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Gormanite Mineral Data
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General Gormanite Information
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 Chemical Formula: |
Fe++3Al4(PO4)4(OH)6•2(H2O) |
| Composition: |
Molecular Weight = 793.43 gm |
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Aluminum 13.60 % Al 25.70 % Al2O3 |
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Iron 21.12 % Fe 27.17 % FeO |
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Phosphorus 15.62 % P 35.78 % P2O5 |
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Hydrogen 1.27 % H 11.35 % H2O |
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Oxygen 48.40 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+3Al4(PO4)4(OH)6•2(H2O) |
| Environment: |
Phosphate ironstones. Forms a series with souzalite. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
Rapid Creek and Big Fish area, Yukon Territory, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Donald Herbert Groman (1922-), University of Toronto, Canada. |
| Name Pronunciation: |
Gormanite + Pronunciation  |
| Synonym: |
IMA1977-030 |
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