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Quartz Dolomite Sphalerite

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PFK856195

Quartz Dolomite Sphalerite

Classic Locality

Description Tabs

Description
Locality: 
Madem-Lakko Mine, Cassandra Mines, Aristotelis, Chalkidiki, Central Macedonia, Greece
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 7.8 × 5.6 cm
Description

Interesting and unusual old, rare specimen from this closed Greek mine. Quartz crystals with dolomite after calcite and contrasting groups of black, lustrous little crystals of sphalerite!

Mineral Data
What's on the rock

Quartz

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Sphalerite

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

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