Fertilizer: Within The late 18th and early nineteenth centuries, Nova Scotia gypsum, typically called plaster, was a really sought fertilizer for wheat fields in America. Gypsum are available in hydrothermal veins, which happen to be fractures in rocks stuffed with mineral-prosperous fluids that originate from deep within the Earth's crust. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050