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  

Argyrodite with Pyrargyrite & Sphalerite

#50352

Argyrodite with Pyrargyrite & Sphalerite

#50352
Availability
Sold
Size
9 x 9 x 3.5 cm - Sm Cabinet 
Formula
Ag8GeS6 (RRUFF)
Locality
Santiago Alto mine, Porco, Antonio Quijarro prov., Potosi, Bolivia
Tagged
sulfide , silver

Pretty much a massive specimen with 2cm vugs lined with micro crystals less than 0.2mm. The Argyrodite takes up about 65 percent of the specimen and is black. In the vugs are wire Silver, which looks replaced by the Argyrodite in crystal form. The Pyrargyrite is a dark blackish red and is also massive and no crytsals. The Sphalerite occurs as dark red veins 7mm thick. 

Formerly in the Dr. Werner Paar collection.

Argyrodite

Formula
Ag8GeS6 
Crystal System
Orthorhombic 
Crystal Habit
Subhedral Crystals, Massive - Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
black, steel gray 
Streak
grayish black 
Class
Orthorhombic - Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
2.5 

Data courtesy of Webmineral.

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2020 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map