Cultured pearl is calcium carbonate and a fibrous protein called conchiolin. As the nacre builds up in layers of minute aragonite tablets, it fills the growing pearl sac and eventually forms a pearl. Natural pearls are formed by nature, more or less by chance. On the other hand, cultured pearls are human creations formed by inserting a tissue graft from a donor oyster, upon which a pearl sac forms, and the inner side precipitates calcium carbonate, in the form of nacre or "mother-of-pearl". The most popular and effective method for creating cultured pearls are made from the shells of freshwater river mussels
The Pearl Saga The Pearl Saga The Pearl Saga is the name of the incomplete series of science fiction / fantasy novels by Eric Van Lustbader. The series centers on Kundala, a planet conquered by the V'ornn, a race of aristocratic, militaristic humanoids; themselves ruled by the Gyrgon, a cabal of mysterious androgynous technomages. The main character is Riane, a prophesied redeemer known as the Dar Sala-at, born at both ends of the cosmos. Kundala is a planet with Five moons and Nine seas. The five dragons created Kundala under the direction of the Goddess Miia. The daemons constructed and shaped Kundala. When