Although the color of the pearl is very beautiful, it does not stand the test of time. Generally, after several decades, the pearl will become ordinary yellow, and at the same time, the beautiful pearl luster will be lost. This is what the saying goes, "the old man is yellow."
Why does the pearl jewelry use yellow for a long time? This is mainly because the physical properties of the aragonite minerals that make up the pearl are unstable. Over time, it becomes an ordinary calcite. Aragonite and calcite, although their chemical composition is the same, their crystal form and luster are not the same. This is the reason for the discoloration of the pearl.
After the pearl turns yellow, there are some remedies, that is, soaking with dilute hydrochloric acid can dissolve the yellowed outer shell, and the pearl will reproduce the brilliant and radiant color. But if the color becomes very powerful, it will be difficult to reverse.
You should wear pearl jewelry after the makeup, because any beauty products (powder, foundation cream, etc.) are harmful to the pearl, including perfume and hair gel. After wearing, the pearls should be washed with water, rinsed, dried, and then collected, otherwise the pearls tend to yellow.
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