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Native Silver & Bornite

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CR703826

Native Silver & Bornite

Classic Locality

Description Tabs

Description
Locality: 
San Martín Mine, San Martín, Sombrerete Municipality, Zacatecas, Mexico
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
16 × 10 × 2 cm
Weight: 
205.00gr
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 the bornite around the edge of the matrix, and the bornite has been trimmed away to expose the silver.

Very attractive and large 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