The largest-discovered fragment of a Russian meteorite, weighing around 570 kilograms, has been lifted from the bed of Lake Chebarkul in the Urals.
The huge meteorite chunk split into three pieces when scientists
tried to weigh it. The precise weight could not be established
because the heavy object broke the scales.
“The preliminary examination... shows that this is really a fraction of the Chelyabinsk meteorite. It’s got thick burn-off, the rust is clearly seen and it’s got a big number of indents. This chunk is most probably one of the top ten biggest meteorite fragments ever found,” said Sergey Zamozdra, associate professor of Chelyabinsk State University, as cited by Interfax news agency.
He explained that it was important to establish the weight of the
fragment in order to learn more about the qualities of the whole
of the meteorite.
The lifted chunk was taken to the regional natural history
museum. The plan is to have a small sample of it X-rayed to
determine what minerals it consists of.
Several earlier attempts to raise this massive chunk of meteorite, found by divers at the beginning of September, failed.
The divers’ mission was hampered by a number of factors. The meteorite fragment lay 20 meters under water, buried under a thick layer of mud.
Estimates concerning the layer of sediments covering the chunk
were more optimistic than what the divers actually had to deal
with. It took them 10 days to pump the mud away from the rock.
The divers had to do their job in conditions of zero visibility,
due to the extremely muddied waters of the lake. Storms further
contributed to delays in lifting the celestial body.
The largest lifted chunk of meteorite so far weighed 11
kilograms. Scientists on Wednesday confirmed its extraterrestrial
A huge meteorite, weighing around 11,000 tons, exploded over the Chelyabinsk region in Russia on February 15. It injured more than 1,600 people, and inflicted plenty of damage - around a billion rubles ($31 million) worth and also caused mass media frenzy.
Overall 12 alleged pieces of meteorite have so far been raised from the lakebed. Five of them were confirmed as meteorite fragments.