Frequently Asked Questions

The properties of Sapphire are largely dependent on crystallographic orientation.

Sapphire is a highly anisotropic material with a rhombohedral type structure and high chemical stability even at high temperatures.

Sapphire's energy gap of 9 eV is one of the largest for oxide crystals.

The melting point of Sapphire is 2040C.

Sapphire permits excellent optical transmission with very little absorption from about 0.250 to 5.0 microns.

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