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0 item @ $0.00  

Polybasite with Fluorite

#WR53532

Polybasite with Fluorite

#WR53532
Availability
Sold
Size
5.5 x 3 x 3 cm - Sm Cabinet 
Formula
Cu(Ag,Cu)6Ag9Sb2S11 (RRUFF)
Locality
Las Chispas mine, Arizpe, Sonora, Mexico
Tagged
sulfide , copper , silver

Great specimen from this highly sought after locality. The specimen contains several Polybasite crystals no less than 1cm. There are a few complete crystals showing the entire outline of the crystal. Other crystals show one to three edges. All are deeply striated, a characteristic Polybasite. The tint 1-2mm colorless balls are Fluorite.

Minerals Unlimited label - see prov. tab.

Polybasite

Formula
Cu(Ag,Cu)6Ag9Sb2S11 
Crystal System
Monoclinic 
Crystal Habit
Massive - Granular, Granular, Pseudo Hexagonal 
Cleavage
Poor, None, None 
Luster
Sub Metallic 
Color
black, dark ruby red 
Streak
reddish black 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Willard L. Roberts Collection

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