Hi, I have a full vanity onyx sink. It was made with swirls of mauve, gray and cream to match our floor 20 yrs ago when we built our house. It still looks great except for cracks around the drain which are black. They started forming about a yr ago. Is there anyway to "fix" these or at least take away the black lines?

Hi Jade- A bona fide stone refinisher will be able to repair and clean the cracks in the sink.

Find one at www.stoneandtilepros.com

Stu Rosen