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Olsacherite & Naumannite

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JYJ801038

Olsacherite & Naumannite

Description Tabs

Description
Locality: 
Virgen de Surumi Mine, Pakajake Canyon, Chayanta Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.3 cm
Description

White olsacherite associated with anglesite in limonitic matrix. The selenides are naumanite (large areas), penroseite and clausthalite. 

 

Mineral Data
What's on the rock

Olsacherite

Formula: 
Pb2(SeO4)(SO4)
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Type Locality: 
Virgen de Surumi mine (Pacajake mine; Pakajake mine), Pakajake Canyon (Pacajake Canyon), Chayanta Province, Potosí Department, Bolivia

Naumannite

Formula: 
Ag2Se
Strunz: 
2.BA.55
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
black
Type Locality: 
Tilkerode (Abberode), Harz, Saxony-Anhalt, Germany