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
Bruce Pearl November 20, 2010, the SEC ordered Pearl to sit out Tennessee's first eight SEC games. After finding out about additional NCAA violations, as well as a violation of the school's substance abuse policy by a player, Tennessee fired Pearl on March 21, 2011—three days after the Vols' blowout loss to Michigan. On August 23, 2011, Pearl was given a three-year show-cause penalty for lying to the NCAA, effective until August 23, 2014. This meant that the sanctions imposed on Pearl would remain in force if he was hired by an NCAA member school within that period. Specifically, he was prohibited