mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Petzite with Gold

#64539

Petzite with Gold

#64539
Availability
Sold
Size
2.1 x 2 x 1.2 cm - Thumbnail 
Formula
Ag3AuTe2 (RRUFF)
Locality
Cornucopia mine, Baker Co., Oregon, United States
Tagged
tellurium , silver

The old hand-written label claims that there is Gold in this specimen. I really don't agree with that unless it is super small. It is cut and polished on one side, which may have brought out the allusion of Gold. I think it is just Pyrite as it is brittle and much harder than Gold. The rest of the specimen is indeed composed of dark black and sectile Petzite.

Antique Specimen

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
Ex. A.E. Seaman Museum
Special Info
Antique Specimen
Mineralpedia
View Petzite
On Dakota Matrix
Previously Sold Petzite
On Dakota Matrix
Other Available Petzite
WebMineral
View Petzite
Mindat
View Petzite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2025 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map