The pearl's English name is pearl,which is evolved from the Latin pernulo.A long ago,they discover white colored halo of light Pearl When primitive humans at the beach feeding on food. And Attracted by its Magnificent and crystal.Since then,pearl become human favourite jewelry and spread so far.(wholesale fashion jewelry)Pearl is a kind of ancient and organic jewelry,which is made in soft bodies of Pearl shellfish, and mother of pearl shell.Generated carbon Calcium minerals (aragonite) beads because of Endocrine role,  which is made up with a collection of a large number of tiny crystals  aragonite.The pearl Chemical composition is:caco391.6%,h2o and organic is each 4％Other is 0.4%.The shape of pearl have many kinds:round,pear shape,egg shape,tears (& jewelry)(jewelry & watches)shape,buttons shape and so on.The rond shape is best among them.The colours of them have :white,Pink, yellow, light green Color, light blue, brown, lavender, black, etc.The white is key,which is not Homogeneous body,which is with typical pearl luster, and with Soft sheen with a rainbow hal,from transparent to translucent.The Refractive is 1.530－1.686,Birefringence is 0.156,non-dispersion phenomenon,Hardness is 2.5－4.5.The density of natural freshwater is 2.66－2.78g/cm3.There is differance by different origins,toughnessis good.The pearl show white, Light yellow, light green, blue fluorescentin the short-wave ultraviolet light.Black pearl light red fluorescence emission;show Yellowish-white fluorescent Under x-ray,show Bubbling with HCl.(watches & jewelry)(women's socks)The pearl is constantly loved by people because of Warm, elegant, magnificent.And is praise to Jewelry Queen.Pearl of the components is Calcium with organic,Poor chemical stability,can be dissolved in acid and alkali.It should not contact with perfume, oil, salt, alcohol, hair cream, vinegar, and dirt.And can not get in touch with bananas, water and other organic solvents even more.Human sweat more in summer,should not girl with a Pearl Necklace too. When it is not in use, gently washing it with high neutralsoap or detergent,then dry it. It should be not exposured or baked in the sun. When collection can not be put together with the mothball.  (fashion jewelry)(jewelry Wholesale)

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