Aside from currently being plentiful, gypsum is easily refined right into a powder for plaster or formed into sheets of wallboard. Hydration of Anhydrite: Gypsum might also sort throughout the hydration of anhydrite (CaSO₄). Anhydrite is usually a calcium sulfate mineral that lacks the drinking water molecules existing in gypsum. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050