Inclusions: Pure Gypsum crystals often incorporate inclusions, which might be foreign minerals or supplies trapped within the crystal framework during formation. Typical inclusions in gypsum may be clay minerals, iron oxides that induce coloration, or perhaps little gas bubbles. If you plan to use gypsum within the existence of plantings, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050