Stygium

Stygium (Also Known as Obsidian Steel) is a magical metal created through a complex process involing iron ore and pitchblende containing Thaumacite.
Stygium is stronger than steel, and is notable for its resistance to heat. It seems leach heat from the air, and is always cold to the touch. It seems to suck light out of it near environment.
Its most notable use is in the swords of the The Golden Order of the Knights of Sevina’s Divine Justice.

Type

Metal