Transmission Range	0.18 ... 3.6 µm
Refractive Index	no= 1.6775, ne= 1.6899 @ 185 nm no= 1.5709, ne= 1.5809 @ 325 nm no= 1.5482, ne= 1.5575 @ 508 nm no= 1.5423, ne= 1.5513 @ 644 nm no= 1.5201, ne= 1.5282 @ 2.05 µm no= 1.4995, ne= 1.5070 @ 3.00 µm
dn / dT	–6.5 ×10–7 / K || Y, –5.5 ×10–7 / K _|_ Y
Density	2.648 g/cm3
Melting Point	1700 °C
Molecular Weight	60.08
Thermal Conductivity	1.4 W/(m K)
Specific Heat	787 J/(kg K) @ 25 °C
Thermal Expansion	5 ×10–7
Hardness (Knoop)	461 @ 200 g, 741 @ 500 g indenter load
Young's Modulus	76.5 GPa _|_ Y , 97.2 GPa || Y
Shear Modulus	36.4 GPa / 57,13 GPa
Bulk Modulus	98.98 GPa
Elastic Coefficient	C11 = 86.75 / C12 = 6.87 / C13 = 11.3 / C33 = 106.8 / C44 = 57.86 GPa
Dielectric Constant	3.9 / 4.34
Solubility in Water	insoluble
Crystal Structure	single crystal
Cleavage Planes	none
AT cut = + 35o from Z towards Y	BT cut = - 49o from Z towards Y
CT cut = + 38o from Z towards Y	DT cut = - 52o from Z towards Y
ET cut = - 66o from Z towards Y	FT cut = - 57o from Z towards Y