Inclusions: Pure gypsum crystals frequently contain inclusions, which happen to be overseas minerals or materials trapped within the crystal structure throughout development. Typical inclusions in gypsum is often clay minerals, iron oxides that lead to coloration, as well as very small fuel bubbles. You may use Gypsum to lower compaction, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050