Construction
Pumice is used to make lightweight materials for construction, such as concrete and concrete block. Pozzolan, the fine-grain type of pumice, is added to concrete to create a smooth and plaster-like concrete. Pumice has been used to make concrete since the Roman times. Pumice is also used in construction to make insulation, acoustic tile, stucco and plaster.
Cosmetics
Pumice has an abrasive texture that makes it useful in many cosmetic products. Soaps and cleansers contain pumice as a natural exfoliant. Pumice stones also are used to buff calloused skin from hands and feet. Even dental products include pumice due to its gentle buffing properties.
Polishes
Pumice is used to make polishes and scourers for a variety of purposes. For example, television manufacturers use pumice to polish and grind the glass of TV screens. Pumice is even used the the manufacturing of blue jeans. The abrasive quality of this stone comes into play again as the pumice creates distressed-looking denim.
Sculpting
Along with other natural materials, pumice is used by sculptors. The lightweight yet abrasive quality of the stone makes it an ideal substance to use for carving stone. The other benefit of pumice is that, while it is erosive, it is still fairly gentle. For this reason, pumice can be used to carve ivory.