Well thanks to all for the information. I did speak with a technical advisor from a chemical company and he states that it is Quarry Sap and it is a natural part of the stone. He also states that no chemical with change its appearance.
AC New Guy, also glad to see someone from the Lone Star State. E-mail me, I go to Houston on occasion. My e-mail is Daniel@mrpowerwash.us.
Thanks again for the advise and input,
Much appreciated :)
Daniel