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0 item @ $0.00  

Sylvanite with Fluorite

#49709

Sylvanite with Fluorite

#49709
Availability
Sold
Size
7 x 4 x 3 cm - Sm Cabinet 
Formula
AgAuTe4 (RRUFF)
Locality
Spotted Horse mine, Fergus Co., Montana, United States
Tagged
tellurium , silver , gold

At least three crystal blades of Sylvanite to 3mm. They are not readily apparent but can be seen when the specimen is tilted at the right angles to see a goldish flash. A difficult locality to obtain.

Sylvanite

Formula
AgAuTe4 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Skeletal, Platy 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
yellowish silver white, white 
Streak
steel gray 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
1.5-2 

Data courtesy of Webmineral.

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