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
Hymn of the Pearl has been preserved and especially treasured in Manichaeism - a version of it appears as part of a north-African Manichaean Psalm book is written in Coptic, called the Psalms of Thomas. The Hymn of the Pearl has also been admired by Orthodox Christian thinkers and members of the Church of Jesus Christ of Latter-Day Saints (Mormons). Please note that wikisource contains the . The "Hymn of the Pearl" is read as part of the narration in Terrence Malick's 2015 film "Knight of Cups". The film deals with themes of pain, loss of direction and transcendence, which are part of the