Valletta mine, Maira Valley, Piedmont, Italy | 
  
           
   | 
   | 
   | Caresite | 
  R120028 | 
  Fe2+4Al2(OH)12(CO3)·3H2O | 
  Donald Doell  | 
  Mont Saint-Hilaire, Rouville County, Québec, 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 | 
  
           
   | 
   | 
   | Caryinite | 
  R060663 | 
  NaCaCaMn2(AsO4)3 | 
  Michael Scott S101279 | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Chistyakovaite | 
  R070024 | 
  Al(UO2)2(AsO4)2F·6.5H2O | 
  Michael Scott S105087 | 
  Bota-Burum U deposit, Kazakhstan | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Chloroquine diphosphate | 
  D120013 | 
   | 
  David Blake  | 
  Synthetic from Sigma | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Clinobisvanite | 
  R070401 | 
  Bi(VO4) | 
  Michael Scott S104748 | 
  Linka mine (Garnetite mine), Spencer Hot Springs District, Lander County, Nevada, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Clinophosinaite | 
  R070202 | 
  Na3Ca(SiO3)(PO4) | 
  Michael Scott S100441 | 
  Tsentrainly mine, Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Cobaltaustinite | 
  R050536 | 
  CaCo(AsO4)(OH) | 
  University of Arizona Mineral Museum 16265 | 
  Dome Rock, Mingary, South Australia, Australia | 
  
           
   | 
   | 
   | Coesite | 
  X050094 | 
  SiO2 | 
  G.R. Rossman 1603 | 
  Kimberly, South Africa | 
  
           
   | 
   | 
   | Coesite | 
  R070565 | 
  SiO2 | 
  Charles Prewitt Run #4 | 
  Synthetic, P = 45 kbar, T = 650 C | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Colusite | 
  R070568 | 
  Cu13VAs3S16 | 
  James Shigley  | 
  East Colusa mine, Butte, Silver Bow County, Montana, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Cowlesite | 
  R060627 | 
  Ca(Al2Si3)O10·5-6H2O | 
  Michael Scott S100860 | 
  Goble, Colombia County, Oregon, 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Dadsonite | 
  R060246 | 
  Pb23Sb25S60Cl | 
  William W. Pinch  | 
  St. Pons, Barconlette, Haute Alpes, France | 
  
           
   | 
   | 
   | Danielsite | 
  R070419 | 
  (Cu,Ag)14HgS8 | 
  Michael Scott S102001 | 
  Coppin Pool, Western Australia, Australia | 
  
           
   | 
   | 
   | Davisite | 
  R130013 | 
  CaScAlSiO6 | 
  Chi Ma  | 
  Allende meteorite, Pueblito de Allende, Chihuahua, Mexico | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Delafossite | 
  R050403 | 
  Cu1+Fe3+O2 | 
  Marcus Origlieri  | 
  Cole Shaft, Bisbee, Cochise County, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Diadochite | 
  R120021 | 
  Fe3+2(PO4)(SO4)(OH)·6H2O | 
  Dr. Jürgen Wachsmuth  | 
  Vysočany, Prague, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Dickthomssenite | 
  R070165 | 
  MgV2O6·7H2O | 
  Michael Scott S100559 | 
  Firefly-Pigmay mine, La Sal Quadrangle, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Djerfisherite | 
  R070390 | 
  K6(Fe,Cu,Ni)25S26Cl | 
  Michael Scott S103893 | 
  Noril'sk, Putoran Mts, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Downsite | 
  R220048 | 
  K2(MoO3)3(SO4)·4H2O | 
  Joe Marty  | 
  Freedom No. 2 mine, Marysvale District, Piute County, Utah, USA | 
  
           
   | 
   | 
   | Dresserite | 
  R060304 | 
  Ba2Al4(CO3)4(OH)8·3H2O | 
  Michael Scott S100072 | 
  Francon Quarry, Montreal,  Quebec, Canada | 
  
