Dear Jeryn:
Without actually seeing your countertop it's hard to tell if it would be possible to lighten up the darker areas; but if you like the darker color of the darker areas, you could even everything out by applying a good-quality stone color-enhancer resistant to acidic substances like MB-6.
Before making any decision, give it a try with plain water: wet you countertop all over and see if the color becomes uniform. Whatever you see, is what you would be getting permanently with a color-enhancer.
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,
Mauri
Article ID: 1169
Created On: Sun, Feb 10, 2008 at 10:08 AM
Last Updated On: Sun, Feb 10, 2008 at 12:00 AM
Authored by: Maurizio Bertoli [mail@mbstone.com]
Online URL: https://marblecleaning.org/knowledgebase/article.php?id=1169