skystone

Skystone is a fictional mineral frequently appearing in science fiction and fantasy narratives. It is typically described as a luminous, blue- or iridescent stone that stores or channels energy. The name evokes its association with the sky or space, though its origin varies by setting.

Physical properties described across works include a low density but high strength, with crystals that refract light into shifting colors. Some portray skystone as superconductive at moderate temperatures, while others emphasize its fragility under direct heat. In many stories, its surface bears facets like a gem, sometimes with a faint glow that intensifies when energy is drawn from it.

Geologically, skystone's origin is fictional; explanations range from extraterrestrial deposition in ancient oceans, to meteoritic influx, to synthetic manufacture using advanced nanotech. It is often found in vein deposits within basalt or in asteroid-mined ores, and may require delicate handling to avoid energy leakage or spontaneous discharges.

Uses commonly include power sources for reactors or starship systems, energy storage units, shielding or armor, and high-strength composites. In some settings, skystone catalyzes reactions, enables teleportation, or serves as a limit-release resource in governance or economy within the story world.

Because of its versatility and rarity, skystone is frequently regulated by in-world authorities and traded on specialized markets, sometimes commanding prices far above ordinary minerals.