Lummav

Lummav is a fictional mineral widely used in science fiction and fantasy settings as a luminous, energy-storing crystal. In these canons, lummav crystals are typically translucent, pale-blue to emerald-green, and exhibit persistent photoluminescence after exposure to ultraviolet light.

It is described as a phosphate-silicate compound with a layered lattice that traps electronic excitations. When stimulated by heat, electrical current, or magnetic fields, it releases energy as light and sometimes as electrical charge. It is noted for high radiation resistance and rapid luminescence decay that can be tuned by dopants.

In-universe geology places lummav in deep crustal hydrothermal veins and pegmatites, often associated with other luminescent minerals. It is commonly found on mineral-rich bodies in arid or volcanic regions of various fictional planets.

In lore, lummav powers compact energy cells, photonic processors, and emergency beacons. It is prized for its light output and stability, though mining is challenging due to rarity and brittleness. Processing involves high-temperature annealing and careful handling to prevent premature discharge.

Some writers depict supply shortages or ethical concerns in mining. See also phosphor, photoluminescence, energy storage materials.