It's used as an abrasive, for example in pedicures.
It is abrasive, metals in pumice are not water soluble, naturally occurring substance http://www.wisegeek.com/what-are-the-uses-of-pumice.htm
Pumice is used to clean teeth from their dental plaque. Also used to smooth callus and other rough areas on feet.
Not necessarily. Some chucks of pumice can be boulder sized.
Pumice can be used in soap as an abrasive to help with really dirty hands. It probably has many other uses as well.
Large amounts of pumice are found in Italy, Turkey, Greece, Spain, Canada, and parts of the United States, especially the Rocky Mountain and Pacific Coast states. In many of these locations, pumice is mined to be sold for a variety of uses.
Pumice is a light and porous volcanic rock formed when glassy lava solidifies rapidly. Some pumice clasts are known to be foliated.
No. Clay consists of highly weathered material. While some components of pumice may by re-worked into clay, it will have long since ceased to be pumice.
Floating rocks: pumice. Non-floating rocks: all but pumice. Pumice can float on water because its density is so low, due to trapped bubbles of air which formed during its solidification from lava.
Pumice, a volcanic rock that is like a silicate version of Styrofoam, will float on water, if it is of high enough air content (some pumice is, some is not). Pumice rock is ground up and added to cleansers and some soaps (Lava) as a scrubbing agent.
Pumice is produced in the lava from certain volcanic eruptions. It forms from gas-rich andesitic or rhyolitic lava and has so many gas bubbles that some pumice can float on water.
Pumice can be white, gray, or even pink.
No. Pumice is not magnetic.