20ct Collection Crystals of Hydrothermal Beryl Lab Created Rough Stone

Created Beryl

Lot R949

Color: Green

Type: Full crystal with seed

Size: 18x10x9 mm 

Weight: 20 ct

Mineral: Beryl

Chemical Formula: Be3Al2Si6O18
Crystal System: Hexagonal
Hardness (Mohs): 7.5
Refractive Index: 1.564-1.602
Density, g/cm3: 2.7
Dispersion: 0.014
Growth Method: Hydrothermal