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Dolomite Psm Aragonite

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CLB582804

Dolomite Psm Aragonite

Pseudomorph

Description Tabs

Description
Locality: 
Lovell, Big Horn County, Wyoming, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.3 × 1.5 cm
Description

Nice crystal group/foater of intergrown (twinned?) aragonite crystals, replaced by dolomite. New at e-rocks! Very unusual find.

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

Aragonite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.15
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Type Locality: 
Gallo river, Molina de Aragón, Guadalajara, Castile-La Mancha, Spain

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