Hardness | Mohs | 3-4 |
Unit Volume Weight | gr/cm3 | 2.74 |
Density | gr/cm3 | 2.76 |
Water absorption at atmospheric pressure | by weight - % | 0.1 |
by volume - % | 0.3 | |
Water absorption at boiling water | by weight - % | 0.1 |
by volume - % | 0.2 | |
Porosity | % | 0.3 |
Compressive strength | kg/cm2 | 688 |
Compressive strength after freesing | kg/cm2 | 535 |
Average Abrasion Strength | cm3/50 cm2 | 25 |
Degree of pores | % | 0,7 |
Modulus of Elasticity | kg/cm2 | 4,9 |
Chemical analysis: | ||
SiO2 | 0,56 | |
Fe2O3 | 0.57 | |
CaO | 53.26 | |
MgO | 1,42 |