For the oyster to secrete its pearl substance, a core must be grafted into the shell, a little ball of mother-of-pearl from shells in rivers in Mississippi, Tennessee and Ohio.
Keywords:
Patricio Estay, Mikimoto, Japan, pearl, jewels, King of Pearls, precisous stones, Kokichi, Ago Bay, oysters, nacre, Ise Bay, Shinmei river, Shima