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.
|CaO||:||28 to 30%|
|SiO2||:||1.6 to 3.0%|
Physical specification is as under,
50 mm to 150 mm