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Galena Sphalerite & Chalcopyrite

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MGR744944

Galena Sphalerite & Chalcopyrite

Description Tabs

Description
Locality: 
Madan, Smolyan Oblast, Bulgaria
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 5.9 × 4.6 cm
Description

A very eye-catching combination: yet-black sphalerite, grey metallic galena with modified habit and intense golden chalkopyrite. All these minerals are highly lustrous. Hard to photograph, but much better in person!

Mineral Data
What's on the rock

Galena

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Chalcopyrite

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