dusklit

Dusklit is a fictional luminescent mineral described in speculative fiction and role-playing game settings. It is prized for its twilight glow and its perceived link to dusk, hence the name. It typically forms as translucent to pale-opaque crystals with a pale gray to violet hue when lit. In darkness it emits a steady, soft glow that intensifies as ambient light fades. The luminescence is commonly described as phosphorescent, with afterglow lasting from a few minutes to several hours depending on the deposit and treatment.

In-universe lore, dusklit forms in low-oxygen environments, such as deep caves, lunar regolith, or asteroid belts near shadowed regions. Some stories attribute its glow to a mineral- or microbial-driven process; others tie it to ancient star-forges.

It is mined, cut into lamps, beads, sigils, or inlays. In many settings it serves as a source of light when other energy sources are scarce, and as a ceremonial or status symbol. Some fiction depicts dusklit as having energy-storing properties or as a conductor in devices, though this varies by author.

See also: Bioluminescence; phosphorescence; luminescent minerals; fictional minerals.