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Mineralpedia Details for Clausthalite

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Clausthalite

Clausthalite

Formula
PbSe 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Massive - Granular, Granular 
Cleavage
Perfect, Perfect, Perfect 
Luster
Metallic 
Color
lead gray, blue gray, grayish black 
Streak
grayish black 
Class
Isometric - Hexoctahedral 
Fracture
Brittle 
Hardness
2.5 
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Clausthalite from Lerbach, Harz, Lower Saxony, Germany

Clausthalite
            from Lerbach, Harz, Lower Saxony, Germany

Silvery masses embedded in matrix and the cylinder from microprobe.

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