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Chalcophanite Mineral Data
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General Chalcophanite Information
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 Chemical Formula: |
(Zn,Fe++,Mn++)Mn++++3O7•3(H2O) |
| Composition: |
Molecular Weight = 459.22 gm |
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Manganese 40.68 % Mn 6.18 % MnO / 56.79 % MnO2 |
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Zinc 17.09 % Zn 21.27 % ZnO |
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Iron 6.08 % Fe 7.82 % FeO |
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Hydrogen 1.32 % H 11.77 % H2O |
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Oxygen 34.84 % O |
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______ ______ |
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100.00 % 103.83 % = TOTAL OXIDE |
| Empirical Formula: |
Zn1.2Fe2+0.5Mn2+0.4Mn4+3O7•3(H2O) |
| Environment: |
Common component of the weathered zone above Zn-Mn base metal deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1875 |
| Locality: |
Sterling Hill, near Ogdensburg, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek for "copper" and "to appear," for the mineral's change in color on ignition. |
| Name Pronunciation: |
Chalcophanite  |
| Synonym: |
Hydrofranklinite |
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ICSD 202700 |
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PDF 15-807 |
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