Transparency: Gypsum Can range between transparent to translucent, dependant upon the crystal development and existence of inclusions. Transparent crystals allow for light-weight to go through clearly, while translucent specimens let some mild passage but seem cloudy or hazy. Gypsum happens in comprehensive beds affiliated with other evaporite minerals (e.g., anhydrite https://www.propanraya.com/id/produk/eco-gypsum-ee-4050