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Larisaite Mineral Data
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General Larisaite Information
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 Chemical Formula: |
Na(H3O)(UO2)3(SeO3)2O2•4(H2O) |
| Composition: |
Molecular Weight = 1,235.71 gm |
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Potassium 0.57 % K 0.69 % K2O |
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Sodium 1.51 % Na 2.03 % Na2O |
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Calcium 0.16 % Ca 0.23 % CaO |
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Uranium 59.52 % U 67.52 % UO2 |
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Hydrogen 0.85 % H 7.57 % H2O |
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Selenium 12.78 % Se 17.96 % SeO2 |
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Oxygen 24.61 % O |
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______ ______ |
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100.00 % 96.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.81K0.18Ca0.05(H3O)0.73(UO2)3.09O2(SeO3)2�4.1(H2O) |
| Environment: |
In sedimentary rock. Related to haynesite; structure determined |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Repete mine, near Blanding, San Juan County, Utah, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Larisa Nikolaevna Belova (1923-1998), Russian mineralogist and crystallographer. |
| Synonym: |
IMA2002-061 |
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