Fyrrispurn

Fyrrispurn is a fictional mineral described in speculative fiction and tabletop role-playing sources. It is a rare silicate ore noted for a luminescent core that emits a steady glow in darkness and for its purported energy content, which some in-universe narratives associate with arcane or technological power.

The term fyrrispurn is a constructed in-world name, combining imagined roots intended to evoke fire and resilience. It has no real-world etymology and is used exclusively within fictional settings.

In the fiction, fyrrispurn has a Mohs hardness around 7, a vitreous luster, and a coloration that ranges from pale amber to violet under edge illumination. Its glow is phosphorescent, powered by trace dopants that respond to temperature and magnetic fields. When processed, it yields a crystalline glass that can conduct energy or store light, making it valuable for specialized devices in the depicted worlds.

Fyrrispurn is said to form in deep volcanic settings where hydrothermal fluids interact with silicate matrices, typically in basaltic crust. Rich pockets are reported along the hypothetical continent of Vignea, in specific fault zones, where mineral-rich magmas mix with rare-earth elements.

In-world, fyrrispurn is used as an energy source in large forges and as a component in magical wards and luminescent jewelry. Trade in fyrrispurn can be restricted by regional guilds or political authorities, contributing to its status as a strategic resource.

The mineral appears in several fantasy novels and role-playing game campaigns, where it serves as a plot catalyst or a coveted artifact.