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Laubmannite Mineral Data
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General Laubmannite Information
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 Chemical Formula: |
Fe++3Fe+++6(PO4)4(OH)12 |
| Composition: |
Molecular Weight = 1,086.60 gm |
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Iron 46.26 % Fe 19.84 % FeO / 44.09 % Fe2O3 |
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Phosphorus 11.40 % P 26.13 % P2O5 |
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Hydrogen 1.11 % H 9.95 % H2O |
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Oxygen 41.23 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+3Fe3+6(PO4)4(OH)12 |
| Environment: |
Mixture of dufrenite, kidwellite and beraunite. |
| IMA Status: |
Discredited IMA 1990 |
| Locality: |
Shady, Polk Co., Arkansas, USA Link to MinDat.org Location Data. |
| Name Origin: |
Named for Heinrich Laubmann (1865-1951), German mineralogist. |
| Synonym: |
Discredited |
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