Mineralogy Database

Uranophane Mineral Data

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General Uranophane Information

Help on Chemical  Formula: Chemical Formula: Ca(UO2)2SiO3(OH)2•5(H2O)
Help on Composition: Composition: Molecular Weight = 586.36 gm
   Calcium    6.84 %  Ca    9.56 % CaO
   Uranium   40.59 %  U    46.05 % UO2
   Silicon    9.58 %  Si   20.49 % SiO2
   Hydrogen   2.06 %  H    18.43 % H2O
   Oxygen    40.93 %  O
            ______        ______ 
            100.00 %       94.54 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaH2(SiO4)2(UO2)•5(H2O)
Help on Environment: Environment: Alteration product of gummite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1853
Help on Locality: Locality: Oberpfalz, Bavaria. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From uran and phanos - "to appear."
Help on Name Pronunciation: Name Pronunciation: Uranophane + Pronunciation Say URANOPHANE
Help on Synonym: Synonym: ICSD 63029
  PDF 39-1360
  Uranotile