Transparency: Gypsum Can range from clear to translucent, with regards to the crystal development and existence of inclusions. Transparent crystals let light-weight to go through Obviously, whilst translucent specimens enable some light-weight passage but seem cloudy or hazy. Gypsum are available in hydrothermal veins, which might be fractures in rocks https://www.propanraya.com/id/produk/eco-gypsum-ee-4050