Mineralogy Database

Pseudo-autunite Mineral Data

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General Pseudo-autunite Information

Help on Chemical  Formula: Chemical Formula: (H3O)4Ca2(UO2)2(PO4)4•5(H2O) (?)
Help on Composition: Composition: Molecular Weight = 1,166.27 gm
   Calcium      6.87 %  Ca    9.62 % CaO
   Uranium     40.82 %  U    46.31 % UO2
   Phosphorus  10.62 %  P    24.34 % P2O5
   Hydrogen     1.90 %  H    16.99 % H2O
   Oxygen      39.78 %  O
              ______        ______ 
              100.00 %       97.26 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (H3O)4Ca2(UO2)2(PO4)4•5(H2O)
Help on Environment: Environment: Fissures and cavities of albite-acmite veins in the contact zone of ultrabasic-alkalic rocks.
Help on IMA Status: IMA Status: Not Approved IMA 1968
Help on Locality: Locality: Northern Karelia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its similarity to autunite and meta-autunite in composition and occurrence.
Help on Synonym: Synonym: Discredited