07/29/2026
If you’ve cleaned the same spot three times and it still looks dull, cloudy, or different from the surrounding stone, the cleaner may not be the problem.
On marble, what looks like residue can actually be a change in the surface itself. Etching, wear, and changes in the finish affect how light reflects off the stone, which is why an area can look “dirty” even when it’s perfectly clean.
And reaching for a stronger cleaner isn’t necessarily the answer. Depending on the product, it can make matters worse.
Knowing whether you’re looking at dirt, staining, etching, or finish wear changes what should happen next.
Sometimes the first step in caring for natural stone is simply knowing what you’re looking at.