We can offer your GYPSUM POWDER used for cement manufacturing . Spec: Calcium Sulphate CaSO42h2O 90.00 Magnesium Oxide MgO 0.02 Calcium Carbonate CaCO3 0.03 Silica SiO2 0.80 Ferric Oxide Fe203 0.03 Lime CaO 30.00 Phosphorus Pentoxide P2O5 Total 1.00 W s 0.75 Florine Total 0.02 W s 0.01 Free Moisture Total 15.00 During Summer Season pH of 10% solution 2.00 Bulk Denisty (gm CC) 0.85 SO3 42.00 Free Chloride 0.01