If you spilled anything oil based like a vinaigrette.
Acetone on marble floors.
Examples include milk peanut butter or hand lotions.
Nail polish remover is usually acetone which does not damage or stain marble and some other products which can damage marble.
Dry cleaning sand dirt and other grit elements are the greatest enemy of marble floors and other surfaces because they may scratch the surface.
So i m assuming that the nail polish remover etched the marble unless there is some type of nail polish remover product that contains a colored dye that could stain.
Found in most nail polish removers acetone has similar cleaning properties to hydrogen peroxide but with the added bonus that it doesn t discolor dark marble.
Most household messes on marble are cleaned up with water and a mild detergent but different types of stains may require specific types of cleansers including acetone.
Organic stains are typically noticed once the item that makes the stain.
Be sure to wipe the area with a clean damp cloth afterward.
If you discover a stain on your black marble clean it with a cotton ball dipped in acetone.
They can be removed with a marble poultice made with acetone or mineral spirits.
Use a cotton swap dipped in acetone to gently work out stains and wash the area with plenty of plain water afterward.
Light brown to yellow in color.