Transparency: Gypsum Can vary from clear to translucent, depending on the crystal development and presence of inclusions. Clear crystals enable light-weight to go through Obviously, even though translucent specimens permit some light passage but surface cloudy or hazy. Its mineral structure still includes some drinking water although. Heating gypsum will https://www.propanraya.com/id/produk/eco-gypsum-ee-4050