Vast, Untapped Source of Lithium Found in The US Could Last 300 Years

Image: A freshly cut sample of lithium, with some oxides already formed – December 26, 2007. Image credit: Dnn87 via Wikimedia Commons. CC BY 3.0. Article by Ivan Farkas. ScienceAlert – May 15, 2026. Research article: Natural Resources Research.

There could be nearly 330 years’ worth of lithium hiding beneath the Appalachian Mountains, which stretch like a stony spine across the eastern United States. New research from the US Geological Survey suggests that the Appalachians may contain around 2.3 million metric tons (2.5 million US tons) of recoverable lithium oxide locked away in pegmatites, the grainy, granite-like rocks that form as water-rich magma cools and crystallizes deep within the Earth. […]

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