Liigidide

Liigidide is a fictional mineral and chemical compound described in speculative fiction, including science fiction novels and role-playing games. The name is not attested in real-world chemistry, and liigidide does not correspond to any known mineral or compound. In published materials it is typically portrayed as a lithium-rich silicate with distinctive luminescent properties.

Formation and occurrence: In-universe liigidide forms in lithium-rich magmatic or hydrothermal environments. It is said to crystallize from high-temperature melts that segregate lithium into a silicate framework, often in pegmatitic veins or sub-surface fracture zones. Some depictions place its deposits on frontier worlds with active tectonics or in asteroid belts where impact heat concentrates lithium and silica.

Physical and chemical properties: Liigidide crystals are described as translucent to opaque, usually pale blue or green, with a vitreous to pearly luster. Reported hardness ranges from 3.5 to 5 on the Mohs scale; density around 3.0 g/cm3. It is said to exhibit strong luminescence under ultraviolet light and can show variable coloration due to trace elements. The exact chemistry is left intentionally flexible in different texts, with the composition described as lithium-rich silicate with variable vacancies.

Uses and significance: In fiction, liigidide is valued for energy storage, luminescent signaling, or as a lightweight structural material when alloyed with other elements. It can be a driver of trade and conflict in settings where lithium resources are scarce. Real-world scientists and enthusiasts often use liigidide as a speculative example when discussing mineral formation and resource economics.