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Pyrargyrite

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WND790296

Pyrargyrite

Classic Locality

Description Tabs

Description
Locality: 
Proano Mine, Fresnillo, Fresnillo Municipality, Zacatecas, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 3 × 1.8 cm
Description

You are looking at a fine specimen of well developed and multifaced crystals of pyrargyrite on matrix. They are highly lustrous and the prism faces are showing a clear vertical striation. During the description of this fine specimen, I recognized with my microscope some metallic tetrahedrons on the surface of the pyrargyrite,- probably tetrahedrite, but this species is not listed at mindat for that locality.

Mineral Data
What's on the rock

Pyrargyrite

Formula: 
Ag3SbS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal - Ditrigonal Pyramidal
Hardness: 
2.5
Wendel Minerals

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