Diorite properties are essential when it comes to identification of rocks. The study of properties of Diorite rock is done by Mineralogists to determine the identity of rock. Some of the properties of Diorite include: Hardness, Color, Fracture, Luster, Compressive Strength etc. Diorite is Medium to Coarse Grained. As compared to other rocks, Diorite is more porous and its density is 2.8-3 g/cm3. Get to know more about physical properties of Diorite and thermal properties of Diorite.