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Pyrargyrite Proustite Stephanite & Chalcopyrite

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CLB527351

Pyrargyrite Proustite Stephanite & Chalcopyrite

Classic Locality

Description Tabs

Description
Locality: 
Casapalca Mine, Huarochiri Province, Lima Department, Peru
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 3.4 × 1.2 cm
Description

Dozens of deep red proustite, cherry red pyrargyrite prisms, lead gray stephanite crystals and small golden chalcopyrite crystals on this extraordinary specimen. 

Longest pyrargyrite crystal about 0.4 cm.

Mineral Data
What's on the rock

Pyrargyrite

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

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5

Stephanite

Formula: 
Ag5SbS4
Strunz: 
2.GB.10
Crystal System: 
Orthorhombic - Pyramidal
Hardness: 
2.0 - 2.5
Type Locality: 
Freiberg District, Erzgebirge, Saxony, Germany

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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