Gypsum Caves: Gypsum Caves, also referred to as gypsum karst caves, type through the dissolution of gypsum by groundwater. As marginally acidic drinking water percolates by means of gypsum-prosperous bedrock, it progressively dissolves the gypsum, creating underground voids and passages. Hydration of Anhydrite: Gypsum can also form throughout the hydration https://www.propanraya.com/id/produk/eco-gypsum-ee-4050