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Strengite Mineral Data
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General Strengite Information
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 Chemical Formula: |
Fe+++PO4•2(H2O) |
| Composition: |
Molecular Weight = 186.85 gm |
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Iron 29.89 % Fe 42.73 % Fe2O3 |
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Phosphorus 16.58 % P 37.98 % P2O5 |
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Hydrogen 2.16 % H 19.28 % H2O |
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Oxygen 51.38 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe3+(PO4)•2(H2O) |
| Environment: |
Alteration of iron-bearing phosphates. Forms a series with variscite. |
| IMA Status: |
Valid Species (Pre-IMA) 1877 |
| Locality: |
Eleonore iron mine, Giessen, near Waldgirmes, Thuringia, Germany Link to MinDat.org Location Data. |
| Name Origin: |
Named after Johann August Streng (1830-1897), German mineralogist, University of Giessen, Germany. |
| Name Pronunciation: |
Strengite + Pronunciation  |
| Synonym: |
Barrandite |
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Globosite |
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