Why gold never tarnishes has finally been explained

Researchers at Tulane University have discovered that gold's resistance to tarnishing is due to the way its surface atoms rearrange themselves into protective patterns. This atomic restructuring prevents oxygen from reacting with the metal, effectively creating a natural barrier.
Why it matters
Understanding this mechanism could lead to the development of more efficient gold-based catalysts for industrial manufacturing and clean energy applications.
Gold has long been valued for its brilliant, long lasting shine. Now, researchers at Tulane University have uncovered an important reason why the precious metal remains so resistant to tarnishing. Their findings show that gold's durability is not determined by its chemistry alone. Instead, the arrangement of atoms on its surface plays a critical role.
The article is a straightforward report on scientific research findings without political or social framing.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in