I suppose again I am different lol When I was originally told about cleansing crystals and stones, I wasn't told to use other stones or any of the other methods I read about in these posts. I was told to hold it and envision a waterfall falling onto it and through it. That the waterfall would take any "negative" or "bad" energy or anything else that was attached to it that should not be there.
I have to admit, this has worked for me in the little work I do do with crystals, as I have never had a problem. I suppose what it comes down to is what you have trained yourself to do and what they allow you to do to them. When I charge objects (not stones and crystals) I can easily discharge it just by placing my thumb on it, because I trained my energy to do just that.
