Pearl with a mother of pearl bead center. In the cultured pearl industry, the resources used to create a mistaken all nacre baroque pearl is a drain on the production of round cultured pearls. Therefore, they are trying to improve culturing technique so that keshi pearls do not occur. All nacre pearls may one day be limited to natural found pearls. Today many "keshi" pearls are actually intentional, with post-harvest shells returned to the water to regenerate a pearl in the existing pearl sac. Tahitian pearls, frequently referred to as black pearls, are highly valued because of their rarity; the culturing
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