The Muonionalusta Meteorite is classified as fine octahedrite, type IVA (Of). Its impact on earth was approximately 800.000 - 1 million years ago and the first fragments were found in 1906 near the little village of Kitkiöjärvi, around 180 kilometres north of the polar-circle. This strongly shock-metamorphosed iron meteorite has shown a content of 8.4% nickel and the rare elements—0.33 ppm gallium, 0.133 ppm germanium and 1.6 ppm iridium.