katklaryla

Katklaryla is a fictional mineral term used in worldbuilding and speculative fiction to illustrate mineralogical properties and crystallography. It is not recognized as a real mineral by official bodies such as the International Mineralogical Association.

In typical fictional treatments, katklaryla is described as a transparent to translucent crystal with a glassy to pearly luster, ranging in color from colorless to pale blue or green. Reported hardness in these depictions varies but is often presented around 6 to 7 on the Mohs scale, with a specific gravity between 3.0 and 3.5. The material is sometimes described as anisotropic and capable of luminescing under ultraviolet light.

Compositional descriptions in invented lore vary; katklaryla is commonly portrayed as an aluminosilicate- or borosilicate-like mineral, sometimes with trace fluorine or rare-earth elements. There is no canonical chemical formula, and authors frequently adapt the mineral’s chemistry to suit their worldbuilding needs.

According to fictional narratives, katklaryla forms in high-temperature, high-pressure environments such as pegmatites or subduction-zone metamorphism, and it is sometimes said to crystallize in meteorite or extraterrestrial settings. Its purported applications range from a gemstone of unusual color and fire to a theoretical energy-storage material in sci-fi contexts.

See also: fictional minerals, worldbuilding resources, mineralogy.