Color: Nero Marquina Marble (black background with fine and compact grain and white veins); Size: 1 x 4 (25 x 100 mm) inch pieces mounted on 9 x 12" (0.75 sq. ft.) sturdy mesh tile sheet; 6 rows and 4 columns with 24 stones per sheet; 1/16 inch grout width; Thickness: 5/16 inch; Finish: Polished (Glossy); Premium Grade?Nero Marquina Marble Herringbone Mosaic Tiles. Black Marquina Marble Polished 1x4 Herringbone Mosaic Wall & Floor Tiles are perfect for any interior projects. The 1x4 Nero Marquina Venato Marble Herringbone Mosaic tiles can be used for a kitchen backsplash, bathroom flooring, shower surround, dining room, entryway, spa. Our timeless?Glossy Nero Marquinia Black Marble Herringbone Mosaic tiles with a large selection of coordinating products is available and include?arabesque, fish scale, penny round, herringbone, basketweave mosaics, 12x12, 18x18, 12x24, subway tiles, moldings, borders, and more.