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Tinsleyite Mineral Data
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General Tinsleyite Information
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 Chemical Formula: |
KAl2(PO4)2(OH)•2(H2O) |
| Composition: |
Molecular Weight = 336.04 gm |
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Potassium 11.63 % K 14.02 % K2O |
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Aluminum 16.06 % Al 30.34 % Al2O3 |
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Phosphorus 18.43 % P 42.24 % P2O5 |
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Hydrogen 1.50 % H 13.40 % H2O |
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Oxygen 52.37 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KAl2(PO4)2(OH)•2(H2O) |
| Environment: |
Found in highly altered triphylite pods in the intermediate zone of the pegmatite. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Tip Top pegmatite, 8.8 km SE of Custer, Custer County, South Dakota, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Frank C. Tinsley (1916-), mineral collector, Black Hills specialist of Rapid City, South Dakota, USA. |
| Name Pronunciation: |
Tinsleyite + Pronunciation  |
| Synonym: |
ICSD 407356 |
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PDF 38-351 |
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