Rhydonium

"Allow me to introduce you to one of my oldest and most explosive friends, rhydonium.''" "''It's good to have friends."

- Sabine Wren and Hera Syndulla

Rhydonium was a volatile type of fuel, found for the most part on the remote planet Abafar. The Confederacy of Independent Systems extracted rhydonium on Abafar in a failed attempt to destroy the Republic space station Valor.

Later, 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.