Nero Portoro is a authentic black marble with varying degrees of gold veining throughout sedimentary rock quarried in Italy. This stone is especially good for Exterior - Interior wall and floor applications, countertops, mosaic, fountains, pool and wall cappi and other design projects. It also called Black Portoro,Portoto Nero Giallo,Portoro Nero,Portoro Macchia Larga,Nero Portoro Vena Larga,Nero Portoro Macchia Larga,Portoro Macchia Grande,Portoro Macchia Oro,Nero Portoro Vena Fine,Portoro…