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Mundrabilla Meteorite, from Australia (REF:M3)

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Mundrabilla Meteorite, from Australia (REF:M3)Mundrabilla Meteorite, from Australia
fell to Earth in Australia over 1 million years ago
IAB Iron Meteorite


Type: Iron

Group: IAB

First Found: 1911

Observed Fall: No

Country: Nullabor Plain, Western Australia

Fall Date: Over 1 Million Years Ago

Measurements Approx.
Height - 1.3 cm
Width - 2 cm
Length - 2.2 cm


In 1911 a fragment of meteorite was found by Harry Kent, a foreman in charge of camels for the survey of the transcontinental railway. It was found on the Premier Downs Station and was initially named after the station, with two other fragments found here. It has since been more commonly known as the Mundrabilla meteorite were further finds were made.


Fragments during the 1960’s were found north of Mundrabilla Siding on the Trans Australian Railway and what was at the time the 11th largest meteorite fragment found on Earth at 12.4 metric tones. 


Current thinking is that the Mundrabilla and Premier Downs finds were fragments of the same meteorite which appears to have disintegrated into fragments as it fell to earth, and these have been found over a wide area of the Nullabor desert. The areas remote nature and widespread distribution of fragments has meant their discovery has been a gradual affair.


  

The meteorite is 65-75% iron-nickel, which includes 35% by volume of Troilite (Iron Sulphide). It contains inclusions of schriebersite, graphite, and silicates which comprises mainly of pyroxene, potassium-rich plagioclase and olivine.


In March 2018 a report was published giving evidence of small traces of low temperature superconductivity in the largest 12.4 tonne mass. The superconductor is believed to be an alloy of indium, tin and lead. This discovery is significant because it proved a technique for finding superconductors that are naturally occurring. It was long believed that meteorites would be a good starting point in the search.




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