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0 item @ $0.00  

Acanthite with Pearceite(?) & Sphalerite

#PD31815

Acanthite with Pearceite(?) & Sphalerite

#PD31815
Availability
Sold
Size
3.5 x 2.5 x 1.5 cm - Miniature 
Formula
Ag2S (RRUFF)
Locality
Anselmo mine, Butte, Silver Bow Co., Montana, United States
Tagged
sulfide

This is a fantastic little specimen packed with micro crystals of the said minerals plus some other sulfides. The Acanthite exhibits a melted look of blebs of dull grey crystals. Pearceite is very possible as seen in the photo near the green arrow. The surprise was the gemmy, beautiful crystals of green Sphalerite to 2mm. The matrix is mostly Galena and Quartz. The old label states that it was mined at the 1200 foot level.

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
Phillips 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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