Category Phosphate mineral Strunz classification 8.EB.05 Space group I4/mmm | Formula
(repeating unit) Ba(UO2)2(PO4)2·10H2O Crystal system Tetragonal | |
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Crystal class Ditetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m) | ||
Uranocircite or Uranocircite-II is a uranium mineral with the chemical formula: Ba(UO2)2(PO4)2·10H2O. Uranocircite-I was discredited (the IMA-CMNMC published 'The New IMA List of Minerals', September 2012). It is a phosphate mineral which contains barium and is a green to yellow colour. It has a Mohs hardness of about 2.
Uranocircite was named after the Greek for "falcon" because it was discovered in Falkenstein, Germany. Uranocircite contains about 45% uranium in it and is mainly mined in Bergen in Saxony, Germany.
References
Uranocircite Wikipedia(Text) CC BY-SA