Sometimes shaped like small Buddhas, lead particles placed in the shell produced mother-of-pearl Buddhas. Using Sung dynasty methods, full scale pearl cultivation industries were established in Japan over 100 years ago.
九十多年前，日本有位名叫御木吉本幸的商人，借用中國的老法子，將不同物質的小粒，置入蚌蛤內，經多年實驗，終於研究出穩定的養珠法。