Scientists create 'transparent aluminum,' call it a new state of matter

Scientists create 'transparent aluminum,' call it a new state of matter:

"Oxford scientists claim to have created a transparent form of aluminum by bombarding the metal with the world’s most powerful soft X-ray laser. The substance is nearly transparent to extreme ultraviolet radiation and is the latest addition to a growing list of exotic states of matter.
Crossing over from science fiction to fact, ‘transparent aluminum’ was [...] "