Enuun

Enuun is a fictional mineral that appears in science fiction literature and in collaborative worldbuilding communities. It is described as a rare crystalline substance with exceptional properties that make it highly sought after for advanced technologies. The word enuun is of invented origin in most works, with etymologies varying by author.

In-world, enuun is said to form under extreme conditions, such as high pressure and low temperature, and is often depicted as occurring in remote environments—icy moons, seafloor vents, or meteorites from alien planets. Descriptions of its physical properties vary, but convergences include a high energy density, unusual charge transport, and a lattice capable of sustaining exotic states. Some writers assign a kind of pseudo-superconductivity to enuun, while others emphasize robust mechanical strength and radiation resistance.

Because of its fictional status, enuun is not mined or traded in the real world. In stories, it is mined by specialized teams, refined into alloys and energy-storage modules, or used as a power source for spacecraft and experimental quantum devices. Its scarcity often drives plot conflict, affecting politics, economics, and technology development within the narrative worlds.

Enuun has become a common trope in speculative design and worldbuilding discussions. It is frequently grouped with other invented materials such as unobtainium and veridium, serving as a fictional proxy for resource-driven storytelling and the ethics of exploitation in advanced economies.