           
   | 
   | 
   | Dufrénoysite | 
  R070579 | 
  Pb2As2S5 | 
  James Shigley  | 
  Lengenbach Quarry, Imfeld, Binnental, Valais, Switzerland | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Dyscrasite | 
  R061043 | 
  Ag3+xSb1-x (x ≈ 0.2) | 
  Michael Scott S101314 | 
  Uranium mine no. 21, Pribram, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Edwindavisite | 
  R230005 | 
  Cu(C2O4)(NH3) | 
  Joe Marty JM-16394 | 
  125' Level, Rowley mine, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Elpasolite | 
  R061029 | 
  K2NaAlF6 | 
  Michael Scott S101431 | 
  Le Cetine mine, Rosia, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Ernstite | 
  R141205 | 
  (Mn2+,Fe3+)Al(PO4)(OH,O)2 | 
  Smithsonian 145620 | 
   | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Evansite | 
  R061030 | 
  Al3(PO4)(OH)6·8H2O | 
  Michael Scott S101244 | 
  Creu Olorde, Barcelona, Spain | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Fergusonite-(Ce) | 
  R110050 | 
  CeNbO4·0.3H2O | 
  Donald M Doell  | 
  Mount Malosa, Zomba District, Malawi | 
  
           
   | 
   | 
   | Ferri-kaersutite | 
  R150047 | 
  NaCa2(Mg3Fe3+Ti)(Si6Al2)O22O2 | 
  Donald Doell  | 
  Rothenberg quarry, Mendig, Eifel, Germany | 
  
           
   | 
   | 
   | 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-edenite | 
  R060044 | 
  NaCa2Fe2+5(Si7Al)O22(OH)2 | 
  University of Arizona Mineral Museum 13355 | 
  Barkevik, Norway | 
  
           
   | 
   | 
   | Ferro-holmquistite | 
  R070005 | 
  ◻Li2(Fe2+3Al2)Si8O22(OH)2 | 
  Michael Scott S101201 | 
  Mount Marrion, South Australia, Australia | 
  
           
   | 
   | 
   | Ferro-pargasite | 
  R090015 | 
  NaCa2(Fe2+4Al)(Si6Al2)O22(OH)2 | 
  Herb Obodda  | 
  Basha Valley, Skardu District, Baltistan, Northern Areas, Pakistan | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Ferroericssonite | 
  R070406 | 
  BaFe2+2Fe3+(Si2O7)O(OH) | 
  Michael Scott S104468 | 
  Big Creek, Fresno County, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Fetiasite | 
  R100014 | 
  (Fe2+,Fe3+,Ti4+)3O2As3+2O5 | 
  William Pinch  | 
  Gorb, Binnental, Valais, Switzerland | 
  
           
   | 
   | 
   | Fibroferrite | 
  R061076 | 
  Fe3+(SO4)(OH)·5H2O | 
  Michael Scott S101327 | 
  Cyprus | 
  
           
   | 
   | 
   | Fleischerite | 
  R120043 | 
  Pb3Ge(SO4)2(OH)6·3H2O | 
  William W. Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Fluocerite-(Ce) | 
  R110058 | 
  CeF3 | 
  Rudy Bolona and Don Doell  | 
  Little Patsy pegmatite, South Platte Pegmatite District, Jefferson County, Colorado, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Franciscanite | 
  R060056 | 
  Mn2+6(V5+◻)(SiO4)2O3(OH)3 | 
  Marcus Origlieri  | 
  Pennsylvania mine, Santa Clara County, California, 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Galenobismutite | 
  R110057 | 
  PbBi2S4 | 
  William W Pinch  | 
  Vena Cobalt mines, Bergslagen, Sweden | 
  
