Named NWA 16788, this meteorite is believed to have been blasted off Mars by a colossal asteroid impact, hurtled 140 million ...

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

A massive Martian meteorite is set to be auctioned at Sotheby's in New York. The meteorite, named NWA 16788, weighs 54 pounds ...

The largest fragment of Mars ever discovered on Earth, a 54-pound meteorite named NWA 16788, is set for auction at Sotheby's in New York.

New York: For sale: A 25-kilogram rock. Estimated auction price: $US2 million to $US4 million ($6 million). Why so expensive?

The biggest piece of mars around 54-pound (25-kilogram) rock is up for auction in New York city. Its estimated auction price is about $2 million to $4 million.

Meteorites from Mars have fallen to Earth over the ages. ... Notice the olivine macrocrysts zoning and the variable composition of core olivine. Pyroxene is blue-green in the groundmass, ...

Most meteorites that have reached Earth come from the asteroid belt between Mars and Jupiter ... as sodium-rich plagioclase (such as albite), iron-poor pyroxene (for example enstatite), iron-poor ...

"It contains