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Calcite & Dolomite

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MGR745923

Calcite & Dolomite

Description Tabs

Description
Locality: 
Black Rock, Lawrence County, Arkansas, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.9 × 2.2 cm
Description

A sharp termianted light ivory colored ad glossy calcite perched on light pink well shaped dolomite crystals. Typical for the locality, very aesthetc assemble!

Mineral Data
What's on the rock

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