Map Of gypsum deposits in northern Ohio, black squares suggest The situation of deposits, from "Geography of Ohio", 1923 Gypsum is Utilized in numerous types of applications: Gypsum is calcium sulfate, a naturally developing mineral. It's been touted as beneficial for breaking apart compact soil, In particular clay soil. It https://www.propanraya.com/id/produk/eco-gypsum-ee-4050