LukeLe696

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於 2013年5月11日 (六) 10:32 由 LukeLe696 (對話 | 貢獻) 所做的修訂 (新页面: Do you like black pearls? I basically love them. Why? Nicely, really black pearls are very rare. Black pearls are produced from black-lipped oyster Pinctada margaritifera. It indicates th...)

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Do you like black pearls? I basically love them. Why? Nicely, really black pearls are very rare. Black pearls are produced from black-lipped oyster Pinctada margaritifera. It indicates that Pinctada is genus and margaritifera is species. Black pearls are developed by gigantic blackclipped oysters, which are scientifically named as pinctada margaritafera. This type of oysters can only be discovered if one would dive at least 40 meters under sea and as deep as 130 feet.

Though generally named "Tahitian" pearls, Black pearls are in fact grey to lighter or darker degrees. But, in addition, Black pearls have the special potential to display a selection of colours at the same time, shimmering about their surfaces in varying shades - colours such as Peacock and Green. Black pearls are not really black, but quite dark gray, with overtones such as blue, green or purple. For centuries, black pearls had been prized for their rarity most pearls are white, cream-colored or a very pale shade such as pink. Black pearls are made by black-lipped oysters that live in the Indian Oceans and the French Polynesian. They have an typical size of around eight to 17 millimeters and are the only pearls that come in a dark color naturally.

Black pearls are fairly rare compared to white pearls. This undoubtedly benefits in the expensiveness of the black pearls and thus tends to make them a collector's item. So locating the excellent black pearl is fairly a challenge.

So as you can see currently black pearls are fairly uncommon, have a stunning luster distinctive to themselves and make stunning heirloom good quality jewelry. For example, black pearls are cultivated in the black-lipped oyster since other oysters do not make pearls of the identical sort. Even though pearl farmers know the black-lipped oyster is important to the cultivation of Tahitian black pearls, they never know but how to regularly make it make a particular color. Nowadays, all-natural black pearls are quite rare. They are usually located in lagoons covering dormant volcanoes, which release mineral salts.

For a lot of of these causes natural black pearls are rarer than white pearls, and black pearls from the Gulf of California have been valued considering that the Spanish arrived in the New World.

Cultured black pearls are also produced in the Gulf of California and in Tahiti. Long deemed "mourning jewels" for royalty, black pearls are now the hottest style ticket in Europe and the United States. Considerably bigger than Akoya pearls, black pearls are component of the large group of South Sea pearls, which includes numerous varieties of colored pearls produced outside Japan.

It is important not to forget that black pearls are also superior in colour and quality to the freshwater white pearls. Japanese pearls are planet-renowned and the ideal in the world.

The colors are artificially infused by a therapy recognized as dyeing, or by subjecting the pearls to irradiation. These treated colors are usually straightforward to spot by a educated observer who may peer down the drill hole seeking for concentrations of color, which indicates the presence of dye, or a darkened pearl nucleus, which indicates radiation treatment. division