The world’s largest meteorite, the Hoba or Hoba West meteorite lies on the farm “Hoba West”, not far from the town of Grootfontein, in the Otjozondjupa Region of Namibia. The Hoba meteorite was discovered in 1920 by the farmer while plowing the ground. It has been uncovered but, because of its large mass, has never been moved from where it fell. The main mass is estimated at more than 60 tonnes, making it the largest known meteorite (as a single piece) and the most massive naturally occurring piece of iron known at the Earth’s surface.
The meteorite is composed of about 84% iron and 16% nickel, with traces of cobalt. It is classified as an ataxite iron meteorite belonging to the nickel-rich chemical class IVB. A crust of iron hydroxides is locally present on the surface, owing to weathering.
The meteorite with its unusual cuboid form hit the earth – estimated 80.000 B.C. ago – at an very low angle, jumping like a stone on water from place to place until it reached its present position, which is why there is no crater around the meteorite. It is estimated the that age of the Hoba meteorite is around 200 – 400 million years old.