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Tetrahedrite On Chalcopyrite & Quartz

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BMM726217

Tetrahedrite On Chalcopyrite & Quartz

Description Tabs

Description
Locality: 
Quiruvilca Mine, Quiruvilca District, Santiago de Chuco Province, Libertad Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4.8 × 1.7 cm
Description

This sample of Quiruvilca shows chalcopyrite on quartz in the highest quality. The chalcopyrite has golden shining with fine striped texture on the faces. As you can see on the photos, there are also black highly lustrous tetrahedrite crystals on the chalcopyrite. Not too big, but a very impressive specimen!

Mineral Data
What's on the rock

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

Quartz

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