Gneiss is a popular ore type because it holds significant volumes of three heavily used minerals, increasing its utility value. It has a quite a bit of mexallon as well as some pyerite and isogen. This ore is a compressed and much more dense version of the original ore.

Gneiss is often the first major league ore that up and coming miners graduate to. Finding the more expensive variation of Gneiss, called Iridescent Gneiss, is a major coup for these miners. Gneiss is a popular ore type because it holds significant volumes of three heavily used minerals, increasing its utility value. It has a quite a bit of mexallon as well as some pyerite and isogen. This ore is a compressed and much more dense version of the original ore.