Birimba, №321, B.P40 Rumonge Burundi
Welcome To Société Coopérative Minérales Mutabazi
-
Burundi
| Chemical Formula | NaAlSi2O6 |
| Color | Green, white, yellow, lavender, black, and more |
| Hardness | 6.5 – 7 on the Mohs scale |
| Density | 3.30 – 3.38 g/cm³ |
| Refractive Index | 1.66 – 1.68 |
| Transparency | Translucent to opaque |
| Luster | Vitreous to greasy |
| Crystal System | Monoclinic |
| Cleavage | Perfect along (010) |
| Fracture | Conchoidal |
| Melting Point | Approximately 1,200 – 1,300 °C |
| Specific Gravity | 3.30 – 3.38 |
| Origin | Myanmar (Burma), Guatemala, Japan, and other locations |
| Uses | Ornamental, gemstones, carvings |
| Transparency | Mostly translucent to opaque |