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
Pirates of the Caribbean: The Curse of the Black Pearl Jack Sparrow comes to Port Royal to commandeer a ship, and rescues Elizabeth. Norrington identifies Jack as a pirate, and a chase ensues. Jack encounters Will, now a blacksmith and swordsman. They duel, and Jack is captured and imprisoned. That night, the "Black Pearl" attacks Port Royal in search of the medallion. The crew of the "Pearl" capture Elizabeth, taking her to meet Captain Barbossa. Elizabeth claims her last name is Turner to conceal her identity as the governor's daughter. She learns that her medallion is one of the gold pieces that Barbossa's crew took from a treasure of Hernán