skvlé

Skvlé is a fictional mineral described in speculative fiction and world-building references. It is depicted as a translucent silicate crystal with strong iridescence and photoluminescence, capable of changing color with viewing angle and light wavelength. In various works, skvlé crystals exhibit pleochroism and a high refractive index, producing vivid color shifts when observed under different lighting.

In-universe geology places skvlé formation in hydrothermal veins within basaltic hosts, created during rapid cooling of silica-rich fluids. Crystals are typically prismatic and occur alongside minerals such as quartz and pyrite. Some stories situate skvlé in specific fictional regions or planets, using its appearance to signal geological activity or mineral wealth.

Reported properties across sources include a Mohs hardness around 5–6 and a specific gravity near 3.0–3.3, with a high refractive index that yields pronounced prism effects. Skvlé is often described as strongly pleochroic, presenting colors that range from blue-green to violet under ultraviolet light.

Uses and cultural significance center on its aesthetic and potential applications. Skvlé is valued for decorative jewelry due to its luminescence and color-shift, and some narratives explore speculative photonic or signaling uses. Mining and processing skvlé is portrayed as dangerous but lucrative, with artisans emphasizing techniques to maximize iridescence.

Etymology and usage vary by work, but the name skvlé is generally presented as derived from a fictional language or regional term within the stories. See also: List of fictional minerals, Glossary of minerals in fiction.