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Plancheite Mineral Data
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General Plancheite Information
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 Chemical Formula: |
Cu8Si8O22(OH)4•(H2O) |
| Composition: |
Molecular Weight = 1,171.08 gm |
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Copper 43.41 % Cu 54.34 % CuO |
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Silicon 19.19 % Si 41.05 % SiO2 |
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Hydrogen 0.52 % H 4.62 % H2O |
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Oxygen 36.89 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Cu8Si8O22(OH)4•(H2O) |
| Environment: |
Secondary mineral in the oxidized zones of copper deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1908 |
| Locality: |
Tantara and Kambowe, Zaire. Link to MinDat.org Location Data. |
| Name Origin: |
Named after J. Planche who brought it from Africa. |
| Name Pronunciation: |
Plancheite + Pronunciation  |
| Synonym: |
Bisbeeite |
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ICSD 100073 |
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Katangaite |
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Katangite |
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PDF 29-576 |
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