kuprut

Kuprut is a fictional mineral described in speculative geology and science fiction. It is presented as a copper-rich sulfide–arsenide mineral with distinctive properties that distinguish it from real-world copper minerals.

Physical properties typically include a coppery reddish-bronze color with a metallic luster and an opaque appearance. The mineral forms prismatic to tabular crystals and has a hardness around 3 to 4 on the Mohs scale. Measured densities range roughly from 7.6 to 8.0 g/cm3, reflecting its copper content. The streak is copper-brown.

Occurrence and associations: In the fictional accounts, kuprut forms in hydrothermal veins within ultramafic and metamorphic rocks and is commonly found with chalcopyrite, bornite, galena, and sphalerite. It is typically associated with arsenic-rich fluids at elevated temperatures. The Aurin Range and similar settings are often cited in literature as sources.

History and name: The mineral was first described in 1968 by the fictional geologist Dr. Elena Kuprut, after whom the mineral was named. The name is said to derive from the common root kup- for copper, with the suffix -rut intended to evoke rugged crystal habit.

Uses and significance: In its imagined world, kuprut is explored for potential electrical conductivity and heat tolerance and is occasionally cut for decorative cabochons. Its fictional status means it is not cataloged by real mineral nomenclature authorities, and any practical applications exist only within narrative contexts.

See also: copper minerals, cuprite, chalcopyrite, bornite, arsenides.