If after trying to remove the stain you find that the stain is caused by interior rust you will need to have a professional replace the marble.
Clean rust off marble shower.
You will need the following items 1.
Though there are a number of rust removing poultices and cleaners on the market the majority of rust stains on marble are not removable.
It is not possible to remove rust stains inside of the stone.
Marble is a porous material as is our skin and like our skin when we have a wound making a poultice to draw the stain out of your marble works in just the same way making a poultice to draw out infection in a wound would.
Rust stains can usually be removed with a poultice or a non acidic rust remover.
It is a paste that is typically the consistency of peanut butter that is applied to the stained area.
Rubber gloves optional or if you have sensitive hands.
Rubber gloves iron out powdered version distilled water plastic wrap tape a plastic scraper a cloth.
Pour lemon juice or undiluted white vinegar directly on the rust and stains on the shower floor.
Unfortunately rust stains are the most difficult of stains to remove from marble.
Water in a spray bottle 4.
Cover the stain completely.
Steps for removing rust from marble.
Rust stain remover 6.
This poultice will have 6 percent hydrogen peroxide.
Allow the liquid to sit for two to three hours.
Baking soda vinegar review sprinkle the baking soda onto the surface pour vinegar onto the baking soda gently scrub in a circular motion rinse and repeat as needed.
It is then covered in plastic wrap and left to sit for 24 to 48 hours before removing.
Some paper towels 3.
Be careful if you are removing a stain from darker colored marble as hydrogen peroxide can cause the marble to lighten.