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 V'ornn. The one thing they fear. They inflicted a punishing defeat upon the V'ornn fleet at Hellespennn 250 years previous, in revenge for the V'ornn invasion of their world 300 years prior to that. Their weapons utilize a Goron particle beam. The novels revolve around these items and the quest to find them. Van Lustbader has stated that due to the popularity of the Bourne Series, the Pearl Saga was put on hold. He says the series is expected to run to 6 or 7 novels. The Pearl Saga The Pearl Saga is the name of the incomplete series of