Mannington presents Artistica, a porcelain tile modeled after slate with a smooth feel and satin glaze. Artistica uses a unique design process which helps ensure that no two tiles are the same, according to the company. The tiles comes in 18-by-18-, 13-by-13- and 6 1/2-by-6 1/2-inch sizes, with a full array of trims for both floor and countertop applications.