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Rankachite Mineral Data
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General Rankachite Information
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 Chemical Formula: |
CaFe++V+++++4W++++++8O36•12(H2O) |
| Composition: |
Molecular Weight = 2,562.65 gm |
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Calcium 1.56 % Ca 2.19 % CaO |
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Vanadium 7.95 % V 14.19 % V2O5 |
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Iron 2.18 % Fe 2.80 % FeO |
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Hydrogen 0.94 % H 8.44 % H2O |
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Tungsten 57.39 % W 72.38 % WO3 |
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Oxygen 29.97 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
CaFe2+V5+4W8O36•12(H2O) |
| Environment: |
Secondary mineral in a mine. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Clara Mine, Wofach, Rankach Valley, Schwarzwald, Balden-Wurttenberg, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Rankachite + Pronunciation  |
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