Lithium in the Appalachians could replace imports for a century or more, estimates suggest

The southern Appalachians hold an estimated 1.43 million metric tons of lithium oxide, concentrated in the Carolinas, and the northern Appalachians hold an estimated 900,000 metric tons, concentrated in Maine and New Hampshire, according to estimates in a new USGS scientific paper published in Natural Resources Research. The lithium is present in pegmatites, large-grained rocks similar to granite.