Pearl divers or makers will create a small opening in the oyster's shells in order to insert mantle tissue from other oysters. The insertion will cause the freshwater oyster to start producing nacre. Pearl manufacturers can guarantee the outcome or quality of their products by taking control of factors like water temperature, the oyster's health, and so forth.
History of Freshwater Pearls
Japan used to be the dominant figure in the cultured pearl industry. Having met success in their attempts in culturing pearls from saltwater mussels, they decided to conduct the same experiments with freshwater mussels from Lake Biwa. Their attempt was successful as well, and people were delighted to see new colors, colors that were never produced in saltwater pearls. As such, cultured freshwater pearls of Japan became so popular that all cultured freshwater pearls were referred to as Biwas in those days regardless of their origin.
Unfortunately, pollution caused great damage to Biwa cultured pearl production, and it was during this time that a new dominant figure emerged in the market: China. The country was blessed with numerous natural resources that the space-challenged Japan didn't have: acres and acres of open land, innumerable lakes and other water bodies, and thousands and thousands of available human resources willing to work for less than minimum wages.
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Orignal From: Pearl divers or makers will
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