- Chemical Formula: Al2Be3Si6O18, Aluminium beryllium silicate
- Crystal Structure: Hexagonal, hexagonal prisms
- Hardness: 7 on the Mohs scale
- Refractive Index: 64 Ð 1.596
- Density: 68 Ð 2.74
- Cleavage: Indistinct
- Transparency: Transparent to opaque
- Double Refraction / Birefringence: -0.004 to -0.005
- Luster: Vitreous
- Fluorescence: None
SHIPPING CHARGES
FEDEX/DHL
| Weight (kgs) | AIR MAIL | Asia/USA/Canada | Europe | Australia |
|---|---|---|---|---|
| Below 0.50kg | $15.00 | $45.00 | $55.00 | $45.00 |
| Below 1.0kg | $30.00 | $55.00 | $60.00 | $70.00 |
| Below 1.5kg | $45.00 | $70.00 | $70.00 | $90.00 |
| Below 2.0kg | $50.00 | $80.00 | $80.00 | $100.00 |
| Below 2.5kg | $100.00 | $100.00 | $120.00 |
Please note: For Europe, this table only covers for UK, Italy, Spain and nearby countries.