Variety of limestone which forms stalactites and stalagmites and other deposits in limestone caves (dripstone) and the mouths of hot and cold calcareous springs.

1797, from Italian travertino "a kind of building stone," from Latin tiburtinus, from Tiburs, adjective from Tibur (modern Tivoli), in Latium.

limestone often used for building.

A variety of limestone which is a precipitant from cave or spring waters. Some varieties of travertine take a polish and have been marketed as travertine marble.

Formed layer by layer, travertine is a form of limestone. Travertine develops near geothermal springs and due to high levels of geothermal activity, several large travertine deposits are located in Yellowstone National Park. Most noted for beautiful markings that ribbon throughout the stone, travertine is a softer stone (comparatively) but can be p [..]

A type of crystalline or micro crystalline limestone with a distinctive layered structure. Some layers contain pores and cavities which create an open texture. Depending on the product selected, pores [..]

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a natural stone, it is white and is a form of calcium carbonate and is very hard in texture.

similar composition to limestone but with holes created by hot springs.  Colors include beige, red, yellow and brown, with some variation from piece to piece.

A calcium carbonate rock deposited around lime-rich springs and lakes.

fine-grained limestone deposited by chemical precipitation from a lime-saturated solution, commonly sold as a marble.