Pearls are mainly produced in mollusks such as Pinctada, Pinctada and so on. Mineral beads containing calcium carbonate produced by endocrine action are composed of a large number of tiny aragonite crystals, which are rich in variety, different in shape and colorful.
According to the research of geology and archaeology, there were pearls on the earth 200 million years ago. In the international gem circle, pearls are also listed as lucky stones born in June and wedding commemorative stones for the 13th and 30th anniversary. Pearls with magnificent colors and elegant temperament symbolize health, purity, wealth and happiness, and have been loved by people since ancient times.
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Precautions:
1. Anti-acid corrosion: In order to keep the luster and color of pearls unaffected, contact between pearls and acids, alkalis and chemicals, such as perfume, soap and styling water, should be avoided. Don't wear pearl jewelry when swimming or bathing. So please put on your lovely pearls after makeup.
2. Stay away from the kitchen: there are tiny pores on the surface of the pearl, which is not suitable for it to inhale dirty substances in the air. Pearl absorbs hair gel, perfume and other substances. So don't wear beautiful pearls to send electricity. Be careful in the kitchen. Don't wear beautiful pearls when cooking. Steam and oil fume may penetrate into pearls and turn them yellow.
3. Cashmere cloth to serve: Every time you wear pearls (especially in hot weather), you must wipe them clean before putting them away to keep their luster. It is best to use sheepskin or delicate flannel instead of paper towels, because the friction of some paper towels will wear pearls.
4. Keep away from clear water: Do not wash the pearl necklace with water. Water can enter the pores of beads, which is not only difficult to dry, but also may ferment inside, and the beads may turn green.
5, such as wearing a lot of sweat, can be carefully wiped clean with a soft wet towel, naturally dry and put back into the jewelry box. After the pearl turns yellow, it can be remedied in this way: soaking in dilute hydrochloric acid can dissolve the yellowed shell and make the pearl reappear its glittering and charming color.