Just out of curiosity, where could one get a hold of authentic Trinitite from the original blast? My university Geology department has one under a glass case, and for some reason I'm itching to own a piece. Seems like an awfully suitable trinket for a physics major to have. I see them on ebay, but I'm way to skeptical for that. And most of the sites that appear to be selling it are right in that "are they frauds, or just bad at making websites?" zone that makes me uncomfortable. Or they offer so many certificates of authenticity that I feel like they're overcompensating. Anyway, I didn't know where else to ask. Seemed like someone around might know more.