Aquamarine
VIBRANIUM LTD
Aquamarine
| Property | Specification |
| Chemical Formula | Be?Al?Si?O?? |
| Crystal System | Hexagonal |
| Color | Light blue to deep blue |
| Hardness (Mohs) | 7.5 - 8 |
| Specific Gravity | 2.68 - 2.80 |
| Refractive Index | 1.564 - 1.596 |
| Birefringence | 0.005 - 0.009 |
| Luster | Vitreous |
| Transparency | Transparent to Translucent |
| Pleochroism | Weak to Moderate (Blue shades) |
| Optical Character | Uniaxial (-) |
| Dispersion | 0.014 |
| Cleavage | Indistinct |
| Fracture | Conchoidal to Uneven |
| UV Fluorescence | Weak to None |