           
   | 
   | 
   | Galuskinite | 
  R130076 | 
  Ca7(SiO4)3(CO3) | 
  Thomas Ambruster  | 
  Birkhin gabbro massif, Eastern Siberia, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Georgbarsanovite | 
  R070101 | 
  Na12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2·H2O | 
  Michael Scott S105094 | 
  Petrelius Mountain, Khibiny Massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Georgerobinsonite | 
  R110148 | 
  Pb4(CrO4)2(OH)2FCl | 
  The University of Arizona Mineral Museum 5194 and 10550 | 
  Mammoth mine, Tiger, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Gibbsite | 
  R190038 | 
  Al(OH)3 | 
  Jim McGlasson  | 
  Mokrá, Žlutice, Karlovy Vary District, Karlovy Vary Region, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Glushinskite | 
  R060318 | 
  Mg(C2O4)·2H2O | 
  Michael Scott S100313 | 
  Route 238, 25 miles west of Maricopa, Maricopa County, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Graeserite | 
  R110054 | 
  Fe3+4Ti3As3+O13(OH) | 
  Bob Jenkins  | 
  Binntal, Wallis, Switzerland | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Grimselite | 
  R141028 | 
  K3Na(UO2)(CO3)3·H2O | 
  William W. Pinch  | 
  Rovnost Mine, Jáchymov, Krušné Hory Mts, Karlovy Vary, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Gysinite-(Nd) | 
  R100062 | 
  PbNd(CO3)2(OH)·H2O | 
  William W Pinch  | 
  Kasompi, 70 km west of Kambove, Katanga, Congo | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Hanksite | 
  R050291 | 
  KNa22(SO4)9(CO3)2Cl | 
  Marcus Origlieri  | 
  Searles Lake, Trona, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Hardystonite | 
  R040026 | 
  Ca2ZnSi2O7 | 
  University of Arizona Mineral Museum 9385 | 
  Franklin, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Haynesite | 
  R060599 | 
  (UO2)3(Se4+O3)2(OH)2·5H2O | 
  Michael Scott S100801 | 
  Repete mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Hectorfloresite | 
  R080117 | 
  Na9(IO3)(SO4)4 | 
  Bob Jenkins  | 
  Pampa Rica, Antofagasta Province, Chile | 
  
           
   | 
   | 
   | Heisenbergite | 
  R140422 | 
  (UO2)(OH)2·H2O | 
  Thomas Theye  | 
  Menzenschwand, Southern Black Forest, Baden Württemberg, Germany | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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-Sr | 
  R070272 | 
  (Sr,Ca,Na)5(Si27Al9)O72·24H2O | 
  Michael Scott S102090 | 
  Campegli mine, Campegli, Castiglione Chiavarese, Genova Province, Liguria, Italy | 
  
           
   | 
   | 
   | Heyrovskýite | 
  R070010 | 
  Pb6Bi2S9 | 
  Michael Scott S100398 | 
  Hoerky, Rakovnika, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Hodgkinsonite | 
  R140280 | 
  Zn2Mn2+(SiO4)(OH)2 | 
  Marcus Origlieri S104179 | 
  Parker Shaft, Franklin mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Holtstamite | 
  R170001 | 
  Ca3Al2(SiO4)2(OH)4 | 
  Paul Botha  | 
  Wessels mine, Kalahari manganese field, South Africa | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Hsianghualite | 
  R060722 | 
  Li2Ca3Be3(SiO4)3F2 | 
  Bob Jenkins and George Guanghua Liu  | 
  Xianghualing mine near Zenzhou, Hunan Province, China | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Hutchinsonite | 
  R060789 | 
  TlPbAs5S9 | 
  Michael Scott S101056 | 
  Peru | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Hydrotungstite | 
  R120058 | 
  WO2(OH)2·H2O | 
  Bob Jenkins  | 
  Mundo Nuevo, La Libertad, Peru | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Hydroxylbastnäsite-(Ce) | 
  R060283 | 
  Ce(CO3)(OH) | 
  Herb Obodda 084 | 
  Trimouns, Luzenac, France | 
  
           
   | 
   | 
   | Hydroxylellestadite | 
  R060769 | 
  Ca5(SiO4)1.5(SO4)1.5OH | 
  Michael Scott S101069 | 
  Crestmore, Riverside County, California, USA | 
  
           
   | 
   | 
   | Hydroxymcglassonite-(K) | 
  R200004 | 
  KSr4Si8O20(OH)·8H2O | 
  Jaco and Tania Janse van Nieuwenhuizen  | 
  Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa | 
  
           
   | 
   | 
   | Idrialite | 
  R060466 | 
  C22H14 | 
  Michael Scott S100175 | 
  Skaggs Springs, Sonoma County, California, 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 | 
  
