Marble is a beautiful stone most popularly used in building materials and sculptures. It comes in a variety of colors, including many dark shades of green, blue, black and brown. Dark marble sinks make a beautiful addition to any kitchen, but they will show water stains very easily due to the contrast of the dark marble and the light white or gray water marks. A few common household items will get rid of water stains from dark marble sinks.

1
Sprinkle baking soda onto the water stains in the marble. A natural disinfectant that fights germs and stains, baking soda won't damage the marble.

2
Moisten a soft cloth with water, and rub the water stains until they come out.

3
Rinse the sink with water, and dry it with a soft cloth.