A mineral discovered in the Underdark that has sacrificial properties. Apparently the Derro of [[Deep Crag]] and other denizens of the depths worshipped the primordial spirits of fire within [[Galantor]] by feeding it to channels of magma below the surface.  It seems to be created with blood ritual sacrifice and immense pressure of shifting plates of the world's crust. It is highly flammable, combustible, and dangerous. It is also highly coveted by industry and warmongers alike for those same properties.    It is rumored that the [[Razor Mount]] harbors an entrance to this Underdark realm leading to Deep Crag and other denizens such as possible Mind Flayer colonies.