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Posnjakite Mineral Data
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General Posnjakite Information
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 Chemical Formula: |
Cu4(SO4)(OH)6•(H2O) |
| Composition: |
Molecular Weight = 470.31 gm |
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Copper 54.05 % Cu 67.65 % CuO |
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Hydrogen 1.71 % H 15.32 % H2O |
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Sulfur 6.82 % S 17.02 % SO3 |
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Oxygen 37.42 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Cu4(SO4)(OH)6•(H2O) |
| IMA Status: |
Approved IMA 1967 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named after the geochemist, E. W. Posnjak (1888-1949). |
| Name Pronunciation: |
Posnjakite + Pronunciation  |
| Synonym: |
ICSD 100276 |
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PDF 43-670 |
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