Double Carbonate of Magnesium and Calcium is used in paints as extender in water based paints like emulsions, dry distempers, primers etc. The Carbonate can be used in wall putty and is consumed in steel plants for steel melting shop. The Carbonate is used in glass industry, soap industry and chemical industry. The Double Carbonate of Magnesium and Calcium contains 21.7 MgO and 30.4 % CaCO3 and the remaining being CO2.