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Ferrihydrite Mineral Data
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General Ferrihydrite Information
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 Chemical Formula: |
Fe+++2O3•0.5(H2O) |
| Composition: |
Molecular Weight = 168.70 gm |
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Iron 66.21 % Fe 94.66 % Fe2O3 |
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Hydrogen 0.60 % H 5.34 % H2O |
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Oxygen 33.19 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe3+2O3•0.5(H2O) |
| Environment: |
Secondary mineral in an oxidizing environment, strongly dependant on pH. |
| IMA Status: |
Approved IMA 1973 |
| Locality: |
Clara mine, Grube Clara, Germany Link to MinDat.org Location Data. |
| Name Origin: |
Named for the composition as a hydrated ferric iron compound. |
| Name Pronunciation: |
Ferrihydrite  |
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