Cultured pearl Cultured pearl A cultured pearl is a pearl created by an oyster farmer under controlled conditions. Cultured pearls can be farmed using two very different groups of bivalve mollusk: the freshwater river mussels, and the saltwater pearl oysters. A pearl is formed when the mantle tissue is injured by a parasite, an attack of a fish or another event that damages the external fragile rim of the shell of a mollusk shell bivalve or gastropod. In response, the mantle tissue of the mollusk secretes nacre into the pearl sac, a cyst that forms during the healing process. Chemically speaking, this
The Pearl (novel) The doctor also visits, and although Coyotito seems to be healing, the doctor insists that Coyotito still faces danger and treats him. Kino tells the doctor that he will pay him once he sells his pearl, and the doctor attempts to discern where the pearl is located (Kino had buried it in the corner of his hut). That night, a thief attempts to break into Kino's hut, but Kino drives him away. Juana tells Kino that the pearl will destroy them, but Kino insists that the pearl is their one chance and that tomorrow they will sell it. The next