Chemical Homes: The Calcium and sulfur content of gypsum add to its useful effects in agriculture plus some industrial processes. Gypsum happens in in depth beds connected with other evaporite minerals (e.g., anhydrite and halite), specially in Permian and Triassic sedimentary formations; it's deposited from ocean brine, accompanied by anhydrite https://www.propanraya.com/id/produk/eco-gypsum-ee-4050