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Pyrargyrite With Calcite

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NST621280

Pyrargyrite With Calcite

Classic Locality

Description Tabs

Description
Locality: 
Mexico
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 3.5 × 3.5 cm
Description

A mexican oldtimer with red proustite/pyrargyrite on calcitic matrix. Comes with a handwritten late 19th century label.

Mineral Data
What's on the rock

Pyrargyrite

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White