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Galena & Sphalerite On Quartz

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KSC81194

Galena & Sphalerite On Quartz

Description Tabs

Description
Locality: 
Gyudyurska Mine, Zlatograd, Smolyan Oblast, Bulgaria
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 2.5 cm
Description

Perfect pseudo cubic crystals of galena on quartz crust with a few micro sphalerite crystals.One minor galena crystal is cleaved on the back-probably a contact.

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

Quartz

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

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