Colemanite | Borontradeasia
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Colemanite

Colemanite Colemanite
IUPAC Name
HS Code
25280090
Formula
B6O11Ca2.5H2O
Appearance
-
Cas No.
1318-33-8
Common Names
Colemanite
Packaging
- 25 kg bags
Category
  • Boron
Sub Category
  • boron

Colemanite or hydrated calcium borate (Ca2B6O11.5H2O) is a colorless or white monoclinic crystal which formed by the evaporation  of deposits together with other borates. Colemanite is a secondary mineral which derived from borax and ulexite. Colemanite is a common natural source of insoluble boron and also one of the more stable borate mineral. 

Production process:

Colemanite is enriched via crushing, wetting in water, washing in a thumbling, sieving, triage and classification. Colemanite forms at a lower pH and warmer temperature than other borates.

Application:

Colemanite is a significant ore of boron and was the most impoertant ore prior to the discovery of Kernita in 1926.

  • Non-sodium fiberglass industry

Colemanite is used in nonsodium fiberglass industry to make heat resistant glass

  • Pharmaceutical and cosmetics industry
  • Cleaning agent