Limestone is a sedimentary rock composed mainly of calcium. Limestone slabs range from light to dark and color. The texture of Limestone varies from fine grain to smooth, fossil-bearing types that showcase a piece of history. Limestone, like Travertine, features beautiful Earth tones that provide great design flexibility. Due to its luxurious textures and soft feel, it is most often used for flooring. Limestone also makes a beautiful fireplace hearth or bathroom vanity. Due to its Calcium-based make-up, Limestone has similar use and care characteristics to Marble.