Travertine is a terrestrial sedimentary rock, formed by the precipitation of carbonate minerals from solution in ground and surface waters, and geothermally heated hot-springs. Similar deposits formed from ambient-temperature water are known as tufa.
Travertine is a form of limestone deposited by mineral springs, especially hot springs. Travertine often has a fibrous or concentric appearance and exists in white, tan, cream-colored, and even rusty varieties. It is formed by a process of rapid precipitation of calcium carbonate, often at the mouth of a hot spring or in a limestone cave. In the latter, it can form stalactites, stalagmites, and other speleothems.
Travertine is known to people since ancient times. Mainly used in construction and decoration. Some of the most popular colors are Ivory, Beige, Walnut colors (light, medium, dark), Noche (Dark brown), Silver and Gold. Combinations of these colors are also possible. Colors variations and color name variations are quite common within the Travertine industry.