Fertilizer: From The late 18th and early 19th generations, Nova Scotia gypsum, normally often called plaster, was a remarkably sought fertilizer for wheat fields in The usa. Gypsum are available in hydrothermal veins, that are fractures in rocks stuffed with mineral-loaded fluids that originate from deep within the Earth's crust. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050