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Smoky Quartz With Calcite & Pyrite

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MGR579716

Smoky Quartz With Calcite & Pyrite

Description Tabs

Description
Locality: 
Akchatau Mine, Akchatau, Shet, Karaganda Oblast, Kazakhstan
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 4.8 cm
Description

This is morion in pefect quality, ebony black and with mirror-like luster. Some razor sharp discs of snowy white calcite are attachted, minor sparkling pyrite is scattered over some faces. Great contrast, wonderful specimen! Lower backside was on the rock, no significant damages to report.

Mineral Data
What's on the rock

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0

Calcite

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5