I am in a mess. I glued a piece of highly mineralized mammoth tusk from Florida and I used too much superglue. So, I panicked and started rubbing it off with a paper towel and then proceeded to wash it off with water. Stupid me. Washing it off with water caused a white ring to appear around the piece I glued on. Acetone removes superglue. But, I don't know if will hurt the fossil. Would careful/small application of nail-polish remover be safe? Thanks-