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Colemanite With Aragonite

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SHS65342

Colemanite With Aragonite

Description Tabs

Description
Locality: 
Boron, Kern County, California, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 3.3 × 4.9 cm
Description

Aragonite crystals on colemanite

Mineral Data
What's on the rock

Colemanite

Formula: 
Ca[B3O4(OH)3]·H2O
Strunz: 
6.CB.10
Hardness: 
4.5
Type Locality: 
Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA

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