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Chalcopyrite & Quartz

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ATM1073029

Chalcopyrite & Quartz

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Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 4.07 × 2.7 cm
Largest Crystal: 
2.10cm
Description

Exquisite specimen of slender Quartz with Chalcopyrite on Sphalerite matrix.  No damage apart from two nicks on two crystals termination which does not detract from specimen.

Ex my personal collection.  L2786

Mineral Data
What's on the rock

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

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