Travertine is limestone that has been formed by hot springs. Water movement caused erosion of the stone creating numerous holes of varying sizes. Travertine is similar to marble in that it can be polished, and is sensitive to acids and household cleaners with chelating agents.
Slate is a fine-grained metamorphic stone usually black, gray or green. Slate is not acid sensitive but prolonged use of household cleaners with chelating agents can cause streaking and dullness.
Terrazzo appears more uniform than most natural stones and is available in tile form or by a pouring application on the slab. Terrazzo is a mixture of Portland cement and marble chips; these chips can range in size from a fraction of an inch to as large as several inches.
Granite is an extremely hard natural stone and is not as porous as other natural stones. Though not acid sensitive, prolonged use of household cleaners with chelating agents will cause streaking and can be a homeowner’s nightmare.
Marble is a hard, crystalline or granular, metamorphic limestone, white or variously colored and sometimes streaked or mottled, which can take a high polish. It is often used in commercial and office buildings and in sculptures. Marble flooring is found in many homes today, too. It enhances any foyer, den, breakfast nook or any other room, for that matter.