For ink on light marble use bleach or hydrogen peroxide.
Cleaning marble with amonia and peroxide.
Materials that can be removed with peroxide include some inks from markers.
You can create a marble poultice using 6 hydrogen peroxide and a few drops of ammonia.
On dark marble use lacquer thinner or acetone.
2 mix 1 2 cup of ammonia with 1 gallon of warm water in a bucket.
A high strength hydrogen peroxide such as a 12 percent solution removes some types of stains from light colored marble.
If you spilled anything oil based like a vinaigrette.
For most organic food stains the marble institute recommends cleaning with a solution of 12 hydrogen peroxide and a few drops of ammonia.
Use a clean rag or microfiber towel and wipe down the surface and ensure that all lose dirt and grit is gone from the surface.
Such biological stains as algae can be cleaned with cup ammonia in 1 gal.
Mix 1 4 cup each of baking soda vinegar and ammonia and dilute it in eight cups of water.
Add more peroxide if needed for stain removal.
Spread the solution over the surface with a soft cloth.
Wipe the stains with this solution and leave on for 10 minutes.
Follow the above directions for removing rust stains from marble to effectively remove organic stains.
Sweep or vacuum your marble floors on a hard floor setting to remove any dirt or debris that can scratch the floor.
If you are cleaning marble floors then try using a duster or broom for this.
Follow the above directions for removing rust stains from marble to effectively remove organic stains.
Or try bleach or hydrogen peroxide.
Pour 1 2 cup of hydrogen peroxide into a gallon of warm water.