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0 item @ $0.00  

Petzite with Gold

#RW48509

Petzite with Gold

#RW48509
Availability
Sold
Size
5 x 4 x 3 cm - Miniature 
Formula
Ag3AuTe2 (RRUFF)
Locality
Rex mine, Boulder Co., Colorado, United States
Tagged
tellurium , silver , gold

There is a 20 x 6mm cavity filled with a variety of minerals. It is hard to distinguish under the microscope, but the Petzite forms tiny, less than 1mm sectile cubo-octahedrons. But amongst these crystals are very nice, black and striated dark orange Sphalerite. At the green arrow is a plate of what appears to be Silver, but cold be Hessite. There is very little Gold on this specimen. It is a good locality piece.

Petzite

Formula
Ag3AuTe2 
Crystal System
Isometric 
Crystal Habit
Massive, Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
iron black, steel gray 
Streak
grayish black 
Class
Isometric - Gyroidal 
Fracture
Brittle - Sectile 
Hardness
2.5 

Data courtesy of Webmineral.

Collection
Robert J. Waidler Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Petzite
On Dakota Matrix
Other Available Petzite
WebMineral
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Mindat
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