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Fougerite Mineral Data
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General Fougerite Information
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 Chemical Formula: |
(Fe++,Mg)6Fe+++2(OH)18•4(H2O) |
| Composition: |
Molecular Weight = 777.66 gm |
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Magnesium 4.69 % Mg 7.77 % MgO |
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Iron 46.68 % Fe 41.57 % FeO / 20.54 % Fe2O3 |
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Hydrogen 3.37 % H 30.12 % H2O |
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Oxygen 45.26 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+4.5Mg1.5Fe3+2(OH)18•4(H2O) |
| Environment: |
Poorly drained soils ensuring reducing conditions. Meixnerite group. |
| IMA Status: |
Proposed IMA 2003 (Dana # Added) |
| Locality: |
Discovered coloring (green) the soil of the Foug�res Forest in the Ille-et-Vilaine region of France Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
Green Rust |
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IMA2003-057 |
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