Important Update News
The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.
The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.
We are grateful to NASA for the funding of this effort.
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Welcome to the RRUFF Project website containing an integrated database of Raman spectra, X-ray diffraction and chemistry data for minerals. |
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Liebigite RRUFF ID: R050662 |
Ideal Chemistry: Ca2(U6+O2)(CO3)3·11H2O |
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Locality: Schwartzwaelder mine, Jefferson County, Colorado, USA Source: University of Arizona Mineral Museum 9102 Owner: RRUFF Description: Yellowish-green flaky aggregate Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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Likasite RRUFF ID: R060327 |
Ideal Chemistry: Cu2+3N5+O3(OH)5·2H2O |
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Locality: Dzhezkazgan, Kazakhstan Source: Michael Scott S100260 Owner: RRUFF Description: Blue granular Status: The identification of this mineral is not yet confirmed. |
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| Quick search: [ All Likasite samples (2) ] | ||||||||||
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Likasite RRUFF ID: R090009 |
Ideal Chemistry: Cu2+3N5+O3(OH)5·2H2O |
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Locality: Likasi Mine, Jadotville, Katanga, Zaire Source: William W. Pinch Owner: RRUFF Description: Electric blue acicular crystals in a vug on cuprite matrix. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Likasite samples (2) ] | ||||||||||
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Lileyite RRUFF ID: R140773 |
Ideal Chemistry: Ba2Ti4+2Na2Fe2+Mg(Si2O7)2O2F2 |
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Locality: Graulay, Hillesheim, Eifel, Rhineland-Palatinate, Germany Source: Ch. and H. Schäfer Owner: RRUFF Description: Reddish brown prismatic crystals with fine striations, associated with pyroxene, schorlomite and leucite. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Lamprophyllite (9) ] | ||||||||||
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Lillianite RRUFF ID: R110141 |
Ideal Chemistry: Pb2+3-2xAg1+xBi3+2+xS2-6 |
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Locality: Pedro claim, King County, Washington, USA Source: Rob Lavinsky Owner: RRUFF Description: Elongated prismatic silver gray metallic crystal, with severe exterior corrosion associated with aikinite, galena, neyite, and gustavite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Lillianite (17) ] | ||||||||||
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Linarite RRUFF ID: R060130 |
Ideal Chemistry: Pb2+Cu2+S6+O4(OH)2 |
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Locality: Graham County, Arizona, USA Source: University of Arizona Mineral Museum 9890 Owner: RRUFF Description: Azure-blue fragments in quartz Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Linarite (8) ] | ||||||||||
| Quick search: [ All Linarite samples (3) ] | ||||||||||
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Linarite RRUFF ID: R060472 |
Ideal Chemistry: Pb2+Cu2+S6+O4(OH)2 |
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Locality: Tiger, Arizona, USA Source: Michael Scott S100365 Owner: RRUFF Description: Blue tabular crystals Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Linarite (8) ] | ||||||||||
| Quick search: [ All Linarite samples (3) ] | ||||||||||
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Linarite RRUFF ID: R120094 |
Ideal Chemistry: Pb2+Cu2+S6+O4(OH)2 |
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Locality: Daoping mine, Guangxi, China Source: Michael Scott S101361 Owner: RRUFF Description: Massive crystalline blebs associated with cerussite, dundasite R060760, and anglesite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Linarite (8) ] | ||||||||||
| Quick search: [ All Linarite samples (3) ] | ||||||||||
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Lindgrenite RRUFF ID: R050213 |
Ideal Chemistry: Cu2+3(Mo6+O4)2(OH)2 |
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Locality: Chuquicamata mine, Calama, Antofagasta Province, Chile Source: John Dagenais Owner: RRUFF Description: Green tabular single crystals Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Quick search: [ All Lindgrenite samples (3) ] | ||||||||||
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Lindgrenite RRUFF ID: R060241 |
Ideal Chemistry: Cu2+3(Mo6+O4)2(OH)2 |
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Locality: San Samuel mine, Carrera Pinto, Chile Source: Rock Currier Owner: RRUFF Description: Dark green tabular crystals associated with antlerite, pseudomalachite, albite, dravite and monazite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Quick search: [ All Lindgrenite samples (3) ] | ||||||||||
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Lindgrenite RRUFF ID: R110061 |
Ideal Chemistry: Cu2+3(Mo6+O4)2(OH)2 |
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Locality: Childs Aldwinkle mine, Copper Creek, Pinal County, Arizona, USA Source: Ron Gibbs Owner: RRUFF Description: Pale green needles Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Quick search: [ All Lindgrenite samples (3) ] | ||||||||||
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Línekite RRUFF ID: R141026 |
Ideal Chemistry: K2Ca3[(U6+O2)(CO3)3]2·8H2O |
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Locality: Svornost Mine, Jáchymov, Krušné Hory Mts, Karlovy Vary, Bohemia, Czech Republic Source: William W. Pinch Owner: RRUFF Description: Light green tabular crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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Liottite RRUFF ID: R120045 |
