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Quartz Calcite Dolomite Pyrite & Galena

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MGR146609

Quartz Calcite Dolomite Pyrite & Galena

Description Tabs

Description
Locality: 
Dalnegorsk, Primorskiy Kray, Russian Federation
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.2 × 7.6 × 6.7 cm
Description

large calcite crystals on left and right side of the specimen. The calcite is covered with beige dolomite. Tiny pyrite and galena crystals are scattered all over the specimen. Set in the center a star-like assemble of milky quartz with satiny lustre. more impressive in person, undamaged.

Mineral Data
What's on the rock

Quartz

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

Calcite

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

Dolomite

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

Pyrite

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

Galena

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