ghostcoal

Ghostcoal, also known as warpstone, is a flamable rock made from fossilised trees, entangled with ancient rift energy. It gives off considerable energy, and is sought after as fuel for steam-tech devices due to its uncanny properties.
It is said the eerie whispers can be heard in the burning embers of ghostcoal, and watching its flames too long is said to drive one mad (muwhahahah!!!!!)

ghostcoal

RiftWest seidgaldr