Ideal Chemistry: Na16Ca8Si18Al18O72(S6+O4)5Cl4 |
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Locality: Case Collina (Toscopomici quarry), Pitigliano, Grosseto Province, Tuscany, Italy Source: R. Van Dommelen Owner: RRUFF Description: Pseudhexagonal colorless crystals, associated with grossular Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ cancrinite-sodalite (37) ] | ||||||||||
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Lipscombite RRUFF ID: R220008 |
Ideal Chemistry: Fe2+Fe3+2(PO4)2(OH)2 |
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Locality: Silver Coin Mine, Valmy, Iron Point Mining District, Humboldt County, Nevada, USA Source: Ron Gibbs Owner: RRUFF Description: euhedral green crystals on perhamite. Status: The identification of this mineral has been confirmed by X-ray diffraction. |
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| Mineral Group: [ Lipscombite (1) ] | ||||||||||
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Lipuite RRUFF ID: R140946 |
Ideal Chemistry: KNa8Mn3+5Mg0.5(Si12O30(OH)4)(PO4)O2(OH)2·4H2O |
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Locality: N'Chwaning III mine, Kalahari manganese field, Northern Cape Province, South Africa Source: Jaco and Tania Janse van Nieuwenhuizen Owner: RRUFF Description: Dark reddish brown massive crystalline, associated with sugilite (R130754) Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Not in a structural group (133) ] | ||||||||||
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Liroconite RRUFF ID: R050535 |
Ideal Chemistry: Cu2+2AlAs5+O4(OH)4·4H2O |
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Locality: Wheal Gorland, St. Day, Cornwall, England Source: University of Arizona Mineral Museum 291 Owner: RRUFF Description: Blue tabular crystals Status: The identification of this mineral has been confirmed by X-ray diffraction. |
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| Mineral Group: [ Liroconite (1) ] | ||||||||||
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Liskeardite RRUFF ID: R060768 |
Ideal Chemistry: (Al,Fe3+)32(As5+O4)18(OH)42(H2O)22·52H2O |
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Locality: Penberthy Croft mine, St. Hilary, Cornwall, England Source: Michael Scott S100935 Owner: RRUFF Description: White fibrous earthy crust Status: The identification of this mineral is not yet confirmed. |
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Litharge RRUFF ID: R060959 |
Ideal Chemistry: Pb2+O |
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Locality: Langban, Filipstad, Varmland, Sweden Source: Michael Scott S101289 Owner: RRUFF Description: Red to red-orange crusts associated with black jacobsite and calcite Status: The identification of this mineral is not yet confirmed. |
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Lithiomarsturite RRUFF ID: R100094 |
Ideal Chemistry: LiCaMn2+3Si5O14(OH) |
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Locality: Foote mine, Kings Mountain, North Carolina, USA Source: Owner: RRUFF Description: Tan colored prismatic crystals, associated with brannockite, fluorapatite, albite, bavenite, and pyrite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Rhodonite (16) ] | ||||||||||
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Lithiophilite RRUFF ID: R070303 |
Ideal Chemistry: LiMn2+PO4 |
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Locality: Vittaniemi, Erajarvi, Orivesi, Etela-Suomen Laani, Finland Source: James Shigley Owner: RRUFF Description: Yellowish brown massive associated with muscovite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Olivine (61) ] | ||||||||||
| Quick search: [ All Lithiophilite samples (2) ] | ||||||||||
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Lithiophilite RRUFF ID: R100096 |
Ideal Chemistry: LiMn2+PO4 |
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Locality: Foote mine, Kings Mountain, North Carolina, USA Source: Owner: RRUFF Description: Parallel aggregate of pale pink acicular crystals, associated with quartz, muscovite, and elongated platy bertrandite, R110025. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Olivine (61) ] | ||||||||||
| Quick search: [ All Lithiophilite samples (2) ] | ||||||||||
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Lithiophorite RRUFF ID: R070083 |
Ideal Chemistry: (Al,Li)Mn4+O2(OH)2 |
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Locality: Sausalito Road Quarry, Sausalito, Marine County, California, USA Source: James Shigley Owner: RRUFF Description: Aggregates of shiny black spheres Status: The identification of this mineral is not yet confirmed. |
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Lithiophosphate RRUFF ID: R100092 |
Ideal Chemistry: Li3PO4 |
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Locality: Cachoeira mine, Itinga, Minas Gerais, Brazil Source: Luiz Menezes Owner: RRUFF Description: Colorless fragments and prismatic crystals Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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Lithiotantite RRUFF ID: R100165 |
Ideal Chemistry: LiTa5+3O8 |
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Locality: Murundu mine, Jenipapo district, Itinga, Minas Gerais, Brazil Source: Luiz Menezes Owner: RRUFF Description: Brown bladed crystals associated with reddish brown prismatic tantalite, and black cassiterite. Used in the Menezes et al (2012) study. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Columbite (32) ] | ||||||||||
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Litidionite RRUFF ID: R130088 |
Ideal Chemistry: KNaCu2+Si4O10 |
