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Dolomite Psm Aragonite

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RBR106519

Dolomite Psm Aragonite

Description Tabs

Description
Locality: 
Roswell, New Mexico, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 7.5 × 3.5 cm
Description

Very rare material from a recent find in spring 2011. The specimen is developed as floater and undamaged. You still can see the habit of the aragonite, but it is completely converted to dolomite. Only one box of this stuff made it to Europe and some of them moved very quickly to the Freiberg-Museum. This is the only specimen I still have on sale.

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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