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0 item @ $0.00  

Crookesite

#KR61957

Crookesite

#KR61957
Availability
Sold
Size
3 x 1.8 x 1.9 cm - Thumbnail 
Formula
Cu7TlSe4 (RRUFF)
Locality
Skrikerum mine, Valdemarsvik, Östergötland, Sweden
Tagged
copper , selenium

Indiscernible black masses with Calcite.

Type Locality

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
Special Info
Type Locality

Other Sold

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