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Travertine - IMG_7968 | by Nicola since 1972
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Travertine - IMG_7968

Travertine (in other languages: Chinese: 洞石, Persian: تراورتن, German: Travertin, Italian: Travertino Romano) 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 and cream-colored 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. It is frequently used in Italy and elsewhere as a building material.

 

Travertine is a terrestrial sedimentary rock, formed by the precipitation of carbonate minerals from solution in ground and surface waters, and/or geothermally heated hot-springs. Similar (but softer and extremely porous) deposits formed from ambient-temperature water are known as tufa.

 

en.wikipedia.org/wiki/Travertine

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Taken on October 13, 2010