Map Of gypsum deposits in northern Ohio, black squares indicate The situation of deposits, from "Geography of Ohio", 1923 Gypsum is Employed in lots of programs: Why Gypsum Might Not Be the top Resolution About-application of gypsum can strip important nutrients from the soil, and this can harm plant expansion. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050