Lewis Gneiss, the oldest rock formation in Britain, 2,900,000,000 years old.

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Lewis Gneiss, the oldest rock formation in Britain, 2,900,000,000 years old.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ancient, archival, archive, britain, formation, gneiss, historical, history, lewis, minerals, natural, nature, oldest, rock