Dear Deborah:
Just because it is in a stone, it doesn't mean that I know much on how to remove that kind of contaminant. It's more the field of expertise of someone specialized at removing odors, wouldn't you say?
For all I know every vet office sells products designed to remove pets' urine odor. If it works, say, on carpet, it should work on stone, as well. Just soak a “pillow” of Bounty Paper towel (8-fold or so) with the stuff, apply it onto the contaminated area, cover it with some plastic wrap and then tape it down. Leave it there for a couple of days, remove the plastic, and then let the paper towel dry completely before removing it.
Whether the products works or not, I don't know, but it should perform as advertised, don't you think?…
If the product has some pH activity it may damage the surface of the travertine and you may need professional help to repair it.
But let's take one step at a time and let's not put a cast on our arm before breaking it: priority one is to get rid of the offending smell.
May I ask you now to please read and e-sign our Statement of Purpose at:
http://www.marblecleaning.org/purpose.htm?
Ciao and good luck,
Maurizio Bertoli
Article ID: 850
Created On: Sat, Dec 1, 2007 at 3:05 AM
Last Updated On: Sat, Dec 1, 2007 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=850