Mining of Dolomite limestone This a magnesium material .basic Chemical analysis . Si02 0.10 Al203 0.07 Fe203 0.15Ca0 31.05 Mg0 21.08 L0I (950 C) 47.51Calculated Compounds Ca as caC03 55.53Mg MgC03 44.09Calculated Carbonates C02 1.00Calculated ...