Wow now I don't know if I am ready to list it...lol. I don't know if the stone is real, or how to tell. I found some sites on how to determine if it is real or not, but I am second guessing myself now. I assume it is glass also, but now I want to know for sure.
I think you are correct about the holder, I believe it is stamped brass. I did not see any markings on the shaft either.