Besides Remaining considerable, gypsum is definitely refined right into a powder for plaster or fashioned into sheets of wallboard. Map of gypsum deposits in northern Ohio, black squares indicate The placement of deposits, from "Geography of Ohio", 1923 Gypsum is Utilized in a wide variety of applications: Gypsum karst landscapes https://www.propanraya.com/id/produk/eco-gypsum-ee-4050