The grave marker for my Dad was obviously granite, not marble as I had thought. Being there since 1985, I thought surely it would have been marble. Couldn't tell because of the condition. However this is Stain Solver's results.
The cemetery is a hard place to take a good picture because of the sun shining through the trees and leaves blowing around.
You have my permission to add this use to your line up of "Save More Stuff."