Transparency: Gypsum Can range from transparent to translucent, depending on the crystal formation and presence of inclusions. Transparent crystals let mild to go through clearly, while translucent specimens enable some gentle passage but seem cloudy or hazy. Density and Precise Gravity: Density refers back to the mass for each unit https://www.propanraya.com/id/produk/eco-gypsum-ee-4050