SiC * SOI * GaAs * InAs * InP * InSb * GaSb * GaP * GaN on Sapphire * Sapphire * Metal Deposition * Nitride * Fused Silica * Quartz * Float Zone * Pyrex * Ultra-Thin & Flat Silicon

CALCIUM CARBONATE (CALCITE), CaCO₃

Calcite is widely used for polarizing optics due to its birefringent properties.
Maximum available size: 30 x 30 x 30 mm.

Chemical Formula CaCO3 Molecular Weight 100.09 Crystal Class Hexagonal Density, g/cm3 at 300 K 2.71 Transmission Range, µm 0.3 - 5.5 Reflection Loss for two surfaces at 2 µm, % 10.6 Dielectric Constant for 104 Hz at 293 K parallel perpendicular 8.0 8.5 Melting Temperature, K 1612 Thermal Conductivity, W/(m K) at 273 K parallel perpendicular 5.526 4.646 Thermal Expansion, 1/K at 273 K parallel perpendicular 25 x 10-6 -5.8 x 10-6 Specific Heat, cal/(g K) at 273 K 0.203 Solubility, g/100 g H2O at 273 K 0.0014 Mohs Hardness 3 Young's Modulus, GPa parallel perpendicular 72.35 88.19 Bulk Modulus, GPa 15.02