One specimen of Trinitite
Sizes are approx 10mm x 8mm - 10mm
On the fateful day of July 16, 1945, the first Atomic Bomb was detonated at the Trinity site in New Mexico. The resulting fireball scorched the desert sand and formed depressed crater about 800 yards in diameter which was lined with a fused green glass which is called Trinite. This impact Glass is very limited in quantity since the original site was covered over some years ago.