Map Of gypsum deposits in northern Ohio, black squares show The situation of deposits, from "Geography of Ohio", 1923 Gypsum is used in lots of purposes: Gypsum adjustments the soil composition through a course of action named flocculation. The gypsum enables the modest and dense clay particles to affix collectively https://www.propanraya.com/id/produk/eco-gypsum-ee-4050