The Jiralhanae came across this molten metall-like mineral in a cave when building a settlement after the disbandment of the covenant. The mineral can easily be formed and will keep it's edgy shapes even when molten, making it ideal to make weapons of. Brutes pronounce it nʌgəʊhʊs, spelled Nugohus by humans.

The original layout was made by xMalevolution, though it has been altered in many ways he still made the first layout.