Gold is chemically inert and so doesn't tarnish, but exactly why had been a mystery
Physics
Gold is chemically inert and so doesn't tarnish, but exactly why had been a mystery
By Karmela Padavic-Callaghan
27 May 2026
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Scientists Found The Atomic Reason That Gold Refuses to Rust
Gold keeps glittering courtesy of surface chemistry
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Hexagonal patterns on the surface of gold crystals are an unfavourable environment for reactions.
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