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Native Selenium

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JYJ738965

Native Selenium

Description Tabs

Description
Locality: 
Anna Mine, Alsdorf, Cologne, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
1.3 × 0.8 × 8 cm
Description

Dark grey native selenium crystals from on old find at the Anna mine, a burning coal dump. 

Rich sample!

Mineral Data
What's on the rock

Selenium

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