Liinibaase

Liinibaase is a fictional mineral used in worldbuilding and science education to illustrate mineral formation, crystallography, and trace-element enrichment. In the imagined geologic record, liinibaase occurs as a rare arsenide mineral with a formula of LiInBaAs, combining lithium, indium, barium, and arsenic.

The name Liinibaase blends chemical symbols Li (lithium), In (indium), Ba (barium) and As (arsenic) with the fictional suffix -baase, and is linked to a hypothetical Liina region described in the literature.

Crystals of liinibaase are typically prismatic, with a color range from silver-gray to bronze. It has a Mohs hardness of about 5, a density around 6.9 g/cm3, and a metallic to submetallic luster; the mineral is opaque.

In the fictional setting, liinibaase forms in medium-grade metamorphic rocks within subduction-zone ophiolites, under high lithium activity and arsenic-bearing fluids. It is associated with cassiterite, arsenopyrite, and xenotime. No real-world occurrences exist for this mineral.

Applications and significance within the fiction include cautious handling due to arsenic content, and speculative exploration of its potential as an energy-storage electrode material and as a radiopaque additive for imaging. As a hypothetical mineral, liinibaase serves as a teaching example for mineral classification and trace-element geochemistry.

History and usage notes indicate the term was introduced in fictional literature in 2047 by geologist-narrator Dr. A. Miro; since then it has appeared in textbooks and worldbuilding resources as an example mineral.