Tzo crystal

Tzo Crystals are a form of exotic matter that is found on Pellucid Worlds, such as Pluto, and on Ruby Worlds. They are apparently useful for predicting the future, as one of the Melnorme Trade Masters says "Your arrival was predicted by our Tzo crystal's vibrations. We already know why you are here and what you need from us; however etiquette requires that we act as though we are ignorant of your desires."