silica
From Trekipedia
Silica was a compound of oxidized silicon. The planet Gothos was described as an iron-silica body.[1]
Notes and References
- ↑ Roddenberry, Gene (Executive Producer). "The Squire of Gothos." Star Trek, Season 1, Episode 17 (Production 18). Directed by Don McDougall. Written by Paul Schneider. Desilu Productions, 12 January 1967.