What is "uranocircite"

n. (context mineralogy English) A tetragonal-ditetragonal dipyramidal mineral containing barium, hydrogen, oxygen, phosphorus, and uranium.

Uranocircite or Uranocircite-II is a uranium mineral with the chemical formula: Ba(UO)(PO)·10HO. 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.