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)