Properties of Tuff and Pseudotachylite play an important role in determining the type of rock. Along with Tuff vs Pseudotachylite properties, get to know more about Tuff Definition and Pseudotachylite Definition. For the ease of understanding, the properties of rocks are divided into physical and thermal properties. Rocks have a variety of properties like hardness, color, specific gravity, fracture, cleavage, luster etc. Know all about physical and thermal properties of Tuff and Pseudotachylite.