Limestone & Travertine
Limestone is a sedimentary stone comprised primarily of calcium deposits. It has been used indoors and outdoors throughout the history of mankind to create some of the world's most famous architecture.
Travertine is a form of limestone deposited by mineral springs. It often has a fibrous or concentric appearance and exists in white, tan, cream-colored, and even rusty varieties. It is formed by a process of rapid precipitation of calcium carbonate in a limestone cave. In the latter, it can form stalactites, stalagmites, and other speleothems. It is frequently used inItaly and elsewhere as a building material.