renegotiel

Renegotiel is a fictional mineral described in speculative geology and science fiction literature. It is characterized by luminescent properties and unusual stability under high temperatures, features that make it a common element in worldbuilding and in imaginative mineralogy.

Composition and properties: Renegotiel is a magnesium- and titanium-rich silicate with trace amounts of vanadium and scandium. It typically forms as prismatic crystals with a vitreous to silky luster. On the Mohs scale it ranges from 6.5 to 7, and its density is about 3.9 g/cm3. The mineral glows blue to violet under ultraviolet light, and can exhibit long-lasting phosphorescence after exposure to light.

Formation and occurrence: In fiction, renegotiel is said to crystallize in high-grade metamorphic and ultrahigh-temperature hydrothermal environments. It is often depicted as occurring in banded ore veins within fictional continents and is commonly associated with garnet, rutile, and kyanite.

Applications and cultural role: Within speculative contexts, renegotiel is valued for persistent photoluminescence, which can power lightweight optical devices or energy storage concepts. It also appears in worldbuilding as a rare trade good, sometimes used as a symbol of technological prowess or territorial prestige.

See also: Phosphorescent minerals, List of fictional minerals.