The Porcelanosa Group has added to its range of marble-look products the Viola, Paonazzo Biondo, Taj Mahal and Orobico Dark series. The firm has been following an aesthetic line based on classic marble for years. The latest XTONE series features predominantly white, blue, caramel, black and burgundy tones, and comes in a larger format (61-by-129 inches, 59-by-118 inches, 47-by-98 inches and 47-by-47 inches). The series features added resistance to high temperature, humidity and UV rays.