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Locality: Mt Vesuvius, Napoli, Italy Source: Rock Currier Owner: RRUFF Description: Blue to green glassy, massive. The two larger fragments are from the 1880 eruption. The smaller fragment is from 1873. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Mineral Group: [ Litidionite (3) ] | ||||||||||
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Liudongshengite RRUFF ID: R180016 |
Ideal Chemistry: Zn2+4Cr3+2(OH)12(CO3)·3H2O |
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Locality: 79 mine, Gila Co., Arizona, USA Source: Ron Gibbs Owner: RRUFF Description: Pinkish hexagonal thin platy crystals, associated with cerussite, malachite, rosasite, hemimorphite, mimetite, wulfenite, fornacite, and rarely linarite and kuksite. This is the type specimen. Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Hydrotalcite (22) ] | ||||||||||
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Livingstonite RRUFF ID: R050427 |
Ideal Chemistry: Hg2+Sb3+4S2-6(S2)2- |
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Locality: Huitzuco, Guerrero, Mexico Source: University of Arizona Mineral Museum 13426 Owner: RRUFF Description: Aggregate of blackish-gray elongated crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Livingstonite samples (2) ] | ||||||||||
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Livingstonite RRUFF ID: R050453 |
Ideal Chemistry: Hg2+Sb3+4S2-6(S2)2- |
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Locality: Huitzuco, Guerrero, Mexico Source: University of Arizona Mineral Museum 13667 Owner: RRUFF Description: Aggregate of gray columnar crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Livingstonite samples (2) ] | ||||||||||
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Lizardite RRUFF ID: R060006 |
Ideal Chemistry: Mg3Si2O5(OH)4 |
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Locality: Snarum, Norway Source: University of Arizona Mineral Museum 2896 Owner: RRUFF Description: Green blebs of fine-grained serpentine habit, polytype 1T, associated with pearly hydrotalcite Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Groups: [ serpentine (12) ] [ Clay (86) ] | ||||||||||
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Lobanovite RRUFF ID: R120068 |
Ideal Chemistry: K2Na(Fe2+4Mg2Na)Ti4+2(Si4O12)2O2(OH)4 |
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Locality: Apatitovaya Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Source: Donald Doell Owner: RRUFF Description: Massive transparent golden sheets associated with light green aegirine Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ astrophyllite (11) ] [ Devitoite (2) ] | ||||||||||
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Lokkaite-(Y) RRUFF ID: R061092 |
Ideal Chemistry: CaY4(CO3)7·9H2O |
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Locality: Mitsukoshi, Hizen-cho, Karatsu City, Saga Prefecture, Japan Source: Marcus Origlieri Owner: RRUFF Description: Pale pink radial aggregate of blades Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Tengerite (3) ] | ||||||||||
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Löllingite RRUFF ID: R060185 |
Ideal Chemistry: Fe3+(As2)3- |
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Locality: MW Claim, Seagull Batholith, Cassiar Mountains, Yukon, Canada Source: Lloyd Twaites Owner: RRUFF Description: Steel-gray metallic fragments Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Lollingite (8) ] | ||||||||||
| Quick search: [ All Löllingite samples (3) ] | ||||||||||
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Löllingite RRUFF ID: R060668 |
Ideal Chemistry: Fe3+(As2)3- |
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Locality: Aghbar near Bou-Azzer, Morocco Source: Michael Scott S101325 Owner: RRUFF Description: Gray metallic spears radiating in spherical aggregates, associated with arsenopyrite and skutterudite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Lollingite (8) ] | ||||||||||
| Quick search: [ All Löllingite samples (3) ] | ||||||||||
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Löllingite RRUFF ID: R070592 |
Ideal Chemistry: Fe3+(As2)3- |
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Locality: Ebisu mine, Hirukawa, Gifu Prefecture, Honshu, Japan Source: James Shigley Owner: RRUFF Description: Steel gray massive associated with quartz Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Lollingite (8) ] | ||||||||||
| Quick search: [ All Löllingite samples (3) ] | ||||||||||
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Lombardoite RRUFF ID: R220033 |
Ideal Chemistry: Ba2Mn3+(As5+O4)2(OH) |
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Locality: Valletta mine, Maira Valley, Piedmont, Italy Source: Fernando Cámara Owner: Fernando Cámara Description: Dark red platy tablets associated with quartz. Type sample from Cámara et al (2022) Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Brackebuschite (17) ] | ||||||||||
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Lomonosovite RRUFF ID: R070465 |
Ideal Chemistry: Na6Na2Ti4+2Na2Ti4+2(Si2O7)2(PO4)2O4 |
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Locality: Apatitovyi Tsirk (Apatite Circus), Rasvumchorr Mountain, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Source: Michael Scott S105790 Owner: RRUFF Description: Light tan platy crystals associated with orthoclase and lamprophyllite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Epistolite (9) ] | ||||||||||
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Loomisite RRUFF ID: R210017 |
Ideal Chemistry: Ba[Be2P2O8]·H2O |
