Macaquium

Macaquium, with the symbol Uma on the periodic scale, is a world-renowned material claimed to be "The Strongest Metal"

Description
Macaquium is one of, if not, the most useful material in the world. With it, it's possible to make alloys of incredible resistance and lightweightness, even to the point of nothing short of the alloys of legend.

It was discovered in a desperate time in Braziland, kickstarting the country into a full fledged superpower shortly after the fall of Forbidden Land America.

It is one of the most widely used materials world-wide. Some say it's possibilities are limit-less.