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Meteorite from Mercury

Scientists May Have Discovered the First Meteorite from Mercury

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A green rock, named NWA 7325, discovered in Morocco last year may be the first known meteorite that has come from the planet Mercury.

Meteorite scientist Anthony Irving, professor at the University of Washington, has dated the rocks to an age of about 4.56 billion years.  According to Irving, a large impact could have shot NWA 7325 out from Mercury to Earth.

The space rock does not resemble anything documented by scientists to date – it has a lower magnetic intensity than any other rock yet found and Mercury’s low magnetism closely resembles that found in NWA 7325.  Evidence suggests that the rock could have been formed as ‘scum’ on the top of magma.

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