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Quartz Galena & Chalcopyrite On Matrix

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BGM217012

Quartz Galena & Chalcopyrite On Matrix

Description Tabs

Description
Locality: 
Deveti Septemvri Mine, Smolyan Oblast, Bulgaria
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 2 cm
Description

Group of very lustrous galena crystals with some skeletal growth. The addition of quartz and chalcopyrites adds to the beauty of this specimen. Weight: 57 grams.

Mineral Data
What's on the rock

Quartz

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

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Chalcopyrite

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

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