Ulexite
Realgar, Ulexite
Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Item-No.: MINS2110
Price: 7.00 EUR
Ulexite
Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Item-No.: MIN4005
Price: 55.00 EUR
| Synonyms: | Boronatro-calcite, Cotton-ball Borax, Franklandite, Hayesite, Natroborocalcite, Natronboroncalcite, Raphite, Stiberite, TV stone |
| Classification: | Borates |
| Chemical formula: | NaCa[B5O6(OH)6] · 5H2O |
| Crystal system: | Triclinic |
| Density (g/cm3): | 1,955 measured and calculated |
| Tenacity: | Brittle |
| Cleavage: | Perfect on {010}, good on {110}, poor on {110} |
| Fracture: | Irregular/uneven |
| Hardness (Mohs): | 2,5 |
| Colour: | Colourless, white, grey |
| Lustre: | Vitreous, silky |
| Streak: | White |
| Type locality: | Iquique Province, Tarapacá Region, Chile |
| Application: | One of the main source for boron, chemical industry, gemstone |