Pumice comes from the Italian language and is named differently in different languages. In Turkish, it pumice, stone corn, straw, move, move are known by names such as the heel.
Pumice is a volcanic rock types. It is a volcanic glass structure. On earth and the most widely used type of pumice it is acidic. Such white is the color of dirty. And sudden cooling of the body during the formation of gas as a result of the sudden abandonment has become very porous structure. The pores are not connected with each other. Density 0.5-1 g / cm3 range. Due to the greater porosity of pumice heat and sound permeability it is very low. It does not contain crystal water.