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Chalcopyrite Pyrite & Galena

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MGR749673

Chalcopyrite Pyrite & Galena

Description Tabs

Description
Locality: 
Madan, Smolyan Oblast, Bulgaria
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.5 × 2.6 cm
Description

An exposed, complete crystal of chalcopyrite attractively set on galena matrix. Minor pyrite is also present. The chalkopyrite shows an intense color and great contrast to matrix. The tri-dimensional assemble is very aesthetic and much better in person.

Mineral Data
What's on the rock

Chalcopyrite

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Galena

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