Uranocircite
References
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| Uranocircite |
|---|
 Uranocircite
|
| General |
|---|
| Category |
Phosphate mineral |
Formula
.mw-parser-output .nobold{font-weight:normal}
(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 |
|---|
| References |
[1][2]
|
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
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