Transparency: Gypsum Can range between transparent to translucent, based on the crystal development and presence of inclusions. Clear crystals permit mild to go through Obviously, when translucent specimens permit some mild passage but appear cloudy or hazy. Deposition: Gypsum originally types as dissolved calcium and sulfate ions in drinking water. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050