Map Of gypsum deposits in northern Ohio, black squares reveal The situation of deposits, from "Geography of Ohio", 1923 Gypsum is used in numerous types of purposes: Gypsum alterations the soil composition through a method known as flocculation. The gypsum enables the little and dense clay particles to hitch collectively https://www.propanraya.com/id/produk/eco-gypsum-ee-4050