Dolomite is a double carbonate of Calcium & Magnesium (CaCO3, MgCO3). It contains impurities like Silica, Alumina & Iron oxide. For commercial purpose percentage of combined impurities should not go beyond 7%, which Dolomite becomes unsuitable for industrial purpose.
CHEMICAL SPECIFICATIONS
MgO
:
19%
CaO
:
28 to 30%
SiO2
:
1.6 to 3.0%
Physical specification is as under,
50 mm to 150 mm