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Dolomite & Calcite

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MGR780852

Dolomite & Calcite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 4.3 × 3.2 cm
Description

A well shaped hemisphere od tiny light beige dolomite crystals with some exposed small dark brown calcites on it. There is a further nice detail: between the dolomites and also at the base of the specimen you can find hairy crystal of stibnite. No significant damages to report, back-side was on the rock.

Mineral Data
What's on the rock

Dolomite

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

Calcite

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