This happens fairly regularly with this stone. I have seen it numerous times in Colorado. Options are that it could have been the adhesive they used or it could be the resin interacting with light. The only time I was successful with something similar was an extensive use of acetone as a poultice. Other times, no progress at all. Obviously, until the cause is identified, the response is haphazard. Is there anyway to speak with the fabricator or installer? find out what they used.

Good luck.

On Mon, Jul 28, 2008 at 11:26 AM, StonePro Solutions <admin@stoneprosolutions.com> wrote:

Hi All

I am forwarding this question from Don Kasch... He's one of our Partners. Feel free to call him if you want.

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I have a Jurassic Gold Granite Counter top that has a black stain migrating in from the edge around the sink hole and along the seam. the customer doesn't think the counters were ever sealed and wasn't told to do so. She has been cleaning with a organic dish cleaner, there is no etching on the surface but the edges have this dark stain migrating in from the edge not the top. attached are a couple of pictures that show the problem. hopefully some one can help find solution for the problem. Thank you for the help.
Don

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Don Kasch
Floor Restoration Specialists
floorrestorationspecialists.com
801.358.0423

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Don Semi
Granite & Marble Restoration
Dedicated to the Preservation of Fine Surfaces
don@restoremarbleandgranite.com