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Colemanite

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PDM917618

Colemanite

Classic Locality

Description Tabs

Description
Locality: 
Death Valley, Inyo County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3.8 × 3.5 cm
Description

Aggregate of sharp translucent colemanite blades that form a nice cluster, complete all around (with the contact on the bottom), in very good condition.

A rich specimen from the collection of PhD Geologist Bob Janssens, #572.

Combine specimens to reduce shipping costs!.

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

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