           
   | 
   | 
   | Ilsemannite | 
  R070513 | 
  Mo3O8·nH2O (?) | 
  Michael Scott S102885 | 
  Osamu Utsumi Mine, Poços de Caldas, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Imayoshiite | 
  R210019 | 
  Ca3Al(CO3)[B(OH)4](OH)6·12H2O | 
  Hercule Shen  | 
  Shijiangshan Pb-Zn mine, Keshiketeng Co., Chifeng City, Inner Mongolia, China | 
  
           
   | 
   | 
   | Inderite | 
  R050195 | 
  MgB3O3(OH)5·5H2O | 
  Dave Bunk Minerals  | 
  Boron, Kern County, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Jensenite | 
  R080008 | 
  Cu2+3Te6+O6·2H2O | 
  William W. Pinch  | 
  Montezuma mine, Sonora, Mexico | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Joesmithite | 
  R120157 | 
  Pb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2 | 
  Rock Currier  | 
  Ramsorten drift, Langban, Sweden | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Johninnesite | 
  R060249 | 
  Na2Mn2+9Mg7(AsO4)2(Si6O17)2(OH)8 | 
  William W. Pinch  | 
  Kombat mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Kainosite-(Y) | 
  R070759 | 
  Ca2Y2(SiO3)4(CO3)·H2O | 
  Michael Scott S104160 | 
  Bicroft mine, Cardiff Township, Haliburton Co., Ontario, Canada | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Kazanskyite | 
  R130020 | 
  Ba◻TiNbNa3Ti(Si2O7)2O2(OH)2(H2O)2 | 
  Fernando Camara  | 
  Kirovskii mine, Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Kermesite | 
  R060742 | 
  Sb2OS2 | 
  Michael Scott S101199 | 
  Pezinok, Czechoslovakia | 
  
           
   | 
   | 
   | Kësterite | 
  R120098 | 
  Cu2ZnSnS4 | 
  Marcus Origlieri  | 
  Xuebaoding, Sichuan Province, China | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Kingsmountite | 
  R220015 | 
  Ca3MnFe2+Al4(PO4)6(OH)4·12H2O | 
  Herwig Pelckmans  | 
  Silbergrube, Waidhaus, Bavaria, Germany | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Kristiansenite | 
  R090022 | 
  Ca4Sc2Sn2(Si2O7)2(Si2O6OH)2 | 
  William W. Pinch  | 
  Heftetjern, Tørdal, Telemark, Norway | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Kuksite | 
  R110039 | 
  Pb3Zn3TeO6(PO4)2 | 
  Brent Thorne  | 
  Blue Bell claims, Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Larisaite | 
  R060879 | 
  Na(H3O)(UO2)3(Se4+O3)2O2·4H2O | 
  Michael Scott S100961 | 
  Repete mine, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Lasalite | 
  R070476 | 
  Na2Mg2V10O28·20H2O | 
  Dakota Matrix Minerals  | 
  Vanadium Queen mine, Paradox Valley, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Lausenite | 
  X070004 | 
  Fe3+2(SO4)3·5H2O | 
  University of Arizona Mineral Museum 53 | 
  United Verde Mine, Gerome, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Leesite | 
  R220018 | 
  K(H2O)2[(UO2)4O2(OH)5]·3H2O | 
  Jim McGlasson  | 
  Jomac mine, White Canyon Mining District, San Juan County, Utah, USA | 
  
           
   | 
   | 
   | Lemanskiite | 
  R200011 | 
  NaCaCu5(AsO4)4Cl·3H2O | 
  Bob Jenkins  | 
  El Guanaco mine, Guanaco, Santa Catalina, Antofagasta Province, Antofagasta Region, Chile | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Libyan Desert glass | 
  R060357 | 
   | 
  Herb Obodda 017 | 
  Libyan Desert, Sahara Desert, Egypt | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Lipscombite | 
  R220008 | 
  Fe2+Fe3+2(PO4)2(OH)2 | 
  Ron Gibbs  | 
  Silver Coin Mine, Valmy, Iron Point Mining District, Humboldt County, Nevada, USA | 
  
