Q：Can pearls lose their luster?
A：Yes, pearls can lose their luster over time due to various factors. Here are some reasons why pearls might lose their luster:
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Exposure to Chemicals: Pearls are sensitive to chemicals found in cosmetics, perfumes, hairsprays, and other beauty products. Prolonged exposure to these substances can cause the surface of the pearl to become dull and lose its luster.
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Contact with Acidic Substances: Pearls can be damaged by contact with acidic substances such as lemon juice or vinegar. Acidic substances can eat away at the nacre, the outer layer of the pearl, leading to a loss of luster and even pitting or erosion.
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Environmental Factors: Exposure to extreme temperatures, humidity, or dry conditions can also affect the luster of pearls. For example, storing pearls in a dry environment can cause them to become dehydrated and lose their luster.
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Abrasion: Continuous rubbing or abrasion against rough surfaces can wear down the surface of the pearl, causing it to lose its luster over time.
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Improper Cleaning: Using harsh cleaning agents or abrasive materials to clean pearls can damage their surface and strip away their luster.
To preserve the luster of pearls, it's important to handle them with care, avoid exposing them to harsh chemicals or acidic substances, and store them properly in a cool, dry place away from direct sunlight. Additionally, pearls should be cleaned gently using a soft, damp cloth and stored separately from other jewelry to prevent scratching. Regular maintenance and professional cleaning by a jeweler can also help restore the luster of pearls if they begin to dull over time.