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Geminite Mineral Data
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General Geminite Information
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 Chemical Formula: |
Cu++2As+++++2O7•3(H2O) |
| Composition: |
Molecular Weight = 442.98 gm |
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Copper 28.69 % Cu 35.91 % CuO |
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Arsenic 33.83 % As 51.89 % As2O5 |
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Hydrogen 1.37 % H 12.20 % H2O |
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Oxygen 36.12 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Cu2As2O7•3(H2O) |
| Environment: |
Coatings on quartz. |
| IMA Status: |
Approved IMA 1990 |
| Locality: |
Cap Garonne mine, Var, France. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Latin gemini, twins, in allusion to the usual character of the crystals. |
| Name Pronunciation: |
Geminite  |
| Synonym: |
ICSD 81587 |
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IMA1988-045 |
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PDF 44-1454 |
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Trichalcite |
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