eritl

Eritl is a fictional mineral that appears in speculative fiction, tabletop role-playing games, and fan-created lore. In most depictions, eritl is a rare silicate mineral notable for a deep blue to violet iridescence and a high density of stored energy. It is commonly described as forming in high-grade metamorphic rocks, often in association with quartz veins, and is mined in remote ranges such as the Ardent Range in Nyssara.

Composition and properties vary between works. Some sources describe eritl as a crystalline compound containing trace lanthanide elements and transition metals, yielding strong luminescence and energy-storage potential. Others treat eritl as a magical or technomagical material whose effects depend on the story’s context. Frequently cited characteristics include resilience to heat, a conchoidal fracture, and a luminous core that glows under ultraviolet light.

Uses and significance: In fiction, eritl crystals power compact devices, serve as high-value currency, or function as ritual focal points in magical practices. Rarity and geographic distribution often drive plot or game economies, with explorers risking dangerous expeditions to locate new deposits.

Etymology and reception: The name Eritl appears in multiple works with varying origins, from mythic geologists to invented languages. The term has a recognizable presence in fan wikis and game manuals, but it has no basis in real-world geology.