pearl jewelry
Nature shows us the finished product, an ecological gem of great beauty.
Natural pearls.
Everyone knows that pearls are found in the oysters, but not the order of oysters in a fine restaurant, there are many other species of oysters. 1. oysters living in the ocean of salt water.
2. mussels and oysters that live in freshwater lakes and rivers.
The body of an oyster is soft and vulnerable, and then `s strong shell. Within the shell of the oyster secretes a nacreous layer, which provides a smooth surface for the oyster. The natural response is to cover this intrusion of a layer of nacre of the pearl, the same substance that forms the pearl oyster shells good at.
Oysters live in oyster beds on the bottom of the sea and must be brought to the surface by divers, only a small proportion of oysters with pearls. Traditionally found in the Red Sea, Persian Gulf and Gulf of Mannar on the northwestern coast of Sri Lanka. Other pearls are fishing, the northwest coast of Australia, the south coast of Myanmar, the Sulu Sea, off the coast of New Guinea and Borneo, the Gulf of Mexico and the Gulf of California, the coast of Venezuela and Tahiti.
Freshwater Pearl rivers and rivers of the United Kingdom in the U.S.
Today many of these natural pearl fisheries have been exhausted or difficult and dangerous task of pearls is no longer attractive for local people.
Cultured Pearls
The supply of pearls was becoming scarce in the 1920 `s when cultured pearls began to appear on the market. In 1921, after many years of experimentation a scientist and Mikimoto Japanese businessman has begun shipping its pearls. This was the first spherical cultured pearls appeared.
Mikimoto was not the inventor of the process, many hundreds of years ago, the Chinese had discovered that objects placed on oyster shells become covered with beads. They put small metal statues of Buddha in oysters and oyster them then gently covered with nacre to produce beautiful little ornaments.
The Japanese have developed this technique requires many years to produce perfectly spherical pearls. Part of the oyster called the mantle contains cells that secrete calcium carbonate crystal, this is what you are made of pearls. A small mantle cavity is cut from a live oyster and a mother of pearl within the same account. The incision is closed with a ligature, the antiseptic process is treated before the oyster is returned to the sea. When oysters are called the mother of pearl bead is to be coated with layers of nacre of the pearl as a natural pearl.
In essence this means that the pearls are pearls mother pulls them, with a variable thickness of layers of nacre around the pearl. While natural pearls are composed entirely of concentric layers of nacre of the pearl.