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Phosphofibrite Mineral Data
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General Phosphofibrite Information
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 Chemical Formula: |
KCuFe+++15(PO4)12(OH)12•12(H2O) |
| Composition: |
Molecular Weight = 2,500.28 gm |
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Potassium 1.56 % K 1.88 % K2O |
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Iron 33.50 % Fe 47.90 % Fe2O3 |
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Copper 2.54 % Cu 3.18 % CuO |
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Phosphorus 14.87 % P 34.06 % P2O5 |
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Hydrogen 1.45 % H 12.97 % H2O |
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Oxygen 46.07 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KCuFe3+15(PO4)12(OH)12•12(H2O) |
| Environment: |
In a hydrothermal polymetallic barite-fluorite deposit. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Clara mine, near Oberwolfach, Black Forest, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
Named for phosphorus in the composition and its characteristic fibrous habit. |
| Name Pronunciation: |
Phosphofibrite + Pronunciation  |
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