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Galena & Chalcopyrite

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KSC132874

Galena & Chalcopyrite

Description Tabs

Description
Locality: 
Gyudyurska Mine, Zlatograd, Smolyan Oblast, Bulgaria
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.5 × 3.5 cm
Largest Crystal: 
2.00cm
Description

Very high quality specimen of super sharp,textbook clean and lustrous galena crystals,some of which are twinned and some show stepped faces.The middle crystal is the largest at 2 cm and has an enhydron,or liquid inclusion,of 1 cm,which is huge for the crystal size!And,there are two chalcopyrite crystals,one twinned,epitaxial to galena crystals-a very rare phaenomenon for the given two species!In very good condition!

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

Chalcopyrite

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

Seller Information

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