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0 item @ $0.00  

Miargyrite

#58544

Miargyrite

#58544
Availability
Sold
Size
5.5 x 5 x 4.5 cm - Sm Cabinet 
Formula
AgSbS2 (RRUFF)
Locality
Kelly mine, Randsburg dist., San Bernardino Co., California, United States
Tagged
sulfide , silver

I recently sold a portion of a much larger chunk from which this specimen was derived. I broke the mass into smaller specimens and discovered actual crystals of Miargyite inside. The crystals measure from 1 to 2mm and have an absolutely brilliant metallic luster with striations. The are hard to see in the photos.

Miargyrite

Formula
AgSbS2 
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Disseminated, Massive 
Cleavage
Imperfect, None, None 
Luster
Sub Metallic 
Color
steel gray, lead gray, blackish red, reddish gray 
Streak
cherry red 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2-2.5 

Data courtesy of Webmineral.

Collection
Ex. Cal Tech

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