Jeleneten

Jeleneten is a fictional mineral described in speculative geology and world-building literature. It is presented as a rare silicate-phosphate mineral with a tetragonal crystal system, known from the fictional Jelen Range in the country of Valoria. The name combines the imaginary region Jelen with the common mineral suffix -en.

Occurrence and formation: In the fictional canon, jeleneten forms through hydrothermal metasomatism in ultramafic rocks and is often found in vein systems alongside nepheline and ilmenite. It is associated with high-temperature, high-fluid-activity environments, typically 350–650°C and modest pressures corresponding to shallow crustal settings.

Properties: Jeleneten crystals are olive-green to brown, with a vitreous luster and a prismatic habit. It typically measures 1–5 cm in typical specimens. Mohs hardness is described as 5.5–6.5; density 3.2–3.6 g/cm3. It shows weak pleochroism and has refractive indices around 1.68–1.74.

Composition and structure: In descriptions, jeleneten is silicon- and iron-rich, with traces of aluminum and magnesium. Exact stoichiometry is variable, reflecting a solid-solution series between ferrosilicate and ferric phosphate-rich end-members.

In fiction and education: Jeleneten is often invoked to illustrate metasomatic processes and crystallization sequences. In some narratives, it is valued for its beauty in jewelry; in others, it is speculated to have energy-storage properties that are fictional.

Status: No real-world specimens or peer-reviewed validations exist; jeleneten is a construct of creative literature and hypothetical mineral modeling rather than an established mineral species.