Travertine is a sedimentary rock. Travertine is formed by dissolved limestone, during hot water dissolve underlying limestone and carry it upward with the geyser. This stone is full of air bubbles as its appearance. Travertine’s cavities or voids are filled with stone dust, then polished or honed to give a smooth surface.
Travertine is traditionally used as a building material, the classical image of travertine is with very distinct horizontal veining. Because travertine is composed of calcium carbonates, it is more porous than marble. To keep travertine countertop clean use warm water and a small amount of neutral ph non abrasive soap and rinse with clear water and dry. Never use vinegar or any citrus acid cleaners as they can erode and stain the surface. In addition, travertine will darken in age.