Mineralogy Database

Petscheckite Mineral Data

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General Petscheckite Information

Help on Chemical  Formula: Chemical Formula: U++++Fe++(Nb,Ta)2O8
Help on Composition: Composition: Molecular Weight = 651.70 gm
   Uranium   36.52 %  U    41.43 % UO2
   Tantalum  13.88 %  Ta   16.95 % Ta2O5
   Niobium   21.38 %  Nb   30.59 % Nb2O5
   Iron       8.57 %  Fe   11.02 % FeO
   Oxygen    19.64 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: UFe2+Nb1.5Ta0.5O8
Help on Environment: Environment: Petscheckite is hypothesized on theoretical grounds, having altered to oxypetscheckite and hydroxypetscheckite.
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Antsaoka I pegmatite, Berere district, Madagascar. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eckhard Petsch (1939-), of Idar-Oberstein, Germany, who was a noteworthy prospector in Madagascar.
Help on Name Pronunciation: Name Pronunciation: Petscheckite + Pronunciation Say PETSCHECKITE
Help on Synonym: Synonym: Hydroxypetscheckite
  Oxypetscheckite