Map Of gypsum deposits in northern Ohio, black squares indicate the location of deposits, from "Geography of Ohio", 1923 Gypsum is Employed in lots of programs: Soil Modification: Gypsum, also called land plaster, is made use of to be a soil conditioner to improve its framework and fertility. It Advantages https://www.propanraya.com/id/produk/eco-gypsum-ee-4050