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Ferritungstite Mineral Data
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General Ferritungstite Information
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 Chemical Formula: |
(K,Ca,Na)(W++++++,Fe+++)2(O,OH)6•(H2O) |
| Composition: |
Molecular Weight = 416.40 gm |
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Potassium 1.88 % K 2.26 % K2O |
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Sodium 0.11 % Na 0.15 % Na2O |
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Calcium 0.96 % Ca 1.35 % CaO |
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Iron 6.71 % Fe 8.63 % FeO |
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Hydrogen 0.68 % H 6.06 % H2O |
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Tungsten 66.23 % W 83.52 % WO3 |
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Oxygen 23.44 % O |
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______ ______ |
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100.00 % 101.96 % = TOTAL OXIDE |
| Empirical Formula: |
K0.2Ca0.1Na0.02W1.5Fe2+0.5O4.7(H2O)1.4 |
| Environment: |
An alteration coating on and replacing primary tungsten minerals. |
| IMA Status: |
Valid Species (Pre-IMA) 1911 |
| Locality: |
Germania tungsten mine, Deer Trail district, Fruitland, Stevens County, Washington, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for FERRIc iron and TUNGsten in its composition. |
| Name Pronunciation: |
Ferritungstite  |
| Synonym: |
ICSD 79158 |
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PDF 11-331 |
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