Inclusions: All-natural gypsum crystals normally consist of inclusions, which can be international minerals or components trapped inside the crystal construction through development. Frequent inclusions in gypsum is usually clay minerals, iron oxides that cause coloration, or simply little gasoline bubbles. Gypsum occurs in extensive beds linked to other evaporite minerals https://www.propanraya.com/id/produk/eco-gypsum-ee-4050