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Compreignacite

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HEF621457

Compreignacite

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Description
Locality: 
Les Marécottes, Le Trient Valley, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.3 × 0.6 cm
Description

Well formed crystals of the rare uranium bearing mineral compreignacite with uranophane crystals on matrix

Mineral Data
What's on the rock

Compreignacite

Formula: 
K2(UO2)6O4(OH)6·7H2O
Strunz: 
4.GB.05
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Margnac Mine, Compreignac, Haute-Vienne, Limousin, France

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