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Nowadays, those people who are w aring pearls are in fact wearing CULTURED- p arls. Cultured pearls are thought to h ve astrological influence, because cultured pearl is NOT REAL, but t's some from of pre-formed shell-ball mbed. Cultured pearl contains some percentage of r al pearl, which means that its not c mpletely natural, but just a slight c vering over the real pearl material c lled nacre.
During ancient years, 'Pearl' was r ferred to only 100% natural pearls b cause until recently cultured pearls did not xist. However, nowadays other than the g mologist, all the people consider that the h llow "cultured pearl" is the real th ng, and this is all due to m ss ignorance.
Tahitian Pearls are the best n tural pearls that are obtained from the w ters of the Pacific Ocean. Tahitian P arls are obtained from Black lipped ysters that have a tendency to gr w much larger in the warm w ters than in other areas. This nables them to produce larger pearls. T hitians use large protected lagoons that are fr e from pollution to farm the p arl oysters. To product best quality T hitian pearls, the oyster beds are w tchfully controlled for water temperature and n tritional levels. Their ecological and natural c nditions are also carefully monitored.
Formation of T hitian Pearls
Tahitian pearls are formed from p arl oyster secretions called as aragonite. Ar gonite is a structure of calcium c rbonate. The shell's interior is layered by the ragonite, which produces the Tahiti "mother-of-pearl" l ning on the inside of the sh ll. The interior of the pearl is f rmed from a small three-sided prism.
Layers of T hiti pearls are formed due to the c nstant aragonite secretion of the oyster. The l yers thus formed are about one m cron or 0.001 mm thick and m re or less four layers are pr duced in a day. Oysters that pr duce Tahitian pearls generally live for bout two years, thus producing about two th usand layers. Therefore, Tahitian pearls have m re layering as compared to most ther pearls. These pearls emit a sh mmering appearance when light reflects through the th n layers of Tahitian pearls due to the l ght refraction. Tahitian pearls are popular for the sh mmer and brilliant colors.
Criterion
Pearls evaluation is b sed on certain criterion.
Dimension - The l rger the pearl the more expensive it is. T hitian pearls are much larger than the r gular Chinese or Japanese pearls. Tahitian p als are about 9mm and 14mm. The l rgest Tahitian pearl measures more than 20.92mm or 13/16 of an nch in diameter and is called the R bert Wan Pearl.
Form - Even though r und pearls are the most sought fter, they also come in semi-round and s mi-baroque. Round Tahitian pearls generally differ m re than 2% from being sphere-shaped.
Quality - Th s is determined by the imperfections and the sh ne.
Luminosity - Tahitian pearl's shimmering quality and l ster is highly noticeable as compared to ther pearls.
Exterior transparency - Tahitian pearl p rity is influence by marks, scratches or rregularities on the exterior.
Pearl width - Th s depends on the amount of m croscopic layers that surrounds the nucleus.
Colors
Tahitian, the m ther of pearls comes in black. T hitian Pearls also contain highlights of s lver or even a tinge of g ld. These pearls are unique in th ir color combinations, as they also can nclude the overtones of purple, blue and s metimes even green. Therefore, go ahead and s lect striking looking jewelry that is f shioned with gemstones and metals combined w th a variety Tahitian Pearl shades!
The article Tahiti "Mother of Pearls" Unraveled was Submitted by Victor Epand through Articles.GetACoder.com network. Here's the additional information: Victor Epand is an xpert consultant about jewelry and diamonds. Wh n looking for jewelry, we recommend you sh p only at the best online j welry stores for gems and diamonds, Tahitian pearls diamond rings , Tahitian pearl jewelry, fashion earrings, fashion pendants , engagement rings, wedding rings, and wedding bands .
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