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Ferrogedrite Mineral Data
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General Ferrogedrite Information
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 Chemical Formula: |
[ ]Fe++5Al2Si6Al2O22(OH)2 |
| Composition: |
Molecular Weight = 941.68 gm |
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Aluminum 11.46 % Al 21.66 % Al2O3 |
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Iron 29.65 % Fe 38.15 % FeO |
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Silicon 17.90 % Si 38.28 % SiO2 |
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Hydrogen 0.21 % H 1.91 % H2O |
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Oxygen 40.78 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+5Al4Si6O22(OH)2 |
| IMA Status: |
Approved IMA 1978 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named for its composition and the original gederite location at Heas, Gedres, France. |
| Name Pronunciation: |
Ferrogedrite + Pronunciation  |
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