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Clausthalite

#PD33728
SOLD
Clausthalite from Non-specified mine, Argentina - PD33728
Clausthalite from Non-specified mine, Argentina - PD33728

Clausthalite

#PD33728
Availability
Sold
Size
7 x 4 x 2.5 cm - Sm Cabinet 
Formula
PbSe (RRUFF)
Locality
Non-specified mine, Argentina

This is quite an interesting specimen that is labeled Clausthalite, which is an uncomon Selenium member of the Galena series. However, the specimens is entirely covered in post-mine secondary minerals that we're not entirely confident in sight identifying because of the ambiguous locale.

The black efflorescent crust is possibly Acanthite ore maybe even Selenium and the blue-green crust is possibly Chalcanthite, but those are really just educated guesses!

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 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Clausthalite
On Dakota Matrix
Other Available Clausthalite
WebMineral
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Mindat
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Other Sold

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