Transparency: Gypsum Can vary from clear to translucent, based on the crystal development and presence of inclusions. Clear crystals let mild to pass through clearly, whilst translucent specimens make it possible for some mild passage but surface cloudy or hazy. Gypsum can be found in hydrothermal veins, that happen to https://www.propanraya.com/id/produk/eco-gypsum-ee-4050