Do you know what the most abundant element on Earth really is? You might be surprised to know that the answer depends on where you look. Earth is not made of one simple layer. It has the crust, the ...

There are 17 rare earth elements (REEs) in all — 15 lanthanides plus yttrium and scandium. It's a fairly diverse group, with each rare earth mineral having different applications, pricing and ...

Continental clues: Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories about plate tectonics. Researchers have made a new ...

A group of seventeen metallic elements contained in rare earth minerals. Also called "rare earth metals," they are essential in tech, energy and transportation. Mined from the earth's crust, they are ...