Suddenly Presteign began speaking in a low monotone. "PyrE is a pyrophoric alloy. A pyrophore is a metal which emits sparks when scraped or struck. PyrE emits energy, which is why E, the energy symbol, was added to the prefix Pyr. PyrE is a solid solution of transplutonian isotopes, releasing thermonuclear energy on the order of stellar Phoenix action. It's discoverer was of the opinion that he had produced the equivalent of the primordial protomatter which exploded into the Universe."