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Galena Calcite Sphalerite & Quartz

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Galena Calcite Sphalerite & Quartz

Description Tabs

Description
Locality: 
Gyudyurska Mine, Zlatograd, Smolyan Oblast, Bulgaria
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 2 cm
Description

Slightly etched,well-defined super lustrous crystals of galena are perched interconnected on calcite matrix.On them grow quartz points with one textbook tetrahedron of sphalerite with a few pyrite crystals.All species to their best!No damage.

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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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