Iron OreIron Ore :Fe62.5%min/BasicAl2O33%MaxSiO23.5%MaxSulphur0.05%MaxPhosphorus0.1%MaxCu0.1%MaxLOI2.0%MaAntimonyAntimony Ore :Sb 50 % min. Pb 0.50% max. As 0.03% max. s 15%max.GypsumGypsum :COMBINED= 20.42 %CaSO4 2H2O = 97.56 %MOISIURE = 0.51 %If you interest it, please to contract us. And tell us about quantity of Gypsum at you want to buy per month.