Fertilizer: From The late 18th and early 19th hundreds of years, Nova Scotia gypsum, normally often called plaster, was a very sought fertilizer for wheat fields in America. Deposition: Gypsum in the beginning forms as dissolved calcium and sulfate ions in drinking water. These ions can originate from various resources, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050