Toteum

Toteum is a fictional chemical element and material widely used in speculative fiction and tabletop role-playing games. It is not recognized by any scientific body, and no peer-reviewed discovery confirms its existence in the real world.

In fictional universes, toteum is often described as a dense, silvery metal with a high melting point and exceptional corrosion resistance. Some sources assign it an atomic number in the vicinity of 120 and a symbol such as To or Tt, though symbols vary between works. The material is frequently depicted as ductile and capable of forming stable alloys with a range of elements.

Occurrence and production: Toteum is typically said to occur in rare ore deposits on outer planetary bodies or as a byproduct of speculative nuclear transmutation. In many narratives, it is synthesized in specialized facilities by advanced civilizations.

Uses and significance: In fiction, toteum is valued for properties such as energy storage efficiency, high mechanical strength, and potential superconductivity at elevated temperatures. It is depicted as enabling exotic technologies, from compact power cells to hyper-energetic propulsion components. Real-world researchers note the concept is fictional and not grounded in existing physics.