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Sodic-ferrogedrite Mineral Data
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General Sodic-ferrogedrite Information
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 Chemical Formula: |
NaFe++6AlSi6Al2O22(OH)2 |
| Composition: |
Molecular Weight = 993.53 gm |
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Sodium 2.31 % Na 3.12 % Na2O |
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Aluminum 8.15 % Al 15.39 % Al2O3 |
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Iron 33.73 % Fe 43.39 % FeO |
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Silicon 16.96 % Si 36.29 % SiO2 |
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Hydrogen 0.20 % H 1.81 % H2O |
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Oxygen 38.65 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaFe2+6Al3Si6O22(OH)2 |
| IMA Status: |
Approved IMA 1997 (Dana # Added) |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named for its composition and the original gederite location at Heas, Gedres, France. |
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