Colemanite Mining
Colemanite
Description
Colemanite is a hydrated calcium borate, an altered variation of borax. Over 200 minerals contain boron, but colemanite is one of only a few which is commercially important. It contains 50% B2O3. It forms at a lower pH and warmer temperature than other borates including ulexite.
| Type | Crystal System |
| Mineral | Monoclinic |
| Mineral Classification | Color |
| Inoborates | White, clear, colorless, gray |
| Chemical Formula | Luster |
| CaB3O4(OH)3·H2O | Vitreous |
| Streak | Fracture |
| White | Conchoidal |
| Mohs Hardness | |
| 4.5 |
Uses
See Boron