New Silicon-Calcium-Iron Clathrate Discovered in Trinity Test Glass

Physicists analyzing red trinitite from the Trinity test have identified a previously unknown silicon-calcium-iron clathrate, a nanoscale crystal structure formed by vaporized tower metals; confirmed with single-crystal X-ray diffraction and nanoscale imaging, this new phase could advance understanding of clathrates used in batteries, solar cells, and quantum devices, and provides a rare extreme-condition crystal for modeling.