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Skutterudite

#48429

Skutterudite

#48429
Availability
Sold
Size
12 x 9 x 5 cm - Cabinet 
Formula
CoAs3-x (RRUFF)
Locality
Hesse, Germany

This is an older specimen from the Charles Noll collection. It is a cabinet size specimen with good coverage of silvery 7mm crystals. All of the crystals are distinct and well-formed showing excellent crystal faces in the many vugs. Specimens of Skutterudite from this historic district are very hard to come by and certainly rare on the market. Most pieces are forever held by museums and private collectors.

Skutterudite

Formula
CoAs3-x 
Crystal System
Isometric 
Crystal Habit
Granular, Colloform, Massive 
Cleavage
Distinct, Distinct, None 
Luster
Metallic 
Color
white, light steel gray 
Streak
black 
Class
Isometric - Diploidal 
Fracture
Brittle 
Hardness
5.5-6 

Data courtesy of Webmineral.

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