Marble is a natural stone which is made by limestone's metamorphic crystallization that results in the conversion of calcium carbonate into calcite crystals. Floor Tiles, on the other hand, are made from silicates or clay fired at high temperatures. Marble tiles are an excellent choice for shower floors and walls, vanity tops and recesses in bathrooms. They work great in kitchen splash backs and bench tops. They can even be used as tabletops both indoors and outdoors. And, of course, they can be used for flooring in any area.