Map Of gypsum deposits in northern Ohio, black squares show the location of deposits, from "Geography of Ohio", 1923 Gypsum is Utilized in numerous types of apps: Gypsum are available in hydrothermal veins, which are fractures in rocks stuffed with mineral-abundant fluids that originate from deep in the Earth's crust. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050