Dear Malinda:
Yes, there is something that can be done to repair it, and it's called professional stone restoration contractor.
Not only is the adhesive necessary hard to get (true epoxy, since it's outdoors – opposed to polyester glue), but it also must be mixed with some inert material, preferably marble powder.
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: 954
Created On: Sun, Dec 30, 2007 at 7:16 PM
Last Updated On: Sun, Dec 30, 2007 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=954