Agriculture Gypsum .
Calcium Oxide Cao 31.94%
Magnesium Oxide MgO 1.00%
Silica SiO2 0.28%
Aluminium Oxide Al2O3 0.02%
Iron Oxide Fe2O3 0.04%
Sulphate SO3 44.58%
Purity CaSo4-2H2O 95.85%
Crystal water 20.70%
Chloride Cl as (Na Cl) 0.008%
Moisture (Free Moisture) 0.54%
Fineness 70-200 Mesh