           
   | 
   | 
   | Liskeardite | 
  R060768 | 
  (Al,Fe)32(AsO4)18(OH)42(H2O)22·52H2O | 
  Michael Scott S100935 | 
  Penberthy Croft mine, St. Hilary, Cornwall, England | 
  
           
   | 
   | 
   | Lithiomarsturite | 
  R100094 | 
  LiCaMn2+3Si5O14(OH) | 
    | 
  Foote mine, Kings Mountain, North Carolina, USA | 
  
           
   | 
   | 
   | Lithiophosphate | 
  R100092 | 
  Li3(PO4) | 
  Luiz Menezes   | 
  Cachoeira mine, Itinga, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Lobanovite | 
  R120068 | 
  K2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4 | 
  Donald Doell  | 
  Apatitovaya Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Lourenswalsite | 
  R060468 | 
  (K,Ba)2Ti4(Si,Al)6O14(OH)12 | 
  Michael Scott S100196 | 
  Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA | 
  
           
   | 
   | 
   | Lueshite | 
  R090025 | 
  NaNbO3 | 
  Karl Russ  | 
  Lueshe carbonatite, Kivu Province, Democratic Republic of the Congo | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Magnussonite | 
  R100027 | 
  Mn2+10As3+6O18(OH,Cl)2 | 
  William W. Pinch  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Manaksite | 
  R060693 | 
  KNaMn2+Si4O10 | 
  Michael Scott S100949 | 
  Palitra pegmatite, Kedykverpakhk Mountain, Lovozero massif, Kola Peninsula, Russia | 
  
           
   | 
   | 
   | Manganohörnesite | 
  R061005 | 
  Mn2+3(AsO4)2·8H2O | 
  Michael Scott S101277 | 
  Mossgruven, Nordmark, Sweden | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Mansfieldite | 
  R060409 | 
  Al(AsO4)·2H2O | 
  Herb Obodda 044 | 
  Djebel Debagh, Constantine, Algeria | 
  
           
   | 
   | 
   | Mansfieldite | 
  R060951 | 
  Al(AsO4)·2H2O | 
  Bob Jenkins  | 
  Pampa Larga Mining District, Chile | 
  
           
   | 
   | 
   | Marcasite | 
  R060882 | 
  FeS2 | 
  Bob Jenkins  | 
  Ive's Quarry, Racine, Wisconsin, USA | 
  
           
   | 
   | 
   | Margaritasite | 
  R060461 | 
  Cs2(UO2)2(VO4)2·H2O | 
  Michael Scott S100084 | 
  Margaritas Open Pit, Sierra Pena Blanca, Chihuahua, Mexico | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Markascherite | 
  R100030 | 
  Cu3(MoO4)(OH)4 | 
  Mark Ascher  | 
  Childs Aldwinkle mine, Bunker Hill District, Copper Creek, Pinal County, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Mcguinnessite | 
  R070082 | 
  CuMg(CO3)(OH)2 | 
  James Shigley  | 
  Copper King mine, Red Mountain District, Mendocino County, California, USA | 
  
           
   | 
   | 
   | Meionite | 
  R040169 | 
  Ca4Al6Si6O24(CO3) | 
  University of Arizona Mineral Museum 12235 | 
  Black Hills, South Dakota, USA | 
  
           
   | 
   | 
   | Melanostibite | 
  R200016 | 
  Mn2Fe3+Sb5+O6 | 
  Markus and Stefan Wiklund #00008 | 
  Langban mine, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Mendipite | 
  R050669 | 
  Pb3O2Cl2 | 
  University of Arizona Mineral Museum 9713 | 
  Mendip Hills, Higher Pits, Somerset, England | 
  
           
   | 
   | 
   | Menezesite | 
  R060979 | 
  Ba3MgZr4Nb12O42·12H2O | 
  Michael Scott S100864 | 
  Jacupiranga mine, Cajati, Sao Paulo, Brazil | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Metavariscite | 
  R050461 | 
  Al(PO4)·2H2O | 
  University of Arizona Mineral Museum 6532 | 
  Utahlite Hill, Lucin, Utah, USA | 
  
