Aside from Infinity Stones, Vibranium is the most valuable and coveted commodity in the Marvel Cinematic Universe. As established in Black Panther, Vibranium arrived on Earth millions of years ago in the form of a gigantic meteor composed of the metal. The meteor crashed in the continent of Africa, whereupon the nation of Wakanda was built around the “Great Mound” of Vibranium. Over millennia, the Wakandans learned to harness Vibranium, which is the most versatile substance on the planet.