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
Pearl Harbor and the Explosions Pearl Harbor and the Explosions Pearl Harbor and the Explosions was a musical act from San Francisco, California. Forming in 1978, the new wave band had limited success in the late 1970s and early 1980s, with their debut single, "Drivin'", reaching the lower end of the American top 40 charts in 1980. That same year, they released a self-titled LP which included the song "Shut Up and Dance", which received considerable airplay, particularly in the Bay Area. The vocalist, Pearl E. Gates (also known as "Pearl Harbor", and later "Pearl Harbour" (British and Canadian spelling), would eventually marry Clash bassist