Mineralogy Database

Chadwickite Mineral Data

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General Chadwickite Information

Help on Chemical Formula: Chemical Formula: (UO2)H(AsO3)
Help on Composition: Composition: Molecular Weight = 393.96 gm
   Uranium   60.42 %  U    68.54 % UO2
   Arsenic   19.02 %  As   25.11 % As2O3
   Hydrogen   0.26 %  H     2.29 % H2O
   Oxygen    20.31 %  O
            ______        ______ 
            100.00 %       95.94 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (UO2)H(AsO3)
Help on Environment: Environment: From granite in dump material at the Sophia mine, central Black Forest.
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: Wittichen in the Black Forest, Aufschluss, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Sir James Chadwick (1891-1974), English physicist Cavendish Laboratory, University of Cambridge, U.K. 1935 Nobel Prize winner for his discovery of the neutron.
Help on Synonym: Synonym: ICSD 266
  IMA1997-005
  PDF 34-1170