Meteorite 4.5 Billion-Year-Old Space Rock (with Certificate) Iron meteorite, composed of nickel-iron metal. Meteorite officialy registered as "Campo del Cielo" Meteorite, size 0.4" (minimum) in a 1 1/8" x 1 1/8" case Certificate of Authenticity provided. We guarantee the origin and authenticity of this celestial objects, as members of the Meteoritical Society.