Voine

Voine is a fictional mineral described in speculative fiction and world-building contexts. It is depicted as a small, prismatic crystal with an iridescent luster that shifts color with the viewing angle.

The etymology of the name voine is not standardized; most sources treat it as a neutral term without a fixed linguistic origin, though some writers attribute it to an imagined language of a distant culture.

Voine is described as having a metallic-to-pearlescent surface, with color ranges from pale blue to violet. Reported hardness is around 5.5 to 6 on the Mohs scale, and it tends to fracture conchoidally. Descriptions vary, but many sources assign it to an oxide-rich assemblage containing zinc and iron, with trace copper and nickel.

In fiction, voine is said to form in hydrothermal veins within ultramafic or metamorphic rocks, typically in settings resembling volcanic arcs or subduction zones. Formation is often connected to high-pressure, low-temperature fluids and specific mineral assemblages.

Voine is commonly valued for its visual properties and rarity. In stories, it appears in jewelry and decorative inlays, and occasionally as a plot device related to energy or technology. It has no verified real-world presence.