Trinitite is a glass produced during the first nuclear explosion, called Trinity, in Alamogordo, New Mexico, on July 16, 1945. Trinitite is a plutonium-based glassy residue formed in the desert. In the late 1940s and early 1950s, trinitite samples were sold to mineral collectors, but most were removed and buried by the United States Atomic Energy Commission in 1952. Trinitite is not harmful to health. Trinitite: Almogordo New Mexico 10 x 8 x 6 mm about 0.42 grams the piece for sale is what you see in photos! please be careful with the description and measures Standard shipping ( 2-7 days for Italy ) ( 10-20 days for Europe ) ( 15-40 days for rest of the world ) if you want fast shipping, please contact me immediately after the auction win