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Silver & Bornite

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NST658878

Silver & Bornite

Description Tabs

Description
Locality: 
San Martín Mine, San Martín, Sombrerete Municipality, Zacatecas, Mexico
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.1 × 0.4 cm
Description

A sample of blue-purple, metallic Bornite on a sheet of Native Silver from San Martin Mine.

Mineral Data
What's on the rock

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Bornite

Formula: 
Cu5FeS4
Strunz: 
2.BA.15
Crystal System: 
Tetragonal
Hardness: 
3.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic