Trinitite, also known as atomsite or Alamogordo glass, is the glassy residue left on the desert floor after the plutonium-based Trinity nuclear bomb test on July 16, 1945, near Alamogordo, New Mexico.
Chagan (nuclear test)
…site of the first United States nuclear weapon test in Alamogordo, New Mexico, the exposed rock and sand was melted into a glassy substance called trinitite. Sedan (nuclear test) – an American cratering detonation…
Trinitite
Pieces of trinitite
A near-hollow sample of trinitite backlit to show light passing through the material