Although It has constraints at substantial temperatures and salinity, gypsum stays a important choice for unique drilling apps. Gypsum occurs in comprehensive beds associated with other evaporite minerals (e.g., anhydrite and halite), especially in Permian and Triassic sedimentary formations; it is deposited from ocean brine, accompanied by anhydrite and halite. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050