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Winning streaks

Ancient agate stones, formed 2.5 billion years ago, feature dense silica layers.

#AgateGeology #AncientRocks #EarthHistory

© Zen Rial / Moment / Getty Images

Landscape image

Portrait image

Winning streaks

Agate stones, striated and storied, found in Sicily's Achates River, dated back to 2.5 billion years ago, as old as life on Earth.

#AgateGeology #RockHound #AncientEarth

© Zen Rial / Moment / Getty Images