https://www.nationaldefensemagazine.org/
MOUNTAIN PASS, Calif. — Atop an arid mountain about an hour’s drive from Las Vegas, an excavator scooped up giant boulders mined from a nearby open pit and dumped them into a machine designed to reduce them to pebbles about the size of a marble.
Down in the pit, some 500 feet below, miners were preparing explosive charges that would blast basalt out of the mountain later that afternoon. Inside that rock were rare earth minerals, 17 different elements valued as building blocks for some of today’s most ubiquitous technologies — everything from electric cars to smartphones.