Map Of gypsum deposits in northern Ohio, black squares suggest the location of deposits, from "Geography of Ohio", 1923 Gypsum is Employed in numerous types of purposes: Gypsum adjustments the soil composition via a process called flocculation. The gypsum enables the tiny and dense clay particles to join collectively to https://www.propanraya.com/id/produk/eco-gypsum-ee-4050