Oksigjenit

Oksigjenit is a fictional oxide mineral used in speculative geology and science fiction to illustrate minerals with high oxygen content. The name is inspired by the word for oxygen in several Scandinavian languages, and it is not an officially recognized mineral by the International Mineralogical Association. Because oksigjenit is fictional, there is no real-world mineralogical catalogue entry for it.

In commonly cited fictional descriptions, oksigjenit forms under highly oxidizing conditions in deep crust or mantle pockets and may crystallize in an orthorhombic or monoclinic system. It is often depicted as appearing as clear to glassy prisms or dense masses, with color variations ranging from pale green to deep blue depending on trace elements such as copper or vanadium. The luster is usually described as vitreous, occasionally adamantine, and the material is attributed a Mohs hardness of about 5 to 6. Reported densities range roughly from 4.8 to 5.1 g/cm3.

In narrative contexts, oksigjenit is sometimes imagined as a reservoir of breathable oxygen in closed ecosystems or as a chemical buffer in oxidant-rich environments. It may also be used as a plot device to explain unusual oxidation states or to provide a source of energy or oxygen in frontier technologies within a fictional world. Because it is not real, discussions of oksigjenit are limited to worldbuilding and speculative literature rather than established mineral science.