And here is a 2" Onionskin that needs some work, the only question is what kind of work. I thought maybe just enough polishing to make it shine and get rid of most of the scratches and nicks. But that would still leave the large unsightly flaw. So maybe reheating is the answer. None of the other damage is deep, and it looks like there is plenty of clear glass except it looks shallow at the other pontil.
(I may have asked about this a long time ago, but I've still not done anything with the marble.)