           
   | 
   | 
   | Miassite | 
  R070075 | 
  Rh17S15 | 
  Michael Scott S105079 | 
  Yukhtochka placer, Tributary of Aldan River, Yakutia, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Minasgeraisite-(Y) | 
  R120134 | 
  CaBe2Y2Si2O10 | 
  Luiz Menezes  | 
  Jaguaraçu, Minas Gerais, Brazil | 
  
           
   | 
   | 
   | Minasragrite | 
  R130365 | 
  V4+O(SO4)·5H2O | 
  Tom Loomis  | 
  Minas Ragra mine, Pasco, Peru | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Molybdomenite | 
  R140388 | 
  PbSe4+O3 | 
  Rock Currier  | 
  Virgen de Surumi mine, Pakajake Canyon, Chayanta Province, Potosí Department, Bolivia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Montroseite | 
  R060576 | 
  (V3+,Fe2+,V4+)O(OH) | 
  Michael Scott S100805 | 
  Number Mesa 5 mine, Temple Mountain, Emery County, Utah, USA | 
  
           
   | 
   | 
   | Moorhouseite | 
  R130745 | 
  Co(SO4)·6H2O | 
  Donald Doell  | 
  Bou Azer, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Nagelschmidtite | 
  R070032 | 
  Ca7(SiO4)2(PO4)2 | 
  Michael Scott S105080 | 
  Hatrurium Formation, Negev Desert, southern Israel | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Namansilite | 
  R070006 | 
  NaMn3+Si2O6 | 
  Marcus Origlieri  | 
  Hoskins mine, near Grenfell, New South Wales, Australia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Natroboltwoodite | 
  R060880 | 
  Na(UO2)(SiO3OH)·H2O | 
  Michael Scott S100960 | 
  Alluaiv Mountain, Lovozero, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Nissonite | 
  R100068 | 
  Cu2Mg2(PO4)2(OH)2·5H2O | 
  Bob Jenkins  | 
  Boss mine, Goodsprings district, Clark County, Nevada, USA | 
  
           
   | 
   | 
   | Nitratine | 
  R050394 | 
  Na(NO3) | 
  Mark Candee  | 
  Tarapaca, Chile | 
  
           
   | 
   | 
   | Nitratine | 
  R050658 | 
  Na(NO3) | 
  University of Arizona Mineral Museum 2492 | 
  Peru | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Nordstrandite | 
  R050592 | 
  Al(OH)3 | 
  Marcus Origlieri  | 
  Cerro Sapo, Cochabamba Department, Bolivia | 
  
           
   | 
   | 
   | Nordstrandite | 
  R130093 | 
  Al(OH)3 | 
  Donald Doell  | 
  Mont St. Hilaire, Quebec, Canada | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Nosean | 
  R050422 | 
  Na8(Si6Al6)O24(SO4)·H2O | 
  Marcus Origlieri  | 
  Laacher See, Mendig Area, Eifel Mountains, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | Oligoclase | 
  X050122 | 
  (Na,Ca)(Si,Al)4O8 | 
  G.R. Rossman 680 | 
  Kenya | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Ondrušite | 
  R141029 | 
  CaCu4(AsO4)2(AsO3OH)2·10H2O | 
  William W. Pinch  | 
  Svornost mine, Jáchymov, Krušné Hory Mts, Karlovy Vary, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Oxy-schorl | 
  R140339 | 
  Na(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3O | 
  Bob Jenkins  | 
  Přibyslavice, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | Pabstite | 
  R060386 | 
  BaSnSi3O9 | 
  Michael Scott S100328 | 
  Kalkar Quarry, Santa Cruz County, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Parakeldyshite | 
  R120048 | 
  Na2ZrSi2O7 | 
  Donald Doell  | 
  Alluaiv Mt., Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia | 
  
           
   | 
   | 
   | Paramontroseite | 
  R050391 | 
  VO2 | 
  University of Arizona Mineral Museum 1743 | 
  J.J. mine, Buell Canyon District, Montrose County, Colorado, 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Parsonsite | 
  R060154 | 
  Pb2(UO2)(PO4)2 | 
  Marcus Origlieri  | 
  Faye, near Grury, France | 
  
