Stucco: This Exterior plaster cladding is often built having a base of gypsum, providing a temperature-resistant and decorative finish for making facades. Gypsum takes place in substantial beds connected to other evaporite minerals (e.g., anhydrite and halite), especially in Permian and Triassic sedimentary formations; it is deposited from ocean brine, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050