The article offers information on pumice, an important commodity for the construction, horticulture and abrasives industries. The commodity is described as an extremely light, highly porous extrusive volcanic rock which was formed due to the rapid cooling of air-pocketed lava. It is noted that the characteristics of pumice make it as an ideal aggregate material in lightweight building blocks in the U.S. and abroad. The leading countries in terms of pumice production are Greece and the U.S.
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Mineral resource of the month: pumice and pumicite