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
Palatinate Pearl Palatinate Pearl The Palatinate Pearl is a pearl, kept with, but distinct from the Crown Jewels of Bavaria. The pearl is unique insofar as it is one of only very few part black, part white pearls to occur naturally. The pearl is set between two diamond encrusted snakes, protruding from a bed of leaves, flanked by two flowers. While the exact origins of the pearl are unknown it first appears among the royal Crown Jewels of Bavaria, who were the ruling family of the Palatinate, which gaves its name to the pearl (and possibly its origin). Having traveled with its