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Acanthite with Fluorite

#RW50565
SOLD
Acanthite from Santa Eulalia, Chihuahua, Mexico - RW50565
Acanthite from Santa Eulalia, Chihuahua, Mexico - RW50565

Acanthite with Fluorite

#RW50565
Availability
Sold
Size
10 x 5.5 x 4 cm - Cabinet 
Formula
Ag2S (RRUFF)
Locality
Santa Eulalia, Chihuahua, Mexico
Tagged
sulfide , silver

Rich specimen with a great amount of Acanthite as oddly shaped crystals, mostly modified cubic forms. It is also rich in yellowish Fluorite. Some of the cubes you can see in the photos are actually the Fluorite coated with Acanthite.

Acanthite

Formula
Ag2S 
Crystal System
Monoclinic 
Crystal Habit
Blocky, Skeletal, Arborescent 
Cleavage
poor to none 
Luster
Metallic 
Color
lead gray, gray, iron black 
Streak
shining black 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
2-2.5 

Data courtesy of Webmineral.

Collection
Robert J. Waidler Collection
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