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
Pearl Thompson Thompson is also featured on the album "Callus" by Gonjasufi, released in August 2016. Thompson is noted for being reclusive and private about his personal life, and is primarily now dedicated to painting. Pearl Thompson Pearl Thompson (born Paul Stephen Thompson on 8 November 1957 in Surrey), previously known as Porl Thompson, is an English musician best known for being a member of The Cure. Though friends had long used the name "Pearl", Thompson legally changed his first name to the female name "Pearl" in 2015. Thompson was part of the original lineup of The Cure (then known as Easy