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Colemanite

#64991
Colemanite from Boron, Kern Co., California, United States - 64991
Colemanite from Boron, Kern Co., California, United States - 64991

Colemanite

#64991
Availability
Available
Price
$35.00
Size
4.5 x 3.5 x 4 cm - Miniature 
Formula
CaB3O4(OH)3·H2O (RRUFF)
Locality
Boron, Kern Co., California, United States

Large pointed crystals of Colemanite from 4 to 15mm. Excellent specimen of this important boron ore mineral.

Colemanite

Formula
CaB3O4(OH)3·H2O 
Crystal System
Monoclinic 
Crystal Habit
Blocky, Crystalline - Coarse, Massive - Granular 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray, gray white, yellowish white, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
4.5 

Data courtesy of Webmineral.

Collection
Jungles Collection
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