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Ullmannite

#57510
SOLD
Ullmannite from Masaloni mine, San Vito, Sardinia, Italy - 57510
Ullmannite from Masaloni mine, San Vito, Sardinia, Italy - 57510

Ullmannite

#57510
Availability
Sold
Size
1.5 x 1 x 1 cm - Thumbnail 
Formula
NiSbS (RRUFF)
Locality
Masaloni mine, San Vito, Sardinia, Italy
Tagged
sulfide , nickel

Small specimen but packed with 1-2mm silvery crystals. Ullmannite is a member of the Cobaltite group and contains nickel.

Ullmannite

Formula
NiSbS 
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Massive 
Cleavage
Good, Good, Good 
Luster
Metallic 
Color
steel gray, silver white, tin white 
Streak
grayish black 
Class
Isometric - Tetartoidal 
Fracture
Brittle 
Hardness
5.5 

Data courtesy of Webmineral.

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