Normal wear and tear and the use of harsh chemical cleaners can cause marble to become dull. Polishing marble is an easy task that you can do as often as once a month to keep your marble looking lustrous. While you can find a variety of commercial products to polish your marble, you can also make your own chemical-free version with items you may already have in your own home.
Mix baking soda with water using a ratio of three tablespoons to one quart of water. Spray this mixture on the marble surface and wipe it with a dry rag. Allow the marble to dry for a minimum of three hours before moving to the next step.
Crush the chalk into powder. Dampen a sponge and dip it into the crushed chalk. Wipe the entire area with the chalk-covered sponge, applying more chalk when necessary. Rinse the chalk residue after applying.
Dry the marble surface with a chamois to ensure all residue is removed and you have a streak-free finish.
Maintain the shine of your marble by cleaning it daily with a dry cloth and by using a pH-neutral dishwashing liquid to clean larger spills and messes. You may also seal your marble which will prevent it from becoming dull for longer periods of time.