III-Grade or vitreous mercoxit gleams in the dark like a siren of myth. Found only in rare clusters in space vitreous mercoxit is very rare, but very valuable, due to its much higher 10% yield.

Mercoxit is a very dense ore that must be mined using specialized deep core mining techniques. It contains massive amounts of the extraordinary Morphite mineral.

This material is compressed and a much more compact form of the original material.