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Perloffite Mineral Data
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General Perloffite Information
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 Chemical Formula: |
Ba(Mn,Fe++)2Fe+++2(PO4)3(OH)3 |
| Composition: |
Molecular Weight = 680.92 gm |
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Barium 18.15 % Ba 20.27 % BaO |
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Calcium 1.18 % Ca 1.65 % CaO |
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Magnesium 0.36 % Mg 0.59 % MgO |
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Manganese 11.30 % Mn 14.58 % MnO |
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Iron 19.68 % Fe 4.22 % FeO / 23.45 % Fe2O3 |
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Phosphorus 13.65 % P 31.27 % P2O5 |
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Hydrogen 0.44 % H 3.97 % H2O |
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Oxygen 35.24 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ba0.9Ca0.2Mn2+1.4Fe2+0.4Mg0.1Fe3+2(PO4)3(OH)3 |
| Environment: |
Secondary mineral in a complex zoned granite pegmatite. |
| IMA Status: |
Approved IMA 1977 |
| Locality: |
Big Chief mine, one km south of Glendale, Pennington County, South Dakota, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Louis Perloff (1907-), American lawyer and collector of microscopic minerals. |
| Name Pronunciation: |
Perloffite + Pronunciation  |
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