Overview
- Researchers led by Luca Bindi reported on Aug. 6, 2026 that they found a previously unknown multicomponent metal alloy inside a microscopic hiroshimaite grain recovered from Hiroshima Bay.
- The tiny metallic fragment, about one micron across, contains iron, chromium, nickel, manganese, molybdenum, silicon and aluminium and shows an internal ordering that is nearly a quasicrystal.
- The team examined 34 glassy spherules with scanning electron microscopy and X‑ray diffraction and found the novel phase in a single grain, highlighting the alloy’s rarity.
- Scientists infer the alloy condensed from vaporized urban materials in the nuclear fireball and froze under ultrafast cooling, a process that produced a metastable structure not seen in ordinary alloys.
- The finding echoes an earlier quasicrystal discovered in Trinity test debris and raises both research opportunities for extreme‑condition materials and calls for ethically managed, legally compliant follow‑up studies rather than unregulated excavation of blast sites.