Pearl jewelry is an ancient organic gems, pearls jewelry production in shellfish and shellfish, mollusks maxima in the body, as the role of the endocrine and generated with the mineral calcium carbonate beads, by a large number of small collection of crystal aragonite.

The chemical composition of pearl: caco391.6%, h2o the organic matter and 4%, other 0.4 percent. Pearl variety of shapes, round, pear-shaped, egg, teardrop-shaped, button-shaped and arbitrary, in order to better round. Non-homogeneous body. The color white, pink, yellow, light green, light blue, brown, lavender, black, to white-oriented. White streak. A typical pearl luster, soft and shiny halo with rainbow colors. Transparent to translucent. 1.530-1.686 refractive index, double refractive index 0.156. No dispersion phenomenon. Hardness 2.5-4.5. Natural freshwater pearls density for the general 2.66-2.78g/cm3, as a result of origin differ. No cleavage. Good toughness. In the short-wave ultraviolet light significantly pearl white, yellow, light green, fluorescent blue, black pearl hair red fluorescent light; x-ray under white fluorescent light yellow. Hydrochloric acid case of foaming.

Pearl to its warm, Yajie, magnificent, as has always loved people, known as Queen's jewelry. Pearl is an element that contains the mechanism of calcium carbonate, chemical stability of the difference can be dissolved in acid, alkali, not suitable for daily contact with perfume, oil, salt, alcohol, fat milk, vinegar and filth; even less contact with water, such as bananas Organic solvents; human sweat in the summer, should not be wearing a pearl necklace, and when they do not have to use high-neutral soap or detergent gently washed clean, then dry, not in the baking sun exposure, or; collectors when they can not be Camphor Ball Together, not on the long-term bank vaults. Pearl's hardness lower. Wearing a long white pearls will be yellow, so that the gloss variation can be 1% -1.5% hydrogen peroxide bleaching, we should not pay attention to drift too far, otherwise they will lose their luster.

In ancient times pearl jewelry has always regarded as the prceious jewelry but now pearls has become common and they are affordable jewelry.More over most of bridal jewelry are made of pearl.And nearly each girl all have at least one pearl jewelry item.We have more than 2000 styles of chinese pearl jewelry ,so welcome to discount pearl jewelry website.