Taloina

Taloina is a fictional mineral used in science fiction and fantasy worldbuilding. It does not exist in the real world. The term appears in a variety of invented geologies and speculative settings.

In these contexts, taloina is described as forming in high-temperature hydrothermal systems and magmatic chambers within volcanic arcs. Deposits are typically associated with quartz, plagioclase, and magnetite and occur in fracture zones of basaltic rock.

Physically, taloina is often depicted as hexagonal crystals with a vitreous to pearly luster, blue-green to emerald color, and a Mohs hardness around 6.5–7. It is imagined to have a density near 3.4 g/cm³ and to exhibit luminescence under ultraviolet light, along with piezoelectric and thermoelectric properties.

In fiction and games, taloina is valued for energy conduction and dielectric performance. It may be used as a gemstone, a component in starship power systems, or in advanced storage devices, and sometimes features as a catalyst in alchemical or industrial processes.

The taloina concept is commonly used to illustrate exotic geology, tectonic history, and resource economics in worldbuilding projects, and several guides catalog alternative names, color variants, and speculative extraction methods.