Booth: AWE 10-G27 | Synthetic Gemstone |
Product Description
- Synthetic Beryllium Alum silicate
- Chemical composition: Be3, Al2, Si6, O18
- Minor chemical elements (wt./%): MnO 0.15-0.26, FeO 1.52-1.89
- Crystal system: hexagonal
- Space group: P6/mcc Density (g/cm3): 2.72-2.73
- Cleavage: absent Mohs hardness: 8
- Fracture: uneven to conchoidal
- Brittleness: brittle Index of refraction: No- 1.570, Ne- 1.565
- Optical character: uniaxial, negative Birefringence: 0.005
- Growth method: hydrothermal process