The meteorite weights approximately 60 tons and measures 2.95 by 2.84 meters. Not only the size and its weight that makes this single largest known meteorite in the world so unique but also its cuboid shape which is highly unusual amongst meteorites. It was declared a national monument in March 1955 but despite the fact still suffered from vandals over the years. The estimated age of meteorite is between 200 and 400 million years and it fell on Earth approximately 80 000 years ago. The meteorite consists of 82.4% iron, 16.4% nickel and 0.76% cobalt. The scientific classification of Hoba Meteorite is nickel-rich ataxite.