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2 items @ $85.00  

Polybasite

#61824

Polybasite

#61824
Availability
Sold
Size
Micromount 
Formula
Cu(Ag,Cu)6Ag9Sb2S11 (RRUFF)
Locality
Las Chispas mine, Arizpe, Sonora, Mexico
Tagged
sulfide , copper , silver

There are numerous, less than 1mm, silvery striated crystals on this matrix 2 x 1.5cm.

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.

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