Transparency: Gypsum Can vary from clear to translucent, dependant upon the crystal development and existence of inclusions. Clear crystals allow for mild to pass through Evidently, even though translucent specimens make it possible for some mild passage but appear cloudy or hazy. Gypsum are available in hydrothermal veins, that happen https://www.propanraya.com/id/produk/eco-gypsum-ee-4050