>There was also a very surprising artifact brought by one of the veterans: a lucite hemisphere with pieces of Trinitite embedded in it. The Trinitite is not so rare, but the lucite was cast in the same mold that made the plutonium pits for the Trinity and Fat Man bombs, and included the small hold [sic] for the neutron initiator.
The lucite object appears to be more of a momento
[edit: in the exact shape]
of the kernel of the fission process than a usable thing.
Trinitite is sand fused into glass from the heat of the first fission device at Trinity Site, New Mexico.
