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Dołączył: 29 Paź 2010
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Wysłany: Wto 11:29, 09 Lis 2010 Temat postu: ghd styler The Beauty of Pearls_1813 |
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The Beauty of Pearls
Pearls are different from other gemstones which are produced inside the Earths deeps. Pearls are created naturally by living creatures which are mollusks. Mollusks have soft whole body inside and a hard outside shell. Mollusks live as freshwater habitats or main land. History about pearls dated back from 530 million years ago. An average of 100,[link widoczny dla zalogowanych],000 living mollusks abound our world today. Every mollusk which produces shell can make pearls. However,[link widoczny dla zalogowanych], natural pearls are uncommon and perhaps can be found for one in every ten thousand animals. The pearl industry has begun since 20th century and has developed certain methods to induce pearl production. Generally,[link widoczny dla zalogowanych], pearls can be classified into two categories the natural and cultured pearls. Natural pearls are those produced when an intruder enters into the shell of any mollusks enabling it to grow into nacre around the shells particles. Natural Pearls are very rare and thus quite expensive. Cultured Pearls are pearls also growing inside the mollusk but with interference from human. An object is inserted inside the shell and will be coated with nacre layers. The thicker the nacre coating the more durable the pearl will be. The coating of nacre and its depth will depend on the mollusk type,[link widoczny dla zalogowanych], the water and how long a thing lives in the mollusks. It is quite evident that many pearls are produced these days. Men have learned how to culture these gems. One process is putting shells beads inside oysters and returning it to the water to let it produced more. Cultured pearls are produced mostly in Japan. In South Pacific where there are warmer waters, larger oysters are These gems are cherished and symbolize perfection and purity. Pearls have occurred naturally in various shapes, colors and sizes. Pearls classification with regards to its shapes is as follows:1.Spherical pearls that are round and the most pleasing shape; rounder pearls are more expensive.2.Baroque pearls which have irregular shapes. These pearls are the cheapest of all kinds but also beautiful and unique.3.Symmetrical pearls which can be pear in shape and those shapes with symmetry but not necessarily round.Pearls can further be classified to different types which are generally from the country where they are produced. Some of the types are:1.Black pearls which are produced from black oysters. Found in South Sea. Some pearls can be made black by using dyes but the natural colors are dark gray or dark green.2.Akoya pearls are those representing the most common pearls. When you heard of pearl, Akoya pearl is the image which you are trying to describe. These kinds of pearls are mostly cultured in Japan and the oysters producing them are palm sized thus pearls in them are not those large. Only about 2mm to 10mm.3.South sea pearls are those from white oysters and which is the largest. They are silvery grey in color and measures 15mm. These pearls are very expensive and very rare.
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