- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
A vital mineral used in the cure of deadly Rigelian fever. In 2269 the fever -struck crew of the U.S.S. Enterprise was cured by a deposit of ryetalyn found on a small planetoid in the Omega system.