The biggest function of crystal is decoration. As an ore, it has energy, magnetic field and radiation. Some crystals have positive energy and some have negative energy. The bigger the crystal, the greater the energy. Even the best feng shui master is not sure whether a crystal has positive energy or negative energy. Even the crystal lucky enough to get positive energy may have a bad effect because it collides with the wearer's energy. This is simply an antique. If you don't find a very, very powerful consultant, don't dress casually. In addition, on the Internet and in bookstores, 99.99% of all the knowledge about crystal shipment is written by jewelers, not by scientists, doctors or experts. Real experts don't recommend this shipping method.