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Cornubite Mineral Data
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General Cornubite Information
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 Chemical Formula: |
Cu5(AsO4)2(OH)4 |
| Composition: |
Molecular Weight = 681.61 gm |
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Copper 46.61 % Cu 58.35 % CuO |
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Arsenic 21.98 % As 33.72 % As2O5 |
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Hydrogen 0.89 % H 7.93 % H2O |
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Oxygen 30.51 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Cu5(AsO4)2(OH)4•(H2O) |
| Environment: |
Rare secondary mineral in oxidized copper deposits. Dimorphous with cornwallite. |
| IMA Status: |
Approved IMA 1959 |
| Locality: |
Wheal Carpenter, Cornwall, England. Link to MinDat.org Location Data. |
| Name Origin: |
Named from Cornubia, the Latin name for Cornwall, source of the first specimens. |
| Synonym: |
ICSD 30683 |
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PDF 41-1460 |
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