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Clarkeite Mineral Data
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General Clarkeite Information
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 Chemical Formula: |
(Na,Ca,Pb)(UO2)O(OH)•0-1(H2O) |
| Composition: |
Molecular Weight = 318.75 gm |
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Sodium 5.05 % Na 6.81 % Na2O |
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Calcium 1.26 % Ca 1.76 % CaO |
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Uranium 67.21 % U 76.24 % UO2 |
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Hydrogen 0.41 % H 3.67 % H2O |
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Lead 6.50 % Pb 7.00 % PbO |
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Oxygen 19.58 % O |
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______ ______ |
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100.00 % 95.48 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.7Pb0.1Ca0.1(UO2)0.9O0.9(OH)1.1•0.1(H2O) |
| Environment: |
Replacing uraninite, as a late-stage hydrothermal alteration product. |
| IMA Status: |
Valid Species (Pre-IMA) 1931 |
| Locality: |
Spruce Pine district, from the Deer Park and other mines, Mitchell County, North Carolina, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Frank Wigglesworth Clarke (1847-1931), prominent American geochemist of the US Geological Survey. |
| Synonym: |
ICSD 83456 |
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PDF 8-315 |
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