ClIonins

ClIonins are a class of fictional minerals described in science fiction and speculative geology. They are chlorine-rich halide minerals whose crystal framework is held together by a predominantly ionic lattice. The name combines the chemical symbol Cl with the word ion, reflecting their chloride-based chemistry and ionic bonding. In the narratives where they appear, ClIonins form a distinct mineral group with characteristic optical and physical properties.

Physical properties: ClIonins crystallize in isometric and sometimes hexagonal systems, producing small to medium-sized crystals with a vitreous to pearly luster. Color ranges from pale green to deep blue, driven by trace lanthanide and transition-metal ions. They have a Mohs hardness around 3–5 and show perfect cleavage along principal planes. They may exhibit faint pleochroism and luminesce under ultraviolet light.

Occurrence and formation: In the stories and speculative geology sources, ClIonins form in chlorine-rich hydrothermal environments, such as brine pockets in basalt and ocean-floor vents, where chloride-bearing fluids crystallize rapidly as temperature declines. They are often found with other halides and chloride-bearing minerals in their host rocks.

Research and applications: Within their fictional setting, ClIonins are studied to understand halide mineralogy, fluid-rock interaction, and planetary geology. Proposed applications include ion-conducting components in fictional devices and luminescent materials for optical technologies. ClIonins typically serve as a plot device or worldbuilding element rather than as a real mineral.