travertine

Not too far below the ground, the Yellowstone supervolcano’s persistent geothermal heat stokes iconic geysers, boiling mudpots, and colorful hot springs. A body of magma resides about 3 miles below the surface of Yellowstone National Park. The hot rock warms the groundwater, which then travels upward along faults, dissolving minerals from the surrounding rock as it passes by. By the time the hot water emerges at the surface, it’s laden with minerals. Travertine is the most common type of stone made by hot springs. Calcium carbonate is dissolved from layers of limestone rock below and carried upward. As the water flows out of the earth, it cools down and deposits the minerals. Over time, the flowing hot water leaves behind layer upon layer of newly-formed rock in the artistic pattern that makes travertine so treasured.

There is no mistaking natural stone for its range, beauty, and sustainability. These are among the many reasons Craig Copeland, an architect, sculptor, industrial designer, and partner at Pelli Clarke & Partners finds himself recommending natural stone to many of his clients.

How travertine is formed and how to use as a building material.

Limestone and travertine will etch when exposed to the acids and bases present in many cleaning products and common kitchen ingredients such as vinegar, bleach, citrus, and wine.