Some people do say that stones just get worn out and lose all their power, and they can't be recharged with the normal methods of sun, moon, water, and sound , etc. Then we are supposed to return them to the earth and bury them with a marker so we can find them again after a while. However, some are supposed to be so tired and un-rechargeable that we just have to give them up and return them to the earth permanently for someone in the distant future to find and use. But that is not going to happen here, as they will have to pry them out of my cold dead hands first.