- "It's a fuel mostly been mined out on Abafar. It's volatile and dangerous."
The Confederacy of Independent Systems extracted rhydonium from a secret mining installation on Abafar and loaded it onto the captured Venator-class Star Destroyer Renown in a failed attempt to pilot it into and destroy the Republic space station Valor, hosting the Republic strategy conference.
Later, fourteen years after the Clone Wars, rhydonium was present in Fort Anaxes, a base abandoned by the Republic, and was used by rebels Sabine Wren and Hera Syndulla to kill fyrnocks, which were threatening the two.
- Star Wars: The Clone Wars – "Missing in Action" (First appearance)
- Star Wars: The Clone Wars – "Point of No Return"
- Star Wars Rebels – "Out of Darkness"
- Star Wars Rebels – "Call to Action"
- Star Wars Rebels – "Homecoming"
- Poe Dameron 15: Legend Lost, Part II (Mentioned only)
- Poe Dameron 16: Legend Lost, Part III (Mentioned only)
- Star Wars: Episode VII The Force Awakens
- (First identified as Rhydonium)
- Star Wars Rebels: Sabine My Rebel Sketchbook
- Star Wars: The Force Awakens: The Visual Dictionary
- Star Wars: Rey's Survival Guide
- Star Wars: Galactic Atlas