Wife used steel wool(Jeez) to try to get a mark off a marble countertop, now it has a 2" circle with no shine. How can I restore the original shine? Would extra fine pumice do it? Or rottenstone? Jeweler's rouge on a cloth buffing wheel? Don't have any marble to experiment on so do not want to make it worse by trying different things that won't work right.

Thanks for an informed answer.