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Locality: Big Chief mine, Pennington County, South Dakota, USA Source: Tom Loomis TL256A Owner: RRUFF Description: White acicular divergent crystals, associated with white bladed dondoellite, and yellow needle earlshannonite. Status: unconfirmed |
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Loparite-(Ce) RRUFF ID: R070251 |
Ideal Chemistry: (Na,Ce3+,Sr)(Ce3+,Th4+)(Ti4+,Nb5+)2O6 |
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Locality: Maly Mannepakhk Mt (Malyi Mannepakhk Mt), Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Source: Michael Scott S105531 Owner: RRUFF Description: Black interpenetrating cubes associated with green aegirine and sugary microcline Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Perovskite (44) ] | ||||||||||
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Lópezite RRUFF ID: R070043 |
Ideal Chemistry: K2Cr6+2O7 |
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Locality: Synthetic, made in the Czech Republic Source: Michael Scott S101397 Owner: RRUFF Description: Red single crystal Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Lorándite RRUFF ID: R060961 |
Ideal Chemistry: Tl1+As3+S2-2 |
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Locality: Allchar, Macedonia Source: Michael Scott S101334 Owner: RRUFF Description: Deep red prisms or tabular crystals, associated with prismatic realgar. Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Lorándite samples (2) ] | ||||||||||
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Lorándite RRUFF ID: R110055 |
Ideal Chemistry: Tl1+As3+S2-2 |
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Locality: Xingren County, Qianxi'nan Autonomous Prefecture, Guizhou Province, China Source: Don Doell Owner: RRUFF Description: Red platy crystals and cleavages Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Lorándite samples (2) ] | ||||||||||
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Lorenzenite RRUFF ID: R060960 |
Ideal Chemistry: Na2Ti4+2O3(Si2O6) |
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Locality: Khibiny Massif, Kola Peninsula, Russia Source: Michael Scott S101383 Owner: RRUFF Description: Dark brown prismatic single crystal Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Lorenzenite samples (2) ] | ||||||||||
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Lorenzenite RRUFF ID: R130051 |
Ideal Chemistry: Na2Ti4+2O3(Si2O6) |
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Locality: Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada Source: Don Doell Owner: RRUFF Description: A jumbled mass of colorless hair-like crystals associated with black arfvedsonite and white microcline Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Lorenzenite samples (2) ] | ||||||||||
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Lotharmeyerite RRUFF ID: R060862 |
Ideal Chemistry: CaZn2+2(As5+O4)2·2H2O |
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Locality: Mapimi, Durango, Mexico Source: Michael Scott S100871 Owner: RRUFF Description: Dark reddish brown bladed crystals, crystal structure is reported by Yang et al (2012) Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Natrochalcite (13) ] | ||||||||||
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Lourenswalsite RRUFF ID: R060468 |
Ideal Chemistry: (K,Ba)2Ti4+4(Si,Al)6O14(OH)12 |
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Locality: Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA Source: Michael Scott S100196 Owner: RRUFF Description: Rosettes of gray platy crystals Status: The identification of this mineral is not yet confirmed. |
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Lovozerite RRUFF ID: R080107 |
Ideal Chemistry: Na3CaZr4+Si6O15(OH)3 |
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Locality: Mont Saint-Hilaire, Quebec, Canada Source: William W. Pinch Owner: RRUFF Description: Small tan blocky crystals associated with sodalite and microcline Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ Lovozerite (3) ] [ Zirsinalite–Lovozerite (3) ] | ||||||||||
| Quick search: [ All Lovozerite samples (2) ] | ||||||||||
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Lovozerite RRUFF ID: R120159 |
Ideal Chemistry: Na3CaZr4+Si6O15(OH)3 |
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Locality: Poudrette quarry, Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Source: Donald Doell Owner: RRUFF Description: Yellow massive on ussingite (R140806). Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Groups: [ Lovozerite (3) ] [ Zirsinalite–Lovozerite (3) ] | ||||||||||
| Quick search: [ All Lovozerite samples (2) ] | ||||||||||
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Luanheite RRUFF ID: R060677 |
Ideal Chemistry: Ag3Hg |
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Locality: Elisa de Bordos mine, Tierra Amarilla, Chile Source: Bob Jenkins Owner: RRUFF Description: White and black tarnish massive mixture Status: The identification of this mineral is not yet confirmed. |
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Ludjibaite RRUFF ID: R060413 |
Ideal Chemistry: Cu2+5(PO4)2(OH)4 |
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Locality: Sossego, Carajas, Brazil Source: Bob Jenkins Owner: RRUFF Description: Bluish-green groups of colliform aggregates Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Medenbachite (1) ] | ||||||||||
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Ludlamite RRUFF ID: R040152 |
Ideal Chemistry: Fe2+3(PO4)2·4H2O |
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Locality: Cobalt, Lemhi County, Idaho, USA Source: University of Arizona Mineral Museum 15641 Owner: RRUFF Description: Green tabular single crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Quick search: [ All Ludlamite samples (3) ] | ||||||||||
