Its quality is delicate,strong and tough,the color is gorgeous,veins is clear,with all shapes and all sizes,with the pattern as if flood dragon dance in the wind.For his degree of hardness,high density,it absorbs water a rate almost to zero.There is no color change in water,And it is not easy to adhere to filth,not easily to scrap in the usage,this kind of material can be made as Mosaic,Stone carvings,floorings,fireplaces etc.