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Colemanite

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JYJ74390

Colemanite

ex. Hauser collection

Description Tabs

Description
Locality: 
Death Valley, Inyo County, California, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 5.5 × 5 cm
Largest Crystal: 
5.00cm
Description

Lustrous Colemanite crystals up to 5 cm from Death Valley. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. Large shiny and sharp crystals.

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