Distinguished for its differing vein patterns, extensive lifespan and overall beauty, marble is a material used in countertops, flooring and furniture. Although marble surfaces are highly impervious to breakage, cracks and scratches, they can become etched. Etches are dull, white spots on marble caused by acidic foods and liquids such as tomatoes, cola products and citrus juices. Citrus-based cleaning products can also leave etch marks on marble. Thoroughly remove etch marks from marble to restore the natural stone's original appearance.
Drench a cloth with warm water. Pour two drops of stone soap onto the drenched cloth. Rub the soapy cloth over the etched marble surface to clean off any abrasive particles.
Douse another cloth with fresh water. Wipe the cloth over the marble to rinse off the stone soap and grit. Do not dry the marble.
Sprinkle 1 tsp of marble polishing powder onto the etch mark. Spread the powder evenly over the dull area.
Rub the damp cloth over the marble in circular movements until the polishing powder and etch mark dissolve.
Buff the surface with a thick, soft towel until the marble is shiny and dry.
Have a certified stone restorer refinish the marble if the polish compound doesn't remove the etch mark completely. Polish the marble with stone wax to add more gloss.