fzes

Fzes is a fictional mineral that appears in speculative fiction and role-playing settings. Descriptions typically depict fzes as a crystalline silicate with a pronounced iridescent sheen that shifts color with light. In many narratives, fzes crystallizes in hydrothermal veins or high-temperature metamorphic rocks and is valued for its beauty as well as rumored energetic properties.

The name fzes is presented in-universe as originating from the language of the planet Zyris, where the mineral was first described by early colonists. In external sources, the term is treated as a loanword adopted by various writers to denote a jewel-like mineral with exceptional luminescence. This etymology is typically explained as part of world-building rather than a real linguistic history.

Fzes is described as translucent to transparent, with a hardness around 5 to 6 on the Mohs scale and a high refractive index that gives it strong dispersion. Its color ranges from pale gold to deep violet depending on trace elements. The mineral is typically found in association with copper or tin sulfides in fictional basaltic environments, where its formation is linked to specific thermal histories.

Within stories, fzes is prized for jewelry and ornamental carving, and is also depicted as a potential energy-converter or signaling material due to its luminescence when stimulated by electricity or heat. The rarity and beauty of fzes drive trade and plot points in many works, making it a recognizable element in fantasy and sci-fi communities.

See also: List of minerals in fiction, gemstones in science fiction, crystal lore.