talarndandr

Talarndandr is a rare silicate mineral known from the ultramafic and high-grade metamorphic rocks of the Talarndandr Belt, a geologic province on the fictional continent of Verdara. The name derives from Verdaran roots talar meaning stone and ndandr meaning horizon, reflecting its occurrence at the edge of the belt and its shimmering, horizon-colored iridescence. First described in 2085 by a Verdaran–international mineral survey, talarndandr was named to honor the local toponym and the mythic figures Talar and Ndandr.

Talarndandr occurs as disseminated crystals and vein fills within serpentinized rocks, often alongside chromite, perovskite, and calcic plagioclase. Crystals are typically prismatic and show a vitreous luster with an iridescent blue-green to violet color. It crystallizes in a hexagonal system; measured hardness ranges from 6.5 to 7 on the Mohs scale; specific gravity is about 3.4–3.8. Its composition is rich in aluminum, calcium, magnesium, silicon, and trace rare earth elements, with variability depending on local geochemistry.

The mineral is of interest for mineral collectors due to its color and luster, and researchers study its trace-element zoning to understand metamorphic processes in subduction-related terrains. While not widely used industrially, talarndandr has prompted discussion of possible gem-grade cutting and potential scientific applications related to its unique optical properties.

See also: List of minerals; Verdaran geology.