Property | Specification |
Chemical Formula | Be?SiO? |
Crystal System | Orthorhombic |
Color | Colorless, Yellow, Pink, Brown |
Hardness (Mohs) | 7.5 - 8 |
Specific Gravity | 2.96 - 3.02 |
Refractive Index | 1.650 - 1.700 |
Birefringence | 0.009 - 0.012 |
Luster | Vitreous |
Transparency | Transparent to Translucent |
Pleochroism | None |
Optical Character | Uniaxial (+) |
Dispersion | 0.016 |