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Selenium

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ESM512040

Selenium

Description Tabs

Description
Locality: 
Burnside, Northumberland County, Pennsylvania, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 1.7 × 0.7 cm
Description

Lustrous steel grey acicular selenium crystals

Mineral Data
What's on the rock

Selenium

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