Buried treasure: Appalachian Mountains hold enough lithium to make 500 billion smartphones and 130 million electric vehicles, scientists discover

The ancient Appalachian Mountains may be hiding one of the United States' most valuable untapped natural resources. According to new research by the US Geological Survey (USGS), the mountain range contains an estimated 2.5 million tons of lithium, enough to manufacture around 500 billion smartphones, 180 billion laptops or 130 million electric vehicles.

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