Residuum

Residuum is the physical form of magic. It is a whiteish, softly glowing powder that resonates with energy.

Characteristics and Uses
Residuum is the physical form residual magic from arcane storms, arcane nodes, and powerful spells takes. It is required for a number of immensely powerful spells. It lets off a lot of energy, making it an efficient, if scarce, energy source. Because of these useful qualities, the presence of residuum is the only reason settlements appear near arcane nodes.

History
Residuum is one of the most valuable resources on Duurn. It is the only materia of its kind, and several wars have been fought over it. In current times, The Hallowed People have been expanding and raising tensions to acquire residuum.