OK, here goes...we moved into my parents house when they passed away. House turned 50 on JAN 2012. Some minor repairs here and there...I'm ok with it. My wife decided to help out and used some lime scale foam cleaner on the granite deep sink in the laundry room...the whole inside is white bleached out. I tried to use mineral oil on a rag to bring back the granite color but it's not working...thoughts???