OPTICAL
	Transmission Range	0.13 to 10 microns
	Refractive Index	1.4626 at 2.6 microns
	Reflection Loss	6.9% at 2.6 µm (2 surfaces)
	Restrahlen Peak	47 microns
	dN/dT	-15.2 x 10-6/oC
PHYSICAL
	Density	4.89 g/cm3
	Melting Point	1280 °C
	Thermal Conductivity	11.72 W/(m K) at 13 °C
	Thermal Expansion	18.1 x 10-6/°C at -100 to +200 °C
	Hardness	Knoop 82 kg/mm2 with 500g indenter
	Specific Heat Capacity	410 J/(kg K) at 27 °C
	Dielectric Constant	7.33 at 2MHz
	Young's Modulus (E)	53.07 GPa
	Shear Modulus (G)	25.4 GPa
	Bulk Modulus (K)	56.4 GPa
	Elastic Coefficients	C11 = 89.2 MPa; C12 = 40.0 MPa; C14=25.4 MPa
	Apparent Elastic Limit	26.89 MPa
	Poisson Ratio	0.343
CHEMICAL
	Solubility	0.17g/100g water at 23°C
	Molecular Weight	175.36
	Class/Structure	Cubic (111) cleavage

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