The learning pharmaceutical, 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 mind-expanding patina. Like all alchemical minerals, it can be stored in the rift. Eating bisemutum increases your learning lesson speed.