Ruby Crystals of Burma

The Ruby Crystals of Burma were red crystals that represent one of the most powerful natural energy sources on Earth. "Sparkplug" Witwicky once worked at the mine where they were found. The Decepticons (Destrons) sought to acquire the crystals, only to have the Autobots (Cybertrons) interrupt them by bombing the mine.

Comments

Strangely, humanity didn't seem to take advantage of this powerful energy source.