Transparency: Gypsum Can range from clear to translucent, according to the crystal formation and existence of inclusions. Transparent crystals let gentle to pass through clearly, although translucent specimens allow some light passage but appear cloudy or hazy. Density and Distinct Gravity: Density refers back to the mass for every device https://www.propanraya.com/id/produk/eco-gypsum-ee-4050