Zelmite is a mint-colored Crystal that is found in the Zelmite Mines in Palm Brinks. The Mines are very dangerous and home to the final-final boss, the Fake Genie from Dark Cloud.

Zelmite can be used to power pretty much anything, including living creatures such as Metal Flotsam, who survives only through the power of Zelmite. However, because of the properties of Zelmite, Flotsam is an almost empty creature, void of emotion.