The Sahara Noir marble, of Tunisian origin, is characterized by a much brighter and more vivid black background than the Nero Marquinia marble and the Nero Assoluto granite. But the peculiarity of the Sahara Noir are, without a shadow of a doubt, its veins. We are used to seeing marble surfaces with cloudy veins or with more or less thick streaks swaying from one side of the slabs to the other without a precise reason. The stripes in the Sahara Noir marble seem to have been drawn with a ruler, in some slabs the white and gold-colored veins intersect perfectly perpendicularly.