Do you know why the pearl will yellow and fade!

Today's jewelry is multifarious, what material are, or what style of all have, just look at what kind of, you are like pearls or popular, because it has a sedative effect, then you know why pearl yellow fade, and what's the problem, let guangzhou jewelry processing of the author to tell us. The colour and lustre of freshwater pearl although very beautiful, but it can not stand for long periods of time. Usually by more than a decade, pearl will become yellow, lose the beauty of the freshwater pearl luster, this is what the saying goes the tree withered wood. Freshwater pearl jewelry is used long why yellow? This is mainly composed of pearl aragonite mineral deposits the physical properties of unstable, time grows, it becomes normal calcite. Aragonite and calcite, despite the same chemical composition, and their crystal shape and luster is not the same. This is the reason why the pearl color. Why old yellow pearl? This means that the pearl is full, yellow is the embodiment of the aging of pearl. Pearl has always been regarded as treasures, in all parts of the country's tomb, often have unearthed ancient pearl, but the pearl is not for collectors to pay attention to. Initially, wealth behind women, especially young lady, miss, often buried with their favorite pearl. The grave of the pearl is the same with people, are beautiful is youth, burnish, is but the unearthed from the yellow one, lost the old style, not cherish. Pearl is by inoculation, then its luster and beads are not full. Longer life spans than people, but with Air China and Japan for a long time by oxidative, pearl layer change from white to yellow. Even when the buried the grave pearls in the coffin in good condition, will lose luster. Pearl layer cracked, if a coffin owe good sealing function, often become a residue pile. On the basis of modern scientific research, know the pearl shellfish combined special colloid calcium carbonate crystals. Each pearl containing more than 90% of the calcium carbonate and about 4% of the water, pearl is depend on the water to make it sparkle unripe brightness. Long time not use pearl is easy to run away the water, after six hundred and seventy years or more to about one hundred years after they became yellow. Thus, pearl stature is not long. A pearl, about the brilliance of the chance to show it in one hundred, compared with the unknown one, in the depths of the sea is also very lucky. If you want to know more about the latest industry information guangzhou jewelry processing, please pay attention to our website