Transparency: Gypsum Can range between clear to translucent, dependant upon the crystal development and existence of inclusions. Clear crystals allow for gentle to go through clearly, though translucent specimens enable some mild passage but show up cloudy or hazy. Deposition: Gypsum originally types as dissolved calcium and sulfate ions in https://www.propanraya.com/id/produk/eco-gypsum-ee-4050