This type is also used for flooring. This stone is part of the marble family. But why do you think it is named this way? It is called by its name because of its large crystal grains. And in this type, when it is hit, they make a Chinese sound. Crystal stone is mostly used as flooring for commercial units, offices, stairs, etc. One of the salient features of this sample is its resistance to water, its sound, resistance to any weather conditions (cold and heat), and its resistance to sunlight.