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Bermanite Mineral Data
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General Bermanite Information
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 Chemical Formula: |
Mn++Mn+++2(PO4)2(OH)2•4(H2O) |
| Composition: |
Molecular Weight = 460.83 gm |
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Manganese 35.76 % Mn 15.39 % MnO / 34.26 % Mn2O3 |
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Phosphorus 13.44 % P 30.80 % P2O5 |
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Hydrogen 2.19 % H 19.55 % H2O |
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Oxygen 48.61 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+Mn3+2(PO4)2(OH)2•4(H2O) |
| Environment: |
A late-stage hydrothermal mineral replacing primary phosphate phases, usually triplite or lithiophilite, in complex granite pegmatites. |
| IMA Status: |
Valid Species (Pre-IMA) 1936 |
| Locality: |
In the USA, from the 7U7 Ranch, 40 km west of Hillside, Bagdad district, Yavapai Co., Arizona. Link to MinDat.org Location Data. |
| Name Origin: |
In honor of Dr. Harry Berman (1902-1944), Professor of Mineralogy, Harvard University, Cambridge, Massachusetts, USA. |
| Name Pronunciation: |
Bermanite + Pronunciation  |
| Synonym: |
ICSD 12125 |
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PDF 20-712 |
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Vierlingite |
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