These products (marble, travertine and natural stones) are corrosive chemicals such as acid, salt spirit, porous, lime remover and so on. Keep it away.
Do not rub your marble basins with wire.
Natural stones do not want to care for many years. The best way to protect your natural stone basins for many years is to keep water on after each use and to make general cleaning with only arab soap and water.
Black shiny marble sinks are more scratchy than others. We recommend using a microfiber cloth for cleaning.