Being natural stones, marble and granite have been blessed with remarkable characteristics that have captivated humans throughout the ages. Inherent in such natural products is a certain lack of predictability that architects and designers celebrate. Consumers who are less acquainted with the material expect the stone ordered to be identical to a picture or sample they were shown. Although sample stones are intended to be representative of the quarry’s product, the material quarried at one time may differ slightly in color and veining from the sample. Moreover, even a single marble or granite slab will possess a certain amount of color variation from one end to the other. Interior designers and architects have come to view this tendency of natural stone as an advantage. Slight irregularities can be pleasing, introducing an element of the natural into human-designed spaces, whether residential or commercial.