my bathroom granite countertop has what looks like an oil stain. Since it is in the bathroom it would have to be some kind of cosmetic oil found in a womans product (I think) We've tried a vinegar soultion first diluted and then straight. It worked a little but not completely. The granite is very porous (sp??), even water spots it but they quickly evaporates. Can you supply a sure fire remedy or even a not so sure fire remedy?