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Sinkankasite Mineral Data
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General Sinkankasite Information
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 Chemical Formula: |
H2MnAl(PO4)2(OH)•6(H2O) |
| Composition: |
Molecular Weight = 398.98 gm |
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Manganese 13.77 % Mn 17.78 % MnO |
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Aluminum 6.76 % Al 12.78 % Al2O3 |
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Phosphorus 15.53 % P 35.58 % P2O5 |
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Hydrogen 3.79 % H 33.87 % H2O |
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Oxygen 60.15 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
H2Mn2+Al(PO4)2(OH)•6(H2O) |
| Environment: |
Pseudomorphs after triphylite and alterations of the same. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Barker pegmatite, SW of Keystone, Penninton County, South Dakota, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for John Sinkankas (1915-2002), Captain, U.S. Navy, and author of books on minerals and gems. |
| Name Pronunciation: |
Sinkankasite + Pronunciation  |
| Synonym: |
ICSD 80126 |
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PDF 42-597 |
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