Colemanite or is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. It has many industrial uses, like the manufacturing of heat resistant glass.
Weights:
Packaging Options:
Other weights and packaging options available on request.
| Compound | Typical (%) |
| CaO | 27.30% |
| B2O3 | 50.80% |
| LOI | 21.90% |
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