Transparency: Gypsum Can range between clear to translucent, depending on the crystal development and existence of inclusions. Transparent crystals allow for light-weight to pass through Plainly, although translucent specimens allow some mild passage but show up cloudy or hazy. Gypsum happens in considerable beds connected with other evaporite minerals (e.g., https://www.propanraya.com/id/produk/eco-gypsum-ee-4050