pumice Synonyms

pumice stone colmena tuff rock polish mineral holystone grind gloss furbish emery cryolite rub sand polish thoroughly ballast stone abrasive sand igneous rock wash stone smooth shine scour sandpaper corundum cobalt boron bauxite barite azurite asphalt asbestos aragonite andesite alabaster abrasive brimstone brookite coal cleanse clay chromite chlorite chalcedony carbon calcite burnish buff abrade