Calcium Carbonate Calcite type
CaCO3 (Calcite)
Chemical name
Calcium Carbonate Calcite type |
Mineral name
Calcite |
Chemical formula
CaCO3 (Calcite) |
Melting point [°C]
1339 |
Crystal system
trigonal |
Crystal Class
3 2/m |
Space Group
R3c |
Unit cell
a [Å]:4,99 b [Å]: c [Å]:17,06 |
Molecular weight [g/mol]
100.09 |
Frequent crystal surfaces
{1010}, {0001}, {0112}, {0221} |
Twinning
twins (0001), (0112), (1011) |
Mohs hardness
3 |
Density [g/cm3]
2.6 - 2.8 |
Cleavage
(1011) |
Fracture / Tenacity
perfect |
Color
colorless |
Streak
white transparent |
Transparency
transparent |
Refractive Index
n=1,658 |
Birefringence δ
0,174 |