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Pararobertsite Mineral Data
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General Pararobertsite Information
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 Chemical Formula: |
Ca2Mn+++3(PO4)3O2•3(H2O) |
| Composition: |
Molecular Weight = 615.93 gm |
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Calcium 13.01 % Ca 18.21 % CaO |
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Manganese 26.76 % Mn 38.45 % Mn2O3 |
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Phosphorus 15.09 % P 34.57 % P2O5 |
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Hydrogen 0.98 % H 8.77 % H2O |
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Oxygen 44.16 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2Mn3+3(PO4)3O2•3(H2O) |
| Environment: |
Rare secondary mineral in a complex zoned granite pegmatite. |
| IMA Status: |
Approved IMA 1989 |
| Locality: |
Tip Top mine, 8.5 km southwest of Custer, Custer Co., South Dakota, USA. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek para, for near, and its relation to robertsite. |
| Name Pronunciation: |
Pararobertsite + Pronunciation  |
| Synonym: |
ICSD 89712 |
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PDF 45-1440 |
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