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Haynesite Mineral Data
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General Haynesite Information
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 Chemical Formula: |
(UO2)3(SeO3)2(OH)2•5(H2O) |
| Composition: |
Molecular Weight = 1,188.09 gm |
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Uranium 60.10 % U 68.18 % UO2 |
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Hydrogen 1.02 % H 9.10 % H2O |
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Selenium 13.29 % Se 18.68 % SeO2 |
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Oxygen 25.59 % O |
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______ ______ |
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100.00 % 95.96 % = TOTAL OXIDE |
| Empirical Formula: |
(UO2)3(SeO3)2(OH)2•5(H2O) |
| Environment: |
Found as crusts on mudstones and sandstones of the Morrison formation. |
| IMA Status: |
Approved IMA 1991 |
| Locality: |
Repete mine near Blanding, San Juan County, Utah. USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Patrick Haynes, U.S. Geologist who first collected the mineral. |
| Name Pronunciation: |
Haynesite + Pronunciation  |
| Synonym: |
IMA1990-024 |
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