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Calcium Fluoride vs. GM-120 Glass Ceramic

Calcium fluoride belongs to the non-glass optical ceramics classification, while GM-120 glass ceramic belongs to the glass and glass-ceramics. There are 6 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is calcium fluoride and the bottom bar is GM-120 glass ceramic.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.2
2.5
Elastic (Young's, Tensile) Modulus, GPa 80
56
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 45
52
Thermal Conductivity, W/m-K 9.7
3.0
Thermal Expansion, µm/m-K 19
9.5