Marble is generally soft in physical properties, which is relative to granite. In interior decoration, marble countertops, window sills, indoor floors, etc. are suitable for use in marble. Marble is the trade name, not a petrological definition. Marble is a major category of natural architectural decorative stone. It is generally referred to as a metamorphic or undeformed carbonate rock with decorative functions that can be processed into building stone or crafts. It is named after the stone with beautiful color and pattern produced by Dang Cangshan, Dali City, Yunnan Province, China. Marble refers to marble, limestone, dolomite, and skarn and marble formed by different alterations of carbonate rocks.