Description Cordoba Splitface Travertine Mosaic Tile 2 X 6 | $4.99. Each sheet is 1 square foot and sold per sheet.All Natural Stone products such as granite, marble, etc. are a product of nature and have color, shade, density, and veining variation. When installing, it is recommended to mix tiles from different boxes. All natural stone products should be sealed with a penetrating sealer and maintained with product appropriate cleaners.