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Uraninite & Clausthalite

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SHS41316

Uraninite & Clausthalite

Description Tabs

Description
Locality: 
Předbořice, Kovářov, Písek District, South Bohemian Region, Czech Republic
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.1 × 1.6 cm
Description

Clausthalite with black uraninite balls on matrix

Mineral Data
What's on the rock

Uraninite

Formula: 
UO2
Strunz: 
4.DL.05
Crystal System: 
Isometric
Hardness: 
5.0 - 6.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Clausthalite

Formula: 
PbSe
Strunz: 
2.CD.10
Hardness: 
2.5 - 3.0
Type Locality: 
St Lorenz Mine, Burgstatt veins, Clausthal-Zellerfeld, Harz, Lower Saxony, Germany