Yttrium Aluminum Garnet (YAG)

Color: Wide range of colors available.

Moh’s Hardness: 8.5

Refractive Index: 1.833

Critical Angle: 33.12°

Specific Gravity: 4.55

Cleavage: Imperfect

Fracture: Conchoidal

Dispersion: Moderately high (.028)

Heat Sensitivity: Slight

Birefringence (double refraction): None

Crystal Structure: Isometric