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Cosalite Quartz & Pyrite

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SHS204946

Cosalite Quartz & Pyrite

Description Tabs

Description
Locality: 
Kara Oba, Karaganda Oblast, Kazakhstan
Size Range: 
Cabinet (10-18 cm)
Size: 
11.6 × 8 × 4 cm
Description

 Nice cosalite and pyrite inclusions in a large great quartz crystal.

Mineral Data
What's on the rock

Cosalite

Formula: 
Pb2Bi2S5
Strunz: 
2.JB.10
Hardness: 
2.5 - 3.0
Colour: 
Grey
Streak: 
Black
Type Locality: 
Cosalá Mine, Cosalá, Mun. de Cosalá, Sinaloa, Mexico

Quartz

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

Pyrite

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