Be3Al2Si6O18 (Cr/V bearing)Hexagonal
Emerald
Be3Al2Si6O18 (Cr/V bearing)
SilicatesChemical FormulaBe3Al2Si6O18 (Cr/V bearing)
Crystal SystemHexagonal
Mohs Hardness7.5
Specific Gravity2.72
ColorGreen
LusterVitreous
StreakWhite
CleavageOne direction
FractureConchoidal
Occurrence
Green variety of beryl colored by chromium/vanadium. Most valuable gemstone per carat.