The black rain flower stone is through the natural mineral source mining, the screening, the water washing processing becomes. The black rain flower stone is spherical in appearance, smooth in surface, high in mechanical strength, moderate in density and stable in chemical property. The main ingredient is silicon dioxide, free of dirt and other organic impurities. Black rain flower stone is widely used in landscape engineering, pavement of square landscape, construction of beautiful rural courtyard, massage footpath of Villa Garden, etc. , construction methods are scattered shop, Mosaic Mosaic, Trench Cover, fountain pool underwater shop floor and so on. Black Rain Flower Stone non-toxic, tasteless, non-decolorization. The quality is hard, the color is bright and simple, the black rain flower stone has the compression resistance, the abrasion resistance corrosion resistance natural stone characteristic.