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Native Silver & Bornite

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CR655222

Native Silver & Bornite

Classic Locality

Description Tabs

Description
Locality: 
San Martin Mine, Sombrerete, Zacatecas, Mexico
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.8 × 1 cm
Description

A sheet of native silver, still embedded in minor of the shimmering, irridescent matrix of bornite! You can see the silver vein running through small parts of the bornite around , and the bornite has been trimmed away to expose the silver.

Very attractive and rich specimen.

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
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