Coke on Travertine Counter

Hi Maurizio, I sent you a question a few weeks ago and really appreciated your response...but I need help once more. A contractor placed a can of coke on our unsealed new travertine countertop. We have 3 rings about 1/4 the size of a coke can in our travertine. Is there anything we can do (or have done) to try and remove it? Thanks, Pat

 

Dear Pat:

Even if that top had been sealed (make believe sealed, that is!... :-)) it would have not made one iota of difference.

The phosphoric acid contained in most sodas etched the surface of the stone on contact.