Deposition: Gypsum Originally types as dissolved calcium and sulfate ions in h2o. These ions can originate from a number of sources, including the dissolution of calcium-that contains minerals in rocks plus the leaching of sulfur compounds from natural and organic subject and volcanic emissions. Soil h2o possible monitoring: a gypsum https://www.propanraya.com/id/produk/eco-gypsum-ee-4050