Imagitium is a rare mineral that is a mix of pure Imagination and crystal, It is used in certain weaponry as well as a power source, as shown in Imagitium Recharge.
It is also useful as it can't be infected by the Maelstrom. It is currently being studied by both the Creator and Eclipse Factions, who believe it could be used to cure infections. It's shape can be changed with a minifig's maelstrom concentration (if they have strong enough will power, although very few do), making it a valuable building tool as well.
It is used as currency for Imagichemists vendors and is found on Crux Minor and the Kingdom World. It is also used to power the Mega Mythran, and part of The Resolute Machine .
Imagitium often forms a cube shape.
It can also be found in a more easily changeable impure state, which is normally stored in canisters.
Imagitium found in rock.