Pumice properties are essential when it comes to identification of rocks. The study of properties of Pumice rock is done by Mineralogists to determine the identity of rock. Some of the properties of Pumice include: Hardness, Color, Fracture, Luster, Compressive Strength etc. Pumice is Fine Grained. As compared to other rocks, Pumice is more porous and its density is 0.25-0.3 g/cm3. Get to know more about physical properties of Pumice and thermal properties of Pumice.