Geliime

Geliime is a fictional crystalline material referenced in science fiction literature, role-playing games, and worldbuilding anthologies. It is described as a translucent mineral with a faint inner glow that is prized for its supposed ability to store and release energy with high efficiency and minimal degradation.

The term geliime appears to be a constructed name used across different settings, with no single canonical origin. In various works it is linked to places such as mineral-rich planets or meteorite belts, but the specifics of its source differ from one universe to another. This variability is typical of invented materials designed to serve as versatile plot devices in speculative fiction.

In the imagined physics of geliime, the material possesses a complex lattice that can absorb energy from ambient radiation or mechanical stress and discharge it on demand. It is often described as having an energy density surpassing conventional fuels, and it can be stabilized or tuned with nanoscale coatings to control release rates. Writers frequently liken its behavior to a hybrid between a supercapacitor and a compact fuel cell.

Geliime is commonly depicted as central to advanced propulsion systems, high-capacity power cells, and ceremonial or symbolic artifacts within its fictional worlds. Its scarcity and control over mining, refinement, and trade can drive political intrigue and economic conflict, while its handling may involve safety concerns such as dust hazards, magnetization effects, or radiation-like emissions during processing.