           
   | 
   | 
   | Pascoite | 
  R060574 | 
  Ca3V5+10O28·17H2O | 
  Michael Scott S100803 | 
  Arrowhead Claim, Slick Rock, San Miguel County, Colorado, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Pharmacoalumite | 
  R060411 | 
  KAl4(AsO4)3(OH)4·6.5H2O | 
  Bob Jenkins  | 
  Maria Josefa, Rodalquilar, Almeria Province, Spain | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Plumbotsumite | 
  R110157 | 
  Pb5Si4O8(OH)10 | 
  Donald M Doell  | 
  Blue Bell claims, Baker, San Bernardino County, California, USA | 
  
           
   | 
   | 
   | Polybasite | 
  R061052 | 
  [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] | 
  Royal Ontario Museum M52499 | 
  Elsa, Yukon Territory, Canada | 
  
           
   | 
   | 
   | Polystyrene | 
  R150076 | 
   | 
  Thermo Electron Corporation  | 
  Synthetic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Prismatine | 
  R210004 | 
  (Mg,Al,Fe)6Al4(Si,Al)4(B,Si,Al)(O,OH,F)22 | 
  Dr Rainer Thomas  | 
  Goods Station Waldheim, Saxony, Germany | 
  
           
   | 
   | 
   | 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-suenoite | 
  R061000 | 
  ◻Mn2+2Fe2+5Si8O22(OH)2 | 
  Michael Scott S101306 | 
  Yokoneyama, Tochigi, Japan | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Qilianshanite | 
  R100019 | 
  NaH4(CO3)(BO3)·2H2O | 
  Dave Bish  | 
  Lewis Cliff Ice Tongue, Antarctica | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Reevesite | 
  R070678 | 
  Ni6Fe3+2(CO3)(OH)16·4H2O | 
  Michael Scott S104318 | 
  Otway Prospect, Nullagine Region, Western Australia, Australia | 
  
           
   | 
   | 
   | Reinhardbraunsite | 
  R061006 | 
  Ca5(SiO4)2(OH)2 | 
  Michael Scott S101273 | 
  Bellerberg, Eifel, Germany | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Rhodarsenide | 
  R070074 | 
  Rh2As | 
  Michael Scott S105059 | 
  Miass River, Urals, Russia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Richelsdorfite | 
  R130552 | 
  Ca2Cu5Sb5+(AsO4)4(OH)6Cl·6H2O | 
  Bob Jenkins  | 
  Silberberg, Brixlegg, Austria | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Romanèchite | 
  R060337 | 
  (Ba,H2O)2(Mn4+,Mn3+)5O10 | 
  Michael Scott S100209 | 
  6.5 miles south of Palo Verde, Imperial County, California, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Russellite | 
  R060860 | 
  Bi2WO6 | 
  Michael Scott S100858 | 
  Castle-an-Dinas mine, Saint Columb Major, Cornwall, England | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Tausonite | 
  X090004 | 
  SrTiO3 | 
  Gemological Institute of America 37794 | 
  Synthetic | 
  
           
   | 
   | 
   | Tellurobismuthite | 
  R060948 | 
  Bi2Te3 | 
  Bob Jenkins  | 
  Little Ben mine, Matheson, Ontario, Canada | 
  
           
   | 
   | 
   | Tellurobismuthite | 
  R070158 | 
  Bi2Te3 | 
  James Shigley  | 
  Boliden, Skelleftea, Vasterbotten, Sweden | 
  
           
   | 
   | 
   | Ternesite | 
  R140779 | 
  Ca5(SiO4)2(SO4) | 
  Ch. and H. Schäfer  | 
  Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Tilasite | 
  R050246 | 
  CaMg(AsO4)F | 
  Marcus Origlieri  | 
  Langban, Filipstad, Varmland, Sweden | 
  
           
   | 
   | 
   | Tilasite | 
  R060618 | 
  CaMg(AsO4)F | 
  Michael Scott S100827 | 
  Cervandone, Italy | 
  
