Sapphire
Crystallographic characteristics Al2O3 (sapphire - synthetic corundum)
Optical characteristics Al2O3 (sapphire - synthetic corundum)
Thermo-physical characteristics Al2O3 (sapphire - synthetic corundum)
Mechanical characteristics Al2O3 (sapphire - synthetic corundum)
Chemical characteristics Al2O3 (sapphire - synthetic corundum)
