ShellStone by Ergon USA is a rectified color-body porcelain tile in 4 colors, Made in the USA and available on Quick Ship in a 12x24” & 24x48” Naturale finish and a 3D mini-fluted Groove textural decor in 24x48” for walls. It is inspired by the sedimentary rocks off the coasts of southern Italy that have a very elegant and balanced mixture of sea shells and mineral inclusions of varying sizes.