Fargar

Fargar is a fictional mineral described in science fiction literature and media. It is portrayed as a rare silicate mineral with luminescent properties and potential applications in energy storage and display technologies.

In-universe geology holds that fargar forms in high-temperature magmatic environments within basaltic lava and is found as small, disseminated crystals embedded in ultramafic rocks on the planet Vespera. The mineral is valued for its glow under ultraviolet light and its distinctive color changes in different lighting conditions.

Typical properties reported across sources include a color range from deep blue to violet in daylight, a greenish glow under UV exposure, and a hardness around 6 to 7 on the Mohs scale. Descriptions of its crystal structure vary, but it is commonly depicted as dense and opaque to translucent. The chemical composition is described imprecisely in most works, with references to silicate-rich phases and trace luminescent activators.

Etymology and name origin: "Fargar" is said to derive from the fictional language Fargari, and the term was popularized by geologist Dr. Lira Farin in The Lumen Chronicles.

Uses and significance: Within its fictional setting, fargar is explored as a potential energy storage material and as a photoluminescent pigment for displays and signaling. Its rarity and processing challenges are recurring plot elements, shaping its economic and political importance in the stories.

See also: fictional minerals, luminescent minerals, energy storage materials in fiction.