Trinitite - From The Ralph Pray Collection

Trinitite is a glass fused from the first atomic bomb detonation outside of Alamagordo New Mexico in 1945. This piece is a small portion of around 2000 pounds collected by Raloh Pray in 1951 before it became illegal to collect. It is legal to own however.

You can get a further explanation for this material here: https://youtu.be/an6Jg7E4XVs