Bisemutum
This piece of bisemutum is extremely dense, making it heavy for its small size. Its smooth surface is extremely cool to the touch, and is unresponsive to all but the most intense of outside heat. Iridescent colours, from blues to yellows, shimmer across the metal, forming a shifting patina.
Bisemutum chips are alchemical minerals, which can be stored in the rift. Administered by eating, it increases your learning lesson speed.