Fertilizer: From The late 18th and early nineteenth hundreds of years, Nova Scotia gypsum, typically known as plaster, was a highly sought fertilizer for wheat fields in The usa. Deposition: Gypsum at first forms as dissolved calcium and sulfate ions in water. These ions can originate from many different resources, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050