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Native Silver With Bornite & Quartz

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PCZ118747

Native Silver With Bornite & Quartz

Description Tabs

Description
Locality: 
San Martín Mine, San Martín, Sombrerete Municipality, Zacatecas, Mexico
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1 cm
Description

A fascinating little silver specimen. A piece of bornite supports a number of silver wires which in turn are holding proud a crystal of bornite 0.4cm across. small quartz crystals are scattered allover the specimen. Very aesthetic.

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
Peter Crozier Minerals