Cruxite

A mysterious blue apple created by the Alchemiter while using a carved Cruxite Dowel. Biting this apple saved John from being obliterated by a meteor by transporting him and his house into some kind of alternate dimension. It also caused a mysterious transformation in the Kernelsprite, splitting the kernel portion into two halves and leaving behind the ghostly Sprite.The apple is not in John's inventory, so it is safe to assume it dissolved after it was used.