, jade is believed to have special properties. For centuries, green jade has been associated with rainwater, and plants, including crops such as corn. China
Among its many art forms and art products,
China is famous for its jade, just as is famous for ikebana vases and the art of ikebana. Japan
The bi disk is one of the oldest jade forms. The bi jade form is round and flat, and has a hole in the center. Some bi jade forms have carving son them for decoration, while others are simple and have no adorning sculptures. Dragons are one of the popular sculptures found on bi disks.