Then apply plastic wrap over the top.
You tube remove stains from marble table.
The best way to address mold stains is to use a product that is specifically designed for removing mold and mildew stains on marble such as this one.
Ink stains as with organic stains you can use a poultice made with 6 percent hydrogen peroxide to remove any ink stains.
Mix flour into soapy water to make a paste then slather the paste onto your countertop.
We used poultice stain remover it worked very well.