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Ludlamite RRUFF ID: R060485 |
Ideal Chemistry: Fe2+3(PO4)2·4H2O |
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Locality: Blackbird District, Lehmi County, Idaho, USA Source: Michael Scott S100357 Owner: RRUFF Description: Green tabular crystals associated with siderite, pyrite and quartz Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Quick search: [ All Ludlamite samples (3) ] | ||||||||||
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Ludlamite RRUFF ID: R090071 |
Ideal Chemistry: Fe2+3(PO4)2·4H2O |
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Locality: Cigana Mine (ex-Jocão Mine), Galiléia, Minas Gerais Brazil Source: Royal Ontario Museum M54960 Owner: RRUFF Description: Groups of colorless tabular crystals on reddish-brown reddingite R090069, associated with pink hureaulite R090070. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Quick search: [ All Ludlamite samples (3) ] | ||||||||||
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Ludlockite RRUFF ID: R100176 |
Ideal Chemistry: Pb2+Fe3+4As3+10O22 |
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Locality: Tsumeb, Namibia Source: William W. Pinch Owner: RRUFF Description: Red fibrous crystals that display significant flexibility Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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Ludwigite RRUFF ID: R060010 |
Ideal Chemistry: Mg2Fe3+O2(BO3) |
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Locality: Victoria Quarry, Riverside, California, USA Source: University of Arizona Mineral Museum 9094 Owner: RRUFF Description: Black elongated prismatic crystals, associated with pale yellow clinohumite on white calcite matrix Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Ludwigite (5) ] | ||||||||||
| Quick search: [ All Ludwigite samples (2) ] | ||||||||||
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Ludwigite RRUFF ID: R060844 |
Ideal Chemistry: Mg2Fe3+O2(BO3) |
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Locality: Crestmore, California, USA Source: Bob Jenkins Owner: RRUFF Description: Black elongated prismatic crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Ludwigite (5) ] | ||||||||||
| Quick search: [ All Ludwigite samples (2) ] | ||||||||||
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Lueshite RRUFF ID: R090025 |
Ideal Chemistry: NaNb5+O3 |
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Locality: Lueshe carbonatite, Kivu Province, Democratic Republic of the Congo Source: Karl Russ Owner: RRUFF Description: Black cubes Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Perovskite (44) ] | ||||||||||
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Luetheite RRUFF ID: R060088 |
Ideal Chemistry: Cu2+Al(As5+O4)(OH)2 |
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Locality: Alum Gulch, Patagonia, Arizona, USA Source: Andy Anderson Owner: RRUFF Description: Pale blue fine-grained Status: The identification of this mineral has been confirmed only by chemical analysis |
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| Mineral Group: [ Chenevixite (3) ] | ||||||||||
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Lulzacite RRUFF ID: R110147 |
Ideal Chemistry: Sr2Fe2+3Al4(PO4)4(OH)10 |
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Locality: Saint-Aubin-des-Châteaux, Loire-Atlantique, France Source: Olivier Pourret Owner: RRUFF Description: Gray glassy and massive, associated with siderite and pyrite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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Lüneburgite RRUFF ID: R140143 |
Ideal Chemistry: Mg3[B2(OH)6(PO4)2]·6H2O |
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Locality: Lüneburger Kalkberg, Lüneburg, Lower Saxony, Germany Source: Rock Currier Owner: RRUFF Description: Massive, vitreous, white with silky sheen, with minor limonitic staining Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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Luzonite RRUFF ID: R060390 |
Ideal Chemistry: Cu3AsS2-4 |
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Locality: Bern-Shan Pit, Chinkuashi mine, Taipei, Taiwan, Republic of China Source: Michael Scott S100181 Owner: RRUFF Description: Black coarse massive with two directions of obvious cleavage Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Groups: [ Stannite (11) ] [ Sphalerite (35) ] | ||||||||||
| Quick search: [ All Luzonite samples (2) ] | ||||||||||
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Luzonite RRUFF ID: R070247 |
Ideal Chemistry: Cu3AsS2-4 |
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Locality: Huaron Mining District, San Jose de Huayllay district, Cerro de Pasco, Alcides Carrión Province, Pasco department, Peru Source: Michael Scott S105151 Owner: RRUFF Description: Black metallic crystals with pinkish hue. The electron microscope image shows three distinct fine-scale phases related to As and Sb content Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Groups: [ Stannite (11) ] [ Sphalerite (35) ] | ||||||||||
| Quick search: [ All Luzonite samples (2) ] | ||||||||||
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Macdonaldite RRUFF ID: R060770 |
Ideal Chemistry: BaCa4Si16O36(OH)2·10H2O |
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Locality: Rush Creek, Fresno County, California, USA Source: Michael Scott S101090 Owner: RRUFF Description: Radiating aggregates of white platy crystals Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Rhodesite (5) ] | ||||||||||
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Macfallite RRUFF ID: R060391 |
Ideal Chemistry: Ca2Mn3+3(SiO4)(Si2O7)(OH)3 |
