This Is How Humanity’s First Nuclear Explosion Created A New, Radioactive Mineral
Ethan Siegel
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““It was explicitly linked to the project of denying that the atomic bombings of Japan could have caused lingering radiation injury,” says Pfeiffer. If the experts could get across that this material—literally made by the bomb, and still swimming with bits of it—was not very dangerous, the rest would follow.

“Reporters… enthusiastically pocketed souvenirs bits of crater glass,” TIME reported. At least one, radio host George Cremeens, posed with a chunk of trinitite in one hand and a cigarette in the other. “