Mineralogy Database

Compreignacite Mineral Data

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General Compreignacite Information

Help on Chemical  Formula: Chemical Formula: K2(UO2)6O4(OH)6•8(H2O)
Help on Composition: Composition: Molecular Weight = 2,008.53 gm
   Potassium   3.89 %  K     4.69 % K2O
   Uranium    71.11 %  U    80.66 % UO2
   Hydrogen    1.10 %  H     9.87 % H2O
   Oxygen     23.90 %  O
             ______        ______ 
             100.00 %       95.22 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2(UO2)6O4(OH)6•8(H2O)
Help on Environment: Environment: Oxidation product of "pitchblende" in uranium deposits.
Help on IMA Status: IMA Status: Approved IMA 1964
Help on Locality: Locality: Margnac mine, Compreignac, Haute-Vienne, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: ICSD 86630
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