pearl

Pearl is a hard object produced within the soft tissues (especially coats) of mollusks live. Just like his shell, pearls consisting of calcium carbonate in crystalline form that has been deposited in concentric layers. The ideal pearl is perfectly round and smooth shape, but there are also various other forms. The best quality natural pearls have been highly valued as gemstones and objects of beauty for centuries, and therefore, the word "pearl" has become a metaphor for something very rare, good, admirable, and valuable.Precious pearls found in the wild, but the quantity is very rare. Cultured pearls or pearl oysters originating from a majority of pearls sold on the market. Sea pearls valued higher than freshwater pearls. Are sold at cheap prices is fake pearls, but the quality is usually bad. In general, imitation pearls can be easily distinguished from genuine pearls. Pearls are many cultivated for use as jewelry. But in the past, pearls are also used as decoration on fancy clothes. Pearls can also be crushed and used in cosmetics, medicines, or in the paint formula.Pearls are considered quality is almost always a colorful and resembles mother of pearl, like a leather interior that produces them. However, almost all types of shelled molluscs can produce pearls are a little less bright or less spherical shaped like a ball. Although they may also legitimately be called a "pearl" by Gemology laboratory and also under the rules of the U.S. Federal Trade Commission and formed the same way, most of them worthless, except as antiques.Almost all shelled mollusks can produce several types of pearls, through natural processes, when a microscopic object trapped in the mollusk mantle folds, but most of the pearls are not valued as a gemstone.A natural pearl is formed without any human intervention at all, in the wild, and very rare.Approximately hundreds of pearl oysters to be collected and opened, and thus killed, only to discover one wild pearl, and for centuries it was the only way to get pearls. This is the main reason why pearls including very valuable in the past. Cultured pearls, on the other hand, is one type of pearl that is formed by involving humans, in a pearl farm.