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Weight:245.1grams
Size: 67.5*49.3*29.7MM
International name: Muonionalusta, commonly abbreviated as M-iron/Mandela meteorite iron
Classification: IVA fine-grained octahedral iron meteorite, asteroid iron core fragment
Discovery site: Lapland region of the Arctic Circle in northern Sweden, first discovered in 1906
Cosmic age: 4.565 billion years, one of the oldest meteorites in the solar system
Landing history: About 1 million years ago, it fell to Earth, undergoing four glacial erosions during the Ice Age, with a global scattered zone of about 25×15 km
Composition: 90% iron, 8.4% nickel, contains trace amounts of cobalt, phosphorus, iridium, gallium, non-radioactive, safe and harmless to wear close to the body
