Marine Deposits: Gypsum Will also be located in marine deposits, typically related to historic seas that have since evaporated. These deposits are available in areas that has a historical past of marine sedimentation, including parts of Europe, the center East, and North America. Gypsum are available in hydrothermal veins, which https://www.propanraya.com/id/produk/eco-gypsum-ee-4050