The fiirst little fragment of the Mundrabilla meteorite (112 grams) was found in 1911 in Western-Australia, nearby the small town of Mundrabilla Siding in the Nullarbor Plain and it should take till the 1960ies to find out what a massive Meteorite must have fallen on earth, million years ago.
In April 1966 the two Geologists R.B. Wilson and A.M. Cooney, while on a gelogical survey in this region, found one of the largest meteorites ever found. The 12400 kilogram single largest fragment (officially called Mundrabilla I ) was accompanied in a distance of only 180 meters by a matching 5544 kilogram meteorite and in the near surroundings by a huge number of smaller fragments.
The Mundrabilla-Meteorite is 65-75% iron-nickel, including 35% by volume of troilite (iron sulphide), with inclusions of schreibersite, graphite and silicates, mainly olivine, pyroxene and potassium-rich plagioclase.
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