Flimre

Flimre is a fictional mineral name used in speculative fiction and worldbuilding to describe a rare ore with distinctive optical and energetic properties. In most depictions, flimre is translucent to opalescent, showing shifting iridescence that changes with light and viewing angle. Authors commonly categorize it as a silicate or fluoride-like mineral, though the precise chemistry varies between works.

Physical properties are described inconsistently across sources, but common traits include a mid-range hardness on the Mohs scale, a high refractive index, and a tendency to fracture conchoidally. Flimre is often said to possess luminescent or phosphorescent qualities, emitting faint light in darkness and sometimes reacting to electrical or magnetic fields in certain stories.

Formation and distribution are likewise variable. Some portray flimre as forming in high-temperature metamorphic veins within subduction zones, others as crystallizing in volcanic dikes or as meteoritic inclusions. It is frequently found alongside quartz, feldspar, and mica, or in associations with rare-earth minerals.

In-world uses range from energy storage and advanced optics to ceremonial objects and currency in some settings. Its rarity is commonly emphasized, making flimre highly valued and the subject of trade networks or fictional conflicts. Etymologically, flimre is a modern coinage within fiction, with no real-world counterpart.

See also: fictional minerals, worldbuilding, science fiction worldbuilding resources.