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Uranotungstite

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JYJ751403

Uranotungstite

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.6 × 1.6 cm
Description

Greenish-yellow uranotungstite in purple fluorite matrix. 

From analysed material. Recent investigation has shown, that uranotungstite can be Fe, Pb and Ba poor and the charge might be compensated by other cations (K?!). The superimposable Raman spectra confirm the structural relationship. 

 

Mineral Data
What's on the rock

Uranotungstite

Formula: 
(Fe2+,Ba,Pb)(UO2)2(WO4)(OH)4·12H2O
Strunz: 
7.HB.25
Crystal System: 
Orthorhombic
Hardness: 
2.0
Type Locality: 
Krunkelbach Valley Uranium deposit, Menzenschwand, Black Forest, Baden-Württemberg, Germany