Marble Nero Marquina Mosaics Tiles 12"x12"x3/8" sheet, polished. 1,Marble Mosaics2,Size: 305x305x10m3,Marble: Chia Nero Marquina4, Polished and Honed FinishWe can also fabricate the finish mosaics based on customs designs, including drawings, photos, stone colors and size specification.