Bianco Dolomite Polished Beautiful white polished marble tile. The smooth polish gives this dolomite marble wall tile a luminous shine White dolomite natural stone product contains a variation in color, texture, shading and veining. Natural stone like this beautiful Bianco Dolomite Polished Marble Tile makes a timeless statement. This 4 x 12 decorative tile comes in white and has a polished or high gloss finish. With many styles to choose from in forever versatile marble, youâll appreciate the unique style of this tile.