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Dewindtite & Torbernite

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BCK660128

Dewindtite & Torbernite

Kay Robertson collection
Rare Mineral

Description Tabs

Description
Locality: 
Les Bains, Saint-Georges-les-Bains, Ardèche, Auvergne-Rhône-Alpes, France
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.6 × 1.8 cm
Description

You are bidding on an exceptional small miniature with very rich and quite large yellow blades of renardite (label states renardite, but it is possible that these are dewindtite, or possibly phosphuranylite; analysis has not been performed.) in many groups on matrix with tabular torbernite crystals. Extremely rich and photogenic specimen! Kay Robertson collection and label. 

Mineral Data
What's on the rock

Dewindtite

Formula: 
H2Pb3(UO2)2(PO4)4O4·12H2O
Strunz: 
8.EC.10
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Torbernite

Formula: 
Cu(UO2)2(PO4)2·12H2O
Strunz: 
8.EB.05
Crystal System: 
Tetragonal
Hardness: 
2.0 - 2.5
Type Locality: 
Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany

Seller Information

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