An international research team identified an unprecedented set of atomic structures in rare red fragments of Trinitite—the glassy residue formed at the site of the Trinity nuclear bomb test—reporting a never-before-seen crystal alongside a natural quasicrystal with dodecagonal symmetry composed of calcium, copper, and silicon. Led by Italian geologist Luca Bindi of the University of Florence, the team describes how the clathrate's cage-like lattice encloses calcium atoms within silicon