magnetronien

Magnetronien is a hypothetical ferromagnetic mineral that appears in some works of science fiction, speculative geology, and hobbyist mineralogy. It is not listed by the International Mineralogical Association, and there is no peer‑reviewed evidence of its natural existence.

In descriptions, magnetronien is typically imagined as iron‑rich, often alloyed with nickel and cobalt, and sometimes containing traces of rare earth elements. The crystal structure is described as forming a robust metallic lattice that supports strong magnetic anisotropy and high remanent magnetization.

Reported properties include high saturation magnetization and high coercivity, enabling permanent‑magnet–like behavior after thermal cycling. Authors frequently assign a high Curie temperature and exceptional resistance to demagnetization. The material is usually portrayed as hard and brittle with a metallic luster.

In fiction, magnetronien is said to form under extreme pressures in deep crustal or mantle analogues, often associated with magnetized igneous rocks. Some narratives describe laboratory synthesis using high‑temperature, high‑pressure methods. Its imagined applications include ultra‑efficient permanent magnets, robust sensors, and space‑grade energy storage.

Because magnetronien is not a real mineral, references are limited to fictional or speculative sources. The concept is primarily used to explore ideas about magnetism, planetary formation, and the ethics of resource extraction in speculative contexts.