           
   | 
   | 
   | Tinaksite | 
  R060375 | 
  K2NaCa2TiSi7O18(OH)O | 
  Michael Scott S100019 | 
  Chara River area, Murun Massif, northwest Aldan, Siberia, U.S.S.R. | 
  
           
   | 
   | 
   | Tinsleyite | 
  R070706 | 
  KAl2(PO4)2(OH)·2H2O | 
  Michael Scott S102504 | 
  Tip Top mine, Fourmile, Custer District, Custer County, South Dakota, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Tripuhyite | 
  R070383 | 
  Fe3+Sb5+O4 | 
  Michael Scott S104750 | 
  Cetine mine, Chiusdino, Siena Province, Tuscany, Italy | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Tuscanite | 
  R050324 | 
  KCa6(Si,Al)10O22(SO4,CO3)2(OH)·H2O | 
  Marcus Origlieri  | 
  Valle Biachella, Sacrofano, Roma, Lazio, Italy | 
  
           
   | 
   | 
   | Tweddillite | 
  R120125 | 
  CaSrMn3+2Al(Si2O7)(SiO4)O(OH) | 
  William W. Pinch  | 
  Wessels mine, Kalahari manganese field, Cape Province, South Africa | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Uramarsite | 
  R061122 | 
  (NH4)(UO2)(AsO4)·3H2O | 
  Michael Scott S105121 | 
  Bota-Burum Uranium deposit, Kazakhstan | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Uzonite | 
  R100020 | 
  As4S5 | 
  William Pinch  | 
  Lazaresti, Harghita County, Romania | 
  
           
   | 
   | 
   | Vaesite | 
  R070763 | 
  NiS2 | 
  Michael Scott S101616 | 
  Shaba (Katanga), Congo (Zaïre) | 
  
           
   | 
   | 
   | Vandendriesscheite | 
  R090064 | 
  Pb1.6(UO2)10O6(OH)11·11H2O | 
  William W. Pinch  | 
  Shinkolobwe mine, Katanga, Congo | 
  
           
   | 
   | 
   | Vantasselite | 
  R060371 | 
  Al4(PO4)3(OH)3·9H2O | 
  Michael Scott S100281 | 
  Bihain, Stavelot Massif, Belgium | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Wadsleyite | 
  R090004 | 
  Mg2SiO4 | 
  Hexiong Yang  | 
  Synthetic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Weeksite | 
  R050330 | 
  (K)2(UO2)2(Si5O13)·4H2O | 
  Lloyd Twaites  | 
  Anderson mine, Yavapai County, Arizona, USA | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Wiserite | 
  R130122 | 
  Mn2+14(B2O5)4(OH)8·(Si,Mg)(O,OH)4Cl | 
  Rock Currier  | 
  Kombat mine, Namibia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Yttrotungstite-(Y) | 
  R050569 | 
  Y(W,Fe,Si,Al,Ti)2(O,OH,H2O)9 | 
  University of Arizona Mineral Museum 3086 | 
  Perak, Malaysia | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Zavaritskite | 
  R070488 | 
  BiOF | 
  Michael Scott S103068 | 
  Moldava, Dubí, Krusné Hory Mts (Erzgebirge), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic | 
  
           
   | 
   | 
   | Zeophyllite | 
  R060150 | 
  Ca13Si10O28(OH)2F8·6H2O | 
  University of Arizona Mineral Museum 2957 | 
  Radzein, near Teplitz, Bohemia, Czech Republic | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | Zincroselite | 
  R100192 | 
  Ca2Zn(AsO4)2·2H2O | 
  William W Pinch  | 
  Tsumeb, Namibia | 
  
           
   | 
   | 
   | Zirsilite-(Ce) | 
  R200001 | 
  (Na,◻)12(Ce,Na)3Ca6Mn3Zr3NbSi25O73(OH)3(CO3)·H2O | 
  Don Doell  | 
  Sagasen Quarry, Morje, Porsgreunn, Telemark, Norway | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   | 
   | 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 | 
  
           
   | 
   
   
   
      | 
         Displaying: 1 - 1805
       | 
      
                | 
      
         1805 Records Found 
       | 
    
    
    |