Main Properties

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