Transparency: Gypsum Can range between transparent to translucent, with regards to the crystal formation and presence of inclusions. Transparent crystals allow light to go through clearly, when translucent specimens allow some mild passage but look cloudy or hazy. Gypsum takes place in comprehensive beds related to other evaporite minerals (e.g., https://www.propanraya.com/id/produk/eco-gypsum-ee-4050