Gypsum Caves: Gypsum Caves, generally known as gypsum karst caves, sort with the dissolution of gypsum by groundwater. As a little bit acidic water percolates as a result of gypsum-rich bedrock, it progressively dissolves the gypsum, generating underground voids and passages. Hydration of Anhydrite: Gypsum may kind through the hydration https://www.propanraya.com/id/produk/eco-gypsum-ee-4050