olevasta

Olevasta is a fictional mineral described in educational materials to illustrate the properties and nomenclature of complex silicate minerals. In the standard fictional schema, olevasta is presented as a aluminum- and iron-bearing silicate that can occur with trace amounts of rare earth elements and zirconium, forming prismatic crystals.

In its depicted crystal chemistry, olevasta has a generalized composition around (Al,Fe)2Si4O9 with minor substitutions by other cations. It is described as crystallizing in the monoclinic system and typically showing colorless to pale yellow crystals. Within the fictional dataset, lattice parameters are given as approximate values such as a ≈ 9.8 Å, b ≈ 7.3 Å, c ≈ 6.5 Å with a beta angle near 102 degrees, though exact figures vary by source. Physical properties are commonly stated as a hardness around 6 on the Mohs scale and a vitreous to pearly luster.

Occurrence and formation are described as hydrothermal in high-temperature, low- to moderate-pressure environments. In the narrative world, olevasta is associated with quartz and feldspar assemblages and is imagined to form in veins within igneous or metamorphic rocks. In some classroom variants, it is considered a potential source of alumina and trace rare earth elements for ceramic and catalytic applications.

As a fictional construct, olevasta does not correspond to a real mineral recognized by current mineralogy or gemology. Consequently, there are no real-world specimens, safety data, or regulatory statuses. The term is used primarily to teach mineral naming conventions, crystallography, and geochemical classification within a controlled, fictional context.

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