What causes rust on marble? If/when the marble is saturated with water, these iron deposits hidden inside the stone will oxidize. Then, as the water moves through the stone to the surface, it carries the rust with it resulting in yellow-brown-orange stains on the marble.
What is the best stain remover for marble? For most organic food stains, the Marble Institute recommends cleaning with a solution of 12% hydrogen peroxide and a few drops of ammonia; if you spilled anything oil-based, like a vinaigrette, and the stain has set, attack it (gently) with a liquid cleanser that contains “household detergent, mineral spirits, or
How do you remove deep stains from marble? Liquid Soap and Flour
Place a cup of unbleached flour in a bowl and add three tablespoons of mild liquid soap. Add enough water to make a thick paste, covering the stain to the point of overlapping. Cover the paste with plastic wrap for 24 hours to lift the stain and then wash with soapy water.
Why is my marble orange? If the marble becomes wet long enough to allow moisture to leach through the marble, the iron deposits will oxidize creating yellow/orange/brown stains. Usually it this process occurs over a longer period, but if enough moisture it could happen quickly and these tiles are thin.