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Polybasite Psm Pyrargyrite

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SHS101550

Polybasite Psm Pyrargyrite

Description Tabs

Description
Locality: 
Guanajuato, Guanajuato Municipality, Guanajuato, Mexico
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 3.2 cm
Description

Great classic piece with pseudomorphose polybasite after pyrargyrite on matrix

Mineral Data
What's on the rock

Polybasite

Formula: 
[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.5 - 3.0
Streak: 
black

Pyrargyrite

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