Our Dark Emperador Collection of marble tiles have a dramatic vein cut in a rich espresso brown jewel tone with rich veining. A bullnose is a trim tile with a convex radius on one edge for finishing the top of a wainscot or for turning an outside corner. Look for the matching tiles, mosaic and finishing pieces from this collection. Hand selected exclusively for our Floor & Decor Casa Antica Brand. ATTENTION Travertine, Marble, Granite, Slate, Limestone and Quartzite are natural stones. Characteristics of natural stone include variances in shade, color and hardness. Checking the material and blending the tiles to taste prior to installation is highly recommended. All natural stone must be sealed with a penetrating sealer and be regularly maintained. All sizing is nominal.