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Native Selenium

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FDW65220

Native Selenium

Rare Mineral

Description Tabs

Description
Locality: 
Anna Mine, Alsdorf, Cologne, North Rhine - Westphalia, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 2.2 × 1.3 cm
Largest Crystal: 
0.15cm
Description

Almost exclusively found on burning coaldumps, this specimen carries dozens of crystals and groups of crystals, up to 1.5 mm. (crystal size 0.5 mm to 1.5 mm).

(AN035)

Mineral Data
What's on the rock

Selenium

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