ROUGH STONE DETAIL
- Origin: Grown in Lab by Pulled Czochralski method. One of the best ways to produce top quality gems.
- Dimensions: About 40x12x7mm
- Grade: AAA
- Clarity: Eye Clean
- Shape: Rough
- Color: Best color change Green to Red
- Polish: Very Good
- Hardness: 8.5 (Mohs Scale)
- Stock Postion: Available
Chemical Properties
- Chemical composition: BeAl2O4
- Hardness: 8.5
- Color: green in daylight and red-violet in incandescent light.
- Luster: vitreous to greasy
- Transparency: transparent
- Fracture: conchoidal, brittle
- Alexandrite Index of refraction: 1.745 – 1.759
- Molecular Weight = 126.97 gm
