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  "path": "/science/news-science/prehistoric-copper-cave-pyrenees/",
  "publishedAt": "2026-05-06T19:52:18.000Z",
  "site": "https://www.zmescience.com",
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  "textContent": "Cave 338 is far up in the mountains and out of the way, so why was it such a popular destination?",
  "title": "For Centuries, People Gathered at This Cave High in the Spanish Mountains. Green Rocks Could Show Us Why"
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