travertineCompact, banded limestone, usually light-colored, evaporated or deposited from hot springs; sometimes also applied to stalactites and stalagmites. Taking a high polish, it is used for interior decoration. Tufa, or calcareous sinter, is a porous equivalent. Related category GEOLOGY AND PLANETARY SCIENCESource: USGS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |