Gypsum Caves: Gypsum Caves, also known as gypsum karst caves, variety through the dissolution of gypsum by groundwater. As a bit acidic water percolates through gypsum-abundant bedrock, it little by little dissolves the gypsum, building underground voids and passages. Altered Soil pH: Gypsum can have a liming effect on soil. This https://www.propanraya.com/id/produk/eco-gypsum-ee-4050