Wikipedia:Articles for deletion/Dilithium (Star Trek)
I'm not even a Star Trek fan and I know about Dilithium crystals!  The dilithium crystal concept has been a staple of space-faring SciFi (both real and parody) since Star Trek introduced them, one notable example being Galaxy Quest.   This easily falls within 
— User:Shinmawa, 22:19, 27 May 2008 (UTC)
Stance: keep
Cited policy: WP:FICT (Wikipedia:Notability)