Travertine is a terrestrial sedimentary rock. Groundwater traveling through limestone beds or geothermally heated hot-springs dissolves calcium carbonate. As the mineral-saturated water encounters surface conditions, this dissolved matter precipitates in thin layers. With time, the minerals build up into deposits of travertine. The stone is generally solid but has pore spaces and fossils that give the stone lots of natural character.

The Romans utilized travertine for thousands of years, in fact he largest building in the world constructed mostly of travertine is the Colosseum. Travertine is also one of the most frequently used stones in modern architecture, and is commonly used for façade material, wall cladding, flooring, paving patios and garden paths.

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