Aivite

Aivite is a mineral described in speculative geology and in science fiction as a rare silicate mineral. As of today, there are no widely accepted verified specimens or formal recognition by major mineralogy references, and reliable physical data are limited to hypothetical descriptions.

Taxonomically, aivite is reported to belong to the silicate group and to crystallize in a layered or framework structure. Descriptions commonly place iron and aluminum as major cations, with potential calcium, magnesium, and titanium substitutions. The idealized chemical composition is often stated in general terms rather than a fixed formula, reflecting the material’s hypothetical nature. Crystal symmetry is variously reported as tetragonal or monoclinic in speculative sources.

Reported properties in fiction and speculative literature describe aivite as colorless to pale yellow-green, with a vitreous luster and transparent to translucent crystals. Mohs hardness is commonly placed around 6 to 7, and the specific gravity around 3.0 to 3.4, though such figures are provisional due to the lack of confirmed samples.

In fictional or speculative contexts, aivite is said to form in hydrothermal environments, often in association with quartz, calcite, and other silicates, and is sometimes linked to igneous or metamorphic terrains. Occurrence is described as rare.

Because there are no authenticated specimens, aivite has no established industrial or commercial uses. It functions mainly as a placeholder in discussions of mineral diversity and in world-building.