Map Of gypsum deposits in northern Ohio, black squares indicate The situation of deposits, from "Geography of Ohio", 1923 Gypsum is Utilized in a wide variety of applications: Gypsum can be found in hydrothermal veins, which can be fractures in rocks crammed with mineral-loaded fluids that originate from deep inside https://www.propanraya.com/id/produk/eco-gypsum-ee-4050