|MadSci Network: Earth Sciences|
Sorry I did not receive your original message. To answer your question: YES it can be stored safely. During time you are not handling/displaying you may want to keep it in a thin sheet of lead foil. be careful handling the lead foil as it oxidizes and creates lead contamination that you could get on your hands and then transfer to your mouth by handling food etc. (lead is not radioactive but it is a heavy metal) You may want to get an inexpensive geiger counter to keep an "eye" on things. You can get these through E-bay. Regards,
Try the links in the MadSci Library for more information on Earth Sciences.