Gypsum Caves: Gypsum Caves, also called gypsum karst caves, variety from the dissolution of gypsum by groundwater. As a bit acidic h2o percolates by means of gypsum-wealthy bedrock, it gradually dissolves the gypsum, making underground voids and passages. Pretty frequently it is actually formed in the hydration of anhydrite by https://www.propanraya.com/id/produk/eco-gypsum-ee-4050