Gypsum Can be found in hydrothermal veins, which can be fractures in rocks stuffed with mineral-abundant fluids that originate from deep in the Earth's crust. Map of gypsum deposits in northern Ohio, black squares suggest the location of deposits, from "Geography of Ohio", 1923 Gypsum is Utilized in lots of https://www.propanraya.com/id/produk/eco-gypsum-ee-4050
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