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Native Selenium

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CAM157407

Native Selenium

Anthroprogenic

Description Tabs

Description
Locality: 
Anna Mine, Alsdorf, Cologne, North Rhine - Westphalia, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.2 × 2 cm
Description

A very rich coverage of tiny, black metallic, very lustrous, prismatic native selenium crystals on matrix. From the burning dump of the Anna coalmine in Alsdorf near Aachen.
Excellent sample.

Mineral Data
What's on the rock

Selenium

Formula: 
Se
Strunz: 
1.CC.10
Crystal System: 
Trigonal
Hardness: 
2.0
Streak: 
red
Cartils Minerals

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