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Gold Circle District (Midas District), Elko Co., Nevada, USA
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | ||
|---|---|---|
| Gold | 1.AA.05 | Au |
| var: Electrum | 1.AA.05 | (Au, Ag) |
| Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | ||
| Acanthite | 2.BA.35 | Ag2S |
| Aguilarite | 2.BA.55 | Ag4SeS |
| Arsenopyrite | 2.EB.20 | FeAsS |
| Berzelianite | 2.BA.20 | Cu2Se |
| Chalcopyrite | 2.CB.10a | CuFeS2 |
| Cinnabar | 2.CD.15a | HgS |
| Clausthalite | 2.CD.10 | PbSe |
| Eskebornite | 2.CB.10a | CuFeSe2 |
| Eucairite | 2.BA.50 | AgCuSe |
| Fischesserite | 2.BA.75 | Ag3AuSe2 |
| Galena | 2.CD.10 | PbS |
| Marcasite | 2.EB.10a | FeS2 |
| Naumannite | 2.BA.55 | Ag2Se |
| Polybasite | 2.GB.15 | [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4] |
| Proustite | 2.GA.05 | Ag3AsS3 |
| Pyrargyrite | 2.GA.05 | Ag3SbS3 |
| Pyrite | 2.EB.05a | FeS2 |
| Sphalerite | 2.CB.05a | ZnS |
| Stephanite | 2.GB.10 | Ag5SbS4 |
| Stromeyerite | 2.BA.40 | AgCuS |
| Tetrahedrite | 2.GB.05 | (Cu,Fe,Ag,Zn)12Sb4S13 |
| Group 3 - Halides | ||
| Chlorargyrite | 3.AA.15 | AgCl |
| Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | ||
| Goethite | 4.FD.10 | α-Fe3+O(OH) |
| Hematite | 4.CB.05 | Fe2O3 |
| Opal | 4.DA.10 | SiO2 · nH2O |
| Quartz | 4.DA.05 | SiO2 |
| var: Amethyst | 4.DA.05 | SiO2 |
| var: Chalcedony | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | ||
| Calcite | 5.AB.05 | CaCO3 |
| Siderite | 5.AB.05 | FeCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | ||
| Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | ||
| Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| var: Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified Minerals | ||
| 'Chlorite Group' | - | |
| 'K Feldspar var: Adularia' | - | KAlSi3O8 |
| Limonite | - | FeO(OH) · nH2O |
| 'Serpentine Group' | - | D2[Si2O5](OH)4 + or - nH2O |
| 'Smectite Group' | - | A0.3D2-3[T4O10]Z2 · nH2O |
| 'Wad' | - | |
46 entries listed. 40 valid minerals.
References
E. Rott (1931) Ore deposits of the Gold Circle Mining District, Elko County, Nevada. Nevada Bureau Mines Bulletin 12.
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Locality Updated: Myall Lakes Reserve, Bolton, Victoria, AustraliaFrom Pat Sutton, 23rd May 2013 01:30:19