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0 item @ $0.00  

Polydymite in Calcite

#58767

Polydymite in Calcite

#58767
Availability
Sold
Size
11 x 4.5 x 6 cm - Cabinet 
Formula
Ni3S4 (RRUFF)
Locality
Gray Quarry, Hamilton, Hancock Co., Illinois, United States
Tagged
nickel

Complex, very nice, Calcite crystals with inclusions of needle-like Polydymite.

Polydymite

Formula
Ni3S4 
Crystal System
Isometric 
Crystal Habit
Twinning Common, Massive - Granular, Octahedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
violet gray, copper red, light gray, steel gray 
Streak
black gray 
Class
Isometric - Hexoctahedral 
Fracture
Conchoidal - Uneven 
Hardness
4.5-5.5 

Data courtesy of Webmineral.

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