Density and Particular Gravity: Density refers to the mass for each device quantity of the material, when specific gravity compares a mineral's density towards the density of h2o. Crystal System: Gypsum crystals belong for the monoclinic crystal method. This crystal composition has a few unequal axes, with a person angle https://www.propanraya.com/id/produk/eco-gypsum-ee-4050