Do not use abrasive products or acidic cleaners as this can damage your marble. If you're unsure about the contents of a cleaner you want to use, test it by putting a few drops first on a small area to see how the marble will react. Also, some cleaners contain solvents that are flammable, so care should be taken when using such products. Never use them in closed areas or anywhere with an open flame as they could easily catch fire.