Colemanite 0.82 ct.
Colemanite 0.82 ct.

Colemanite 0.82 ct.

#5980
€60.00
Colemanite 0.82 ct.

 

Colemanite

Is a Hydrated Calcium Borate Hydroxide with formula: CaB3O4(OH)3-H2O,

An ore of Boron or Borax found in the largest open pit located at the border of Kern and S. Bernardino county in the Mojave desert, California.

The hardness is 4.5, crystal are often cloudy and full of growing stress, therefore a flawless gem is a great rarity, rarely offered as a cut gem.

Another collector’s stone!

Size: 7.1x5.8x3.9 mm.

Weight: 0.82 ct.

CODE#5980

Origin
California
New

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