pergium
From Trekipedia
Pergium was a rare element used in life support systems. The mining colony on Janus VI produced a significant percentage of the United Federation of Planets' supply of pergium, and when production was interrupted by the appearance of the Horta on Stardate 3196.1, the U.S.S. Enterprise NCC-1701 responded to the distress call.[1]
Notes and References
- ↑ Roddenberry, Gene (Executive Producer). "The Devil in the Dark." Star Trek, Season 1, Episode 25 (Production 26). Directed by Joseph Pevney. Written by Gene L. Coon. Desilu Productions, 9 March 1967.