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Tetrahedrite Sphalerite Galena & Quartz

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AST167450

Tetrahedrite Sphalerite Galena & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Madem-Lakko Mine, Cassandra Mines, Aristotelis, Chalkidiki, Central Macedonia, Greece
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.5 × 3 cm
Description

Intergrown very fine lead gray tetraedrite crystals in cavity with lustrus black sphalerite crystals and quartz on a massive "melted" galena "matrix".Crystals also at the back of the specimen.A classic from this now inactive mine and very hard to get combination.

Mineral Data
What's on the rock

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0

Sphalerite

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

Galena

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

Quartz

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

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