Haurium

Rare mineral that is sought by alchemists because of its natural ability to absorb qualities or magic properties. It can be dangerous to handle as its soaking abilities sometimes drains the owner of a valuable power. And though naturally occurring, the supply is always limited since it the process of absorption transforms it into a dry powder that contains the essence of the extracted power. This powder typically requires an alchemist to realize its potential.
For example, if haurium is placed close to an aurumvorax (living or recently deceased), it would absorb the frenzied attacks of the creature and turn into a powder that could be used as a vital ingredient in a speed or super-heroism potion. 
In some cases, the actual harvesting of the creature would yield better results. However, the powder produced by the haurium is typically more potent and rarefied, and it has the advantage of absorbing powers from living specimen.