Travertines are a crystalline form of calcium carbonate that developed in layered deposits adjacent to cold and warm mineral springs. The characteristic holes were formed by the precolation of the mineral waters throughout the deposit over millions of years. Travertine’s vary widely in hardness, density and porosity. They are typically light to dark beige although some have white to dark brown veining. Travertine’s can be polished to a high gloss.
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