Silver Portoro is a kind of natural stone found in China. It is black in color with silver veining over it. This type of marble is unbreakable and easy to fit. It is smooth in texture and is available in different sizes. Silver Portoro marble is used for monuments, mosaic, pool capping, flooring, counter-tops, fountains, stairs and various interior and exterior designing projects. Due to its original beauty it is also used for the manufacturing of various decorative items like sculptures, vases and luxurious fire places etc.