Fellaridan

Fellaridan is a fictional crystalline mineral and energy material that appears in science fiction literature, games, and media. It is typically depicted as a rare substance with extreme energy density and unusual electronic properties, making it central to advanced technologies such as propulsion, power storage, and gravitic stabilization.

The origin of the name is uncertain and varies by work; it is generally treated as a coined term inspired by fictional planetary or system names used in various universes.

Properties commonly attributed to fellaridan include a hard, stable crystal form with a wide band gap and high thermal conductivity. Some depictions describe superconductive behavior at or near room temperature, while others require low temperatures. It is often portrayed as chemically inert under ordinary conditions but reactive with strong halogens or oxidizers in controlled environments.

Occurrence and mining in fiction place fellaridan in deep subterranean veins on select exoplanets, frequently within tectonically active belts. Extraction is portrayed as resource-intensive and typically requires shielded, remote facilities to prevent contamination of surrounding ecosystems or other materials.

Applications in narrative worlds include serving as an energy storage medium for long-range propulsion systems, a catalyst or structural component in fusion or advanced reactor schemes, and a material used to stabilize or shape gravitic fields. In some stories, its scarcity and value lead to dedicated trade networks or speculative markets.

Documentation and details of fellaridan vary widely between works, and there is no real-world scientific consensus on its existence or properties.