Higanyt

Higanyt is a fictional mineral that appears in speculative fiction and hypothetical-material literature. It is used to illustrate how substances might behave under extreme pressures and temperatures and is not known to exist in the real world. In most depictions, higanyt is described as a dense, metallic substance with a bright luster and high hardness. Its supposed properties often include remarkable stability at extreme conditions and unusual electronic behavior, such as magnetism or superconductivity in certain portrayals, though these traits vary by author.

In the fictional accounts, higanyt is said to form in ultra-high-pressure environments, such as the deep mantles of massive exoplanets or during planetary-scale impacts and differentiation. Its occurrence is typically rare, associated with specific geochemical pathways or cosmochemical events, and it is sometimes linked to other exotic minerals as part of a speculative mineral assemblage.

There is no peer-reviewed evidence for higanyt's existence, and it is not recognized by real-world mineral databases. As a concept, it is commonly invoked in discussions about the limits of mineralogy, materials science, and the potential properties of matter at extreme conditions. When used in fiction, higanyt serves as a narrative device to explore energy storage, armor, or other applications imagined for a material with extraordinary density and resilience.