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Dolomite

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CR518456

Dolomite

Description Tabs

Description
Locality: 
Black Rock, Lawrence County, Arkansas, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.3 × 4 cm
Description

Lustrous, translucent, sharp, pretty pastel-pink dolomite rhombs totally cover this sculptural, undulating specimen from the well-known mines at Black Rock, Arkansas.

The peppering of chalcopyrite microcrystals is a nice and characteristic accent. Classic older material from this locale from the Fritz Haller collection

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