Elevated levels of lithium, rubidium and cesium have been detected in waters associated with the historic Kings Mountain Mine, west of Charlotte, North Carolina ... the mine was abandoned in ...

Credit: Illustration by Julia Wytrazek / Getty Images There are about 500,000 abandoned mines in the ... with the historic Kings Mountain Mine" in North Carolina, said Newsweek.

I’m Brian Gordon, tech reporter for The News & Observer, and this is Open Source, a weekly newsletter on business, labor and technology in North Carolina ... U.S. lithium mine, in Silver ...