Yes Gary, I curious what problems you have encountered using CA on stone. I use it all the time to glue pieces together, glue it to wood, etc. No problem so far. Heat should not hurt it they use it in wood stoves. Fact I read where heat makes it turn harder, which would be a good thing after you are finished turning it.
I put res. wax on mine and it protects it from finger prints, stains and keeps it shinny. You have ot wax it every once and a while. I think any wax would help it. Clear kiwi shoe polish is suppose to be the same as res wax at a fraction of the cost. My shaving set is holding up real well. I've been using it.