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Crookesite

#KR61956
SOLD
Crookesite from Bukov mine, Rožná deposit, Vysočina, Moravia, Czech Republic - KR61956
Crookesite from Bukov mine, Rožná deposit, Vysočina, Moravia, Czech Republic - KR61956

Crookesite

#KR61956
Availability
Sold
Size
4 x 3 x 3.8 cm - Miniature 
Formula
Cu7TlSe4 (RRUFF)
Locality
Bukov mine, Rožná deposit, Vysočina, Moravia, Czech Republic
Tagged
copper , selenium

Metallic blue-grey crystal grains throughout mass. Ex. Pequa Rare Minerals.

Crookesite

Formula
Cu7TlSe4 
Crystal System
Tetragonal 
Crystal Habit
Disseminated 
Cleavage
Good, None, None 
Luster
Metallic 
Color
blue gray, brown pink, gray 
Class
Tetragonal - Disphenoidal 
Fracture
Brittle 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Kenneth Raabe Collection
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