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0 item @ $0.00  

Acanthite with silfides

#46308

Acanthite with silfides

#46308
Availability
Sold
Size
10 x 6 x 5 cm - Cabinet 
Formula
Ag2S (RRUFF)
Locality
Greens Creek, Admiralty dist., Juneau Borough, Alaska
Tagged
sulfide , silver

1 lb 10 oz one side is mostly Acanthite the remaining is mixed sulfides. Acanthite is one of the most important epithermal minerals of silver. Acanthite was a major ore component at the Comstock Lode in Nevada, also in Creede, Colorado and Fresnillo, Mexico. 

The Greens Creek mine is one the largest producing primary silver mines in the world. The massive sulfide deposit was discovered in 1973 and began operations in 1989. In 2015 it produced 8.3 million ounces of silver.

Acanthite

Formula
Ag2
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
Chris van Laer Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Acanthite
On Dakota Matrix
Other Available Acanthite
WebMineral
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Mindat
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