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Infrared Transmitting Glass vs. Limestone

Infrared transmitting glass belongs to the glass and glass-ceramics classification, while limestone belongs to the natural stone. There are 9 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is infrared transmitting glass and the bottom bar is limestone.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 4.4 to 4.8
2.6
Elastic (Young's, Tensile) Modulus, GPa 18 to 63
77
Poisson's Ratio 0.28 to 0.3
0.25
Specific Heat Capacity, J/kg-K 360 to 430
920
Stiffness to Weight: Axial, points 2.3 to 7.3
16
Stiffness to Weight: Bending, points 20 to 28
55
Thermal Conductivity, W/m-K 0.0060 to 0.23
2.1
Thermal Diffusivity, mm2/s 0.0029 to 0.14
0.88
Thermal Expansion, µm/m-K 9.0 to 17
8.0