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
The Pearl Report The Pearl Report The Pearl Report is a public affairs programme aired on TVB Pearl from 1 April 1988 to 25 June 2018. The show mainly deals with current affairs in Hong Kong, although there are also stories concerning wider regional and international issues, often produced abroad. Locations covered include the United Kingdom, the United States, Australia, Germany, Russia, Malaysia, Canada, Oman, Vietnam, Thailand, Japan, the Philippines, the United Arab Emirates and all different parts of China. A broad spectrum of topic areas is covered on the Pearl Report, including political, social, health, education, human rights, economic and sport-related issues.