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 (novel) The film was also released by RKO in 1947 as a co-promotion with the book. "The Pearl" was loosely adapted in 2001 for a film directed by Alfredo Zacharias and starring Lukas Haas and Richard Harris which was released directly to video in 2005. Family-One of the major themes in the novel is family. Throughout the novel, the plot discusses how the family lives before and after the pearl. It is constantly the focus of the plot and many of the decisions are based on what would be best for the family. For example, the first thing that Kino desires