Glow Rock is a rare mineral found in the Nimbus Mountains. It is known for emitting light when certain materials, such as phosphor, surround it. This is because of Cherenkov Radiation, but this also means the rock is radioactive. It may only send out alpha radiation, but wizards recommend not standing too close to it. The main use of them is crafting Gemstone Pedestals, though visitors are warned not to come too close to it. The chemical formula is S3Th4UH3OTi7Cu.