Transparency: Gypsum Can vary from transparent to translucent, based on the crystal development and existence of inclusions. Transparent crystals allow for gentle to pass through Evidently, whilst translucent specimens make it possible for some light passage but appear cloudy or hazy. Density and Certain Gravity: Density refers to the mass https://www.propanraya.com/id/produk/eco-gypsum-ee-4050