Gypsum Caves: Gypsum Caves, often known as gypsum karst caves, kind through the dissolution of gypsum by groundwater. As a little bit acidic h2o percolates by gypsum-wealthy bedrock, it gradually dissolves the gypsum, producing underground voids and passages. Gypsum is commonly used to salvage alkali soils and enhance soil composition. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050