Ulexite
Ulexite is a mineral with the chemical formula NaCaB5O6(OH)·5H2O. It has a Mohs hardness of 2.5 and silky to vitreous luster.
Ulexite properties
| Type | Mineral |
|---|---|
| Chemical formula | NaCaB5O6(OH)·5H2O |
| Mohs hardness | 2.5 |
| Luster | Silky to vitreous |
| Typical colors | White, colorless, sometimes pale yellow or green |
| Formation | Forms as a secondary mineral in borax deposits, often in arid environments |
| Rarity | 6 / 10 |
Mohs hardness 2.5 — very soft
1 · Talc5 · Apatite10 · Diamond
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