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Glittering Gold Can Stay Shiny for Centuries. Scientists Say They've Figured Out Why the Precious Metal Is So Resistant to Tarnishing
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Glittering Gold Can Stay Shiny for Centuries. Scientists Say They've Figured Out Why the Precious Metal Is So Resistant to Tarnishing

Smithsonian · Jun 4, 2026, 3:26 PM

When the metal is split, the atoms on its surface rearrange themselves into a very stable pattern that doesn't easily react with oxygen in the air, a study suggests

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