3819 Trinitite, Trinity site, White Sands Missile Range, New Mexico, USA

Not strictly a mineral but a rare man-made glass known as trinitite from the Trinity Site on White Sands Missile Range in New Mexico, USA which was the site of the first atomic bomb blast on July 16, 1945. Trinitite is the result of sand that was fused by the intense heat into a glass-like green solid.