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Chalcopyrite & Quartz

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BMM957221

Chalcopyrite & Quartz

Description Tabs

Description
Locality: 
Borieva Mine, Madan, Smolyan Oblast, Bulgaria
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.3 × 3.1 cm
Description

Two single larger chalcopyrite crystals sit cheekily between whitish shiny quartz crystals. The chalcopyrites show a silky luster with a dark golden color with beautiful metallic iridescent colors of red, blue and violet.

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