Raritanium chests were Space Pirate treasure chests containing the valuable ore, Raritanium. They could be found all over the Polaris Galaxy in somewhat hidden locations, in an attempt by the pirates to hide them. The ore could be used to upgrade weaponry at GrummelNet vendors.
- Ratchet & Clank Future: Tools of Destruction (first appearance)
- Ratchet & Clank Future: A Crack in Time