Gypsum Caves: Gypsum Caves, often called gypsum karst caves, variety through the dissolution of gypsum by groundwater. As a little acidic drinking water percolates via gypsum-rich bedrock, it gradually dissolves the gypsum, building underground voids and passages. Gypsum deposits most often type in evaporative environments where significant evaporation costs bring https://www.propanraya.com/id/produk/eco-gypsum-ee-4050