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Alpha Quartz vs. Lead-alkali-silica Glass

Alpha quartz belongs to the non-glass optical ceramics classification, while lead-alkali-silica glass belongs to the glass and glass-ceramics. There are 5 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is alpha quartz and the bottom bar is lead-alkali-silica glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.7
3.1
Elastic (Young's, Tensile) Modulus, GPa 91
67
Stiffness to Weight: Axial, points 19
12
Stiffness to Weight: Bending, points 57
43
Thermal Expansion, µm/m-K 9.5
9.0