Light vs. Heavy Rare Earth Elements: Understanding the Difference and Their Strategic Value
The term “rare earth elements” (REEs) evokes images of cutting-edge technologies—electric vehicles, wind turbines, smartphones, and advanced defense systems. Yet, the story of these critical minerals began over two centuries ago, in the late 1700s, when Swedish chemist Carl Axel Arrhenius discovered a dark mineral in a quarry near Ytterby.