Uranocircite

Uranocircite
Uranocircite
	Uranocircite
General
Category	Phosphate mineral
Formula; (repeating unit)	Ba(UO2)2(PO4)2·10H2O
Strunz classification	8.EB.05
Crystal system	Tetragonal
Crystal class	Ditetragonal dipyramidal (4/mmm) ; H-M symbol: (4/m 2/m 2/m)
Space group	I4/mmm
Unit cell	a = 7.01, c = 20.46 [Å]; Z = 2
Identification
Other characteristics	Radioactive
References

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

^ http://www.mindat.org/min-4105.html Mindat
^ https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Uranocircite-II Mineralienatlas

Webmineral data

This article about a specific phosphate mineral is a stub. You can help Wikipedia by expanding it.

[1] ttp://www.mindat.org/min-4105.html Mindat

[2] ttps://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Uranocircite-II Mineralienatlas

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