Industrial Purposes: Gypsum Has numerous industrial employs, together with during the manufacture of cement, to be a filler in paper and textiles, and being a element in creating molds and casts. Map of gypsum deposits in northern Ohio, black squares suggest the location of deposits, from "Geography of Ohio", 1923 https://www.propanraya.com/id/produk/eco-gypsum-ee-4050