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Locality: near Manganese Lake, Copper Harbor, Keweenaw County, Michigan, USA Source: Michael Scott S100092 Owner: RRUFF Description: Reddish-brown radial aggregate of bladed crystals associated with braunite, quartz, calcite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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Mackayite RRUFF ID: R060592 |
Ideal Chemistry: Fe3+Te4+2O5(OH) |
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Locality: Lone Pine mine, Lone Pine Hill area, Wilcox District, Catron County, New Mexico, USA Source: Michael Scott S100792 Owner: RRUFF Description: Greenish-brown octahedral crystals associated with quartz Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Mackinawite RRUFF ID: R060388 |
Ideal Chemistry: (Fe,Ni)1-1.07S |
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Locality: Hitura, Finland Source: Michael Scott S100089 Owner: RRUFF Description: Bronze thin tabular crystals in parallel packing Status: The identification of this mineral is not yet confirmed. |
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| Quick search: [ All Mackinawite samples (2) ] | ||||||||||
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Mackinawite RRUFF ID: R070302 |
Ideal Chemistry: (Fe,Ni)1-1.07S |
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Locality: Wannaway Prospect, near Kalgoorlie, Western Australia, Australia Source: James Shigley Owner: RRUFF Description: Bronze metallic massive, drill core Status: The identification of this mineral is not yet confirmed. |
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| Quick search: [ All Mackinawite samples (2) ] | ||||||||||
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Macquartite RRUFF ID: R210020 |
Ideal Chemistry: Cu2+2Pb2+7(Cr6+O4)4(SiO4)2(OH)2 |
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Locality: Mammoth-Sth. Anthony M., Tiger, Pinal County, Arizona, USA Source: Bob Jenkins Owner: RRUFF Description: Orange euhedral prismatic crystals in quartz vugs, associated with blue-green prismatic diaboleite, yellow-orange platy wulfenite, dark grey vauquelinite. Status: The identification of this mineral has been confirmed by X-ray diffraction. |
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Magadiite RRUFF ID: R060994 |
Ideal Chemistry: Na2Si14O28(OH)2·8H2O |
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Locality: Trinity Lake, Trinity County, California, USA Source: Bob Jenkins Owner: RRUFF Description: White compacted fine-grained silt Status: The identification of this mineral is not yet confirmed. |
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Maghemite RRUFF ID: R140712 |
Ideal Chemistry: (Fe3+0.67◻0.33)Fe3+2O4 |
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Locality: Katzenbuckel, Eberbach, Odenwald, Baden-Württemberg, Germany Source: Rock Currier Owner: RRUFF Description: Black aggregate of small to fine grains. Fd3m symmetry Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
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Magnesio-fluoro-arfvedsonite RRUFF ID: R050515 |
Ideal Chemistry: NaNa2(Mg4Fe3+)Si8O22F2 |
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Locality: unknown Source: Frank Hawthorne Owner: RRUFF Description: Numerous small dark green fragments Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
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Magnesio-fluoro-hastingsite RRUFF ID: R141082 |
Ideal Chemistry: NaCa2(Mg4Fe3+)(Si6Al2)O22F2 |
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Locality: Caspar quarry, Bellerberg volcano, Mayen, Eifel, Germany Source: Ch. and H. Schäfer Owner: RRUFF Description: Euhedral brown crystal embedded in matrix Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-fluoro-hastingsite samples (3) ] | ||||||||||
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Magnesio-fluoro-hastingsite RRUFF ID: R141098 |
Ideal Chemistry: NaCa2(Mg4Fe3+)(Si6Al2)O22F2 |
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Locality: Uroi Hill (Arany Hill), Simeria, Hunedoara Co., Romania Source: Ch. and H. Schäfer Owner: RRUFF Description: Prismatic brown to orange-brown crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-fluoro-hastingsite samples (3) ] | ||||||||||
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Magnesio-fluoro-hastingsite RRUFF ID: R141099 |
Ideal Chemistry: NaCa2(Mg4Fe3+)(Si6Al2)O22F2 |
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Locality: Mt. Vesuvius, Naples, Campania, Italy Source: Ch. and H. Schäfer Owner: RRUFF Description: Prismatic brown crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-fluoro-hastingsite samples (3) ] | ||||||||||
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Magnesio-foitite RRUFF ID: X050186 |
Ideal Chemistry: ◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3OH |
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Locality: Honshu, Japan Source: Caltech Owner: Caltech Description: Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ tourmaline (49) ] | ||||||||||
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Magnesio-hastingsite RRUFF ID: R040010 |
Ideal Chemistry: NaCa2(Mg4Fe3+)Si6Al2O22(OH)2 |
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Locality: Amity, New York, USA Source: University of Arizona Mineral Museum 4231 Owner: RRUFF Description: Group of black prismatic crystals Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-hastingsite samples (3) ] | ||||||||||
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Magnesio-hastingsite RRUFF ID: R070145 |
Ideal Chemistry: NaCa2(Mg4Fe3+)Si6Al2O22(OH)2 |
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Locality: Niaslo, Basha Valley, Baltistan, Northern Areas, Pakistan Source: William W. Pinch Owner: RRUFF Description: Black cleavage fragments Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-hastingsite samples (3) ] | ||||||||||
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Magnesio-hastingsite RRUFF ID: R070288 |
Ideal Chemistry: NaCa2(Mg4Fe3+)Si6Al2O22(OH)2 |
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Locality: Dallas Gem Mine (Gem Mine; Benitoite Mine), New Idria District, San Benito County, California, USA Source: Michael Scott S104903 Owner: RRUFF Description: Dark brown to black prismatic crystals frozen in albite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-hastingsite samples (3) ] | ||||||||||
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Magnesio-riebeckite RRUFF ID: R060037 |
Ideal Chemistry: ◻Na2(Mg3Fe3+2)Si8O22(OH)2 |
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Locality: Pollone, Piedmont, Italy Source: University of Arizona Mineral Museum 4236 Owner: RRUFF Description: Black bladed single crystals embedded in a white matrix of calcite Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-riebeckite samples (2) ] | ||||||||||
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Magnesio-riebeckite RRUFF ID: R070002 |
Ideal Chemistry: ◻Na2(Mg3Fe3+2)Si8O22(OH)2 |
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Locality: Alto Chapare, Cochabamba Department, Bolivia Source: Michael Scott S100846 Owner: RRUFF Description: Light bluish gray fibrous cloth-like fabric Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ amphibole (107) ] | ||||||||||
| Quick search: [ All Magnesio-riebeckite samples (2) ] | ||||||||||
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Magnesioalterite RRUFF ID: R180015 |
Ideal Chemistry: Mg2Fe3+4(S6+O4)4((C2)6+O4)2(OH)4·17H2O |
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Locality: Near Marble Canyon, Coconino County, Arizona, USA Source: Malcom Alter Owner: RRUFF Description: Isolated or aggregates of yellow brown prismatic crystals on petrified wood, associated with greenish prismatic alterite, gypsum, alunogen, and sulfur. Type sample. Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Groups: [ Alterite (2) ] [ Oxalate (13) ] | ||||||||||
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Magnesioaubertite RRUFF ID: R060344 |
Ideal Chemistry: MgAl(S6+O4)2Cl·14H2O |
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Locality: Grotta de Faraglione, Vulcano, Italy Source: Michael Scott S100113 Owner: RRUFF Description: Blue massive with a parallel fibrous texture associated with white pickeringite, co-type specimen Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Aubertite (2) ] | ||||||||||
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Magnesiocarpholite RRUFF ID: R140873 |
Ideal Chemistry: MgAl2Si2O6(OH)4 |
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Locality: Sengelbach valley, Biesenrode, Wippra Metamorphic Zone, Harz, Saxony-Anhalt, Germany Source: Stefan Schorn Owner: RRUFF Description: Green to gray fibers Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Carpholite (3) ] | ||||||||||
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Magnesiochlorophoenicite RRUFF ID: R140719 |
Ideal Chemistry: Mg3Zn2+2As5+O4(OH,O)6 |
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Locality: Sterling mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA Source: Rock Currier Owner: RRUFF Description: Radial tufts of vitreous white acicular crystals on typical Franklin Hill zinc ore. The crystals are twinned by a 2-fold axis parallel to a*. Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Chlorophoenicite (2) ] | ||||||||||
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Magnesiochromite RRUFF ID: R050399 |
Ideal Chemistry: MgCr3+2O4 |
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Locality: Troodos Mountains, Cyprus Source: Andy McCarthy Owner: RRUFF Description: Black grains Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
| Quick search: [ All Magnesiochromite samples (3) ] | ||||||||||
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Magnesiochromite RRUFF ID: R060796 |
Ideal Chemistry: MgCr3+2O4 |
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Locality: State Line Chrome mine (Low's mine), Cecil County, Maryland, USA Source: California Institute of Technology 10576 Owner: RRUFF Description: Black massive Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
| Quick search: [ All Magnesiochromite samples (3) ] | ||||||||||
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Magnesiochromite RRUFF ID: R060797 |
Ideal Chemistry: MgCr3+2O4 |
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Locality: Benbow mine, Stillwater Complex, Mount Wood area, Stillwater County, Montana, USA Source: California Institute of Technology 11227 Owner: RRUFF Description: Black granular massive Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
| Quick search: [ All Magnesiochromite samples (3) ] | ||||||||||
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Magnesiocopiapite RRUFF ID: R060155 |
Ideal Chemistry: MgFe3+4(S6+O4)6(OH)2·20H2O |
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Locality: Denver mine, Santa Cruz County, Arizona, USA Source: University of Arizona Mineral Museum 12789 Owner: RRUFF Description: Yellow fine-grained efflorescence Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Copiapite (4) ] | ||||||||||
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Magnesiocoulsonite RRUFF ID: R070218 |
Ideal Chemistry: MgV3+2O4 |
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Locality: Pereval Marble Quarry, Sludyanka (Slyudyanka), Baikal area, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Source: Michael Scott S100447 Owner: RRUFF Description: Black grains with internal hints of red Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
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Magnesioferrite RRUFF ID: R060869 |
Ideal Chemistry: MgFe3+2O4 |
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Locality: Langban, Filipstad, Varmland, Sweden Source: Michael Scott S101024 Owner: RRUFF Description: Black semimetallic massive Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
| Quick search: [ All Magnesioferrite samples (2) ] | ||||||||||
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Magnesioferrite RRUFF ID: R070127 |
Ideal Chemistry: MgFe3+2O4 |
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Locality: Langban, Filipstad, Varmland, Sweden Source: Michael Scott S100406 Owner: RRUFF Description: Black poorly formed octahedral crystals with deep red highlites, associated with hematite and calcite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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| Mineral Group: [ Spinel (66) ] | ||||||||||
| Quick search: [ All Magnesioferrite samples (2) ] | ||||||||||
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Magnesiohulsite RRUFF ID: R070223 |
Ideal Chemistry: Mg2Fe3+O2(BO3) |
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Locality: Iten'yurginskoye Deposit, Chukotka (Tchukotka) Okrug, Chukot Peninsula, Far-Eastern Region, Russia Source: Michael Scott S100449 Owner: RRUFF Description: Radiating black fibrous crystals Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Hulsite (4) ] | ||||||||||
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Magnesiokoritnigite RRUFF ID: R150002 |
Ideal Chemistry: Mg(As5+O3OH)·H2O |
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Locality: Torrecillias mine, Sala Grande, Tamarugal Province, Chile Source: Bob Jenkins Owner: RRUFF Description: Colorless tabular crystals Status: The identification of this mineral is not yet confirmed. |
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| Mineral Group: [ Koritnigite (3) ] | ||||||||||
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Magnesiotaaffeite-2N'2S RRUFF ID: R070555 |
Ideal Chemistry: Mg3BeAl8O16 |
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Locality: Tunduru, Tanzania Source: www.multicolour.com Owner: RRUFF Description: Slightly pink cut gemstone, 0.15 ct. Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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| Quick search: [ All Magnesiotaaffeite-2N'2S samples (3) ] | ||||||||||
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Magnesiotaaffeite-2N'2S RRUFF ID: X090001 |
Ideal Chemistry: Mg3BeAl8O16 |
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Locality: Ratnapura, Sri Lanka Source: William W. Pinch Owner: Bill Pinch Description: Dark grey with a hint of purple, flattened tabular hexagonal crystal Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Magnesiotaaffeite-2N'2S samples (3) ] | ||||||||||
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Magnesiotaaffeite-2N'2S RRUFF ID: R090035 |
Ideal Chemistry: Mg3BeAl8O16 |
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Locality: Ratnapura District, Sri-Lanka Source: William W. Pinch Owner: RRUFF Description: Rounded hexagonal purple crystal with pyramidal terminations Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Magnesiotaaffeite-2N'2S samples (3) ] | ||||||||||
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Magnesiotaaffeite-6N'3S RRUFF ID: X070005 |
Ideal Chemistry: Mg2BeAl6O12 |
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Locality: Tunduru, Tanzania Source: www.multicolour.com Owner: www.multicolour.com Description: Pale lavendar cut gemstone, 0.65 cts, formerly known as musgravite-18R Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Magnesiotaaffeite-6N'3S samples (2) ] | ||||||||||
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Magnesiotaaffeite-6N'3S RRUFF ID: R090019 |
Ideal Chemistry: Mg2BeAl6O12 |
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Locality: Ratnapura District, Sri Lanka Source: William W. Pinch Owner: Bill Pinch Description: Greyish purple flattened tabular hexagonal crystal Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
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| Quick search: [ All Magnesiotaaffeite-6N'3S samples (2) ] | ||||||||||
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Magnesite RRUFF ID: R040114 |
Ideal Chemistry: MgCO3 |
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Locality: Snarum, Norway Source: University of Arizona Mineral Museum 7562 Owner: RRUFF Description: Tan colored cleavage fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Calcite (36) ] | ||||||||||
| Quick search: [ All Magnesite samples (5) ] | ||||||||||
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Magnesite RRUFF ID: X050115 |
Ideal Chemistry: MgCO3 |
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Locality: Serra Das Egnas, Brazil Source: CIT 2123 Owner: Caltech Description: Status: The identification of this mineral has been determined only by Raman spectroscopy |
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| Mineral Group: [ Calcite (36) ] | ||||||||||
| Quick search: [ All Magnesite samples (5) ] | ||||||||||
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Magnesite RRUFF ID: X050116 |
Ideal Chemistry: MgCO3 |
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Locality: Gustine Merced County, California, USA Source: CIT 1450 Owner: Caltech Description: Status: The identification of this mineral has been determined only by Raman spectroscopy |
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| Mineral Group: [ Calcite (36) ] | ||||||||||
| Quick search: [ All Magnesite samples (5) ] | ||||||||||
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