Gypsum Can be a tender sulfate mineral made up of calcium sulfate dihydrate, While using the chemical components CaSO4·2H2O.[4] It is actually widely mined and is utilised as a fertilizer and as the principal constituent in many types of plaster, drywall and blackboard or sidewalk chalk. Cement Producing: Selected sorts https://www.propanraya.com/id/produk/eco-gypsum-ee-4050