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Pyrostilpnite with Pyrargyrite

#45422

Pyrostilpnite with Pyrargyrite

#45422
Availability
Sold
Size
5.5 x 2.5 x 2.5 cm - Sm Cabinet 
Formula
Ag3SbS3 (RRUFF)
Locality
Bulldog mine, Creede dist., Mineral Co., Colorado, United States
Tagged
sulfide , silver

Very rare long needle Pyrostilpnite to 1mm. There are several crystals, although the one photographed is the best and easiest to locate on the specimen. Within the same vug there is another, about as long and several much smaller along with probably Polybasite. The red crystals and grains in the photos are Pyrargyrite.

Pyrostilpnite

Formula
Ag3SbS3 
Crystal System
Monoclinic 
Crystal Habit
Acicular, Crystalline - Fine 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
hyacinth red, orange red 
Streak
orange yellow 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection

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