deponifri

Deponifri is a fictional mineral species used in speculative geology, worldbuilding, and game materials. It was created to illustrate mineral-descriptive techniques and naming conventions within a self-contained fictional universe. The name is a constructed term designed to evoke a deposit-related origin while fitting common mineral-naming phonology.

In the fiction, deponifri forms as blue-green to emerald prismatic crystals with a vitreous luster. Crystals are typically slender to tabular and may be transparent to translucent. Descriptions place its hardness at about 6 to 6.5 on the Mohs scale, with a moderate density and notable birefringence in thin sections. The composition is described as a complex aluminosilicate with minor carbonate and fluoride components; because it is fictional, exact empirical data vary between sources.

Occurrence and formation: Deponifri is said to crystallize in high-pressure hydrothermal veins within subduction-zone rocks, often in ultramafic hosts such as serpentinite. It is commonly associated with minerals like serpentine, chlorite, and magnetite, forming under conditions of elevated fluids and pressures.

Discovery and naming: The mineral is attributed to fieldwork in the island chain of Virelia in the fictional archipelago. The name combines a deposit-related root with a suffix common in mineral nomenclature, signaling its status as a constructed concept rather than a real mineral.

Usage and context: Deponifri is used in teaching examples of mineral description, in worldbuilding, and as a plotted material for jewelry or game resources within its fictional setting.

See also: fictional minerals; mineral description in worldbuilding.