Welding stones is a weave in the One Power. It is based mainly on flows of Earth and it was used by the Asha'man to build the walls around the Black Tower. The walls with stones joined by this weave are described as more resistant and cohesive than any with stones joined by any kind of concrete or lime. This is a . There is not enough information provided from the Wheel of Time universe to expand this article. Please do not add .