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Naumannite

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JYJ618998

Naumannite

Description Tabs

Description
Locality: 
Virgen de Surumi Mine, Pakajake Canyon, Chayanta Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 2.7 × 2.5 cm
Description

Bright grey metallic naumannite & clausthalite crystals on siderite. 

References: Petrov, A., Smith, B., Smith, C. (2001) A Guide to Mineral Localities in Bolivia. Mineralogical Record Vol.32(6), pp. 457-482.
 

 

Mineral Data
What's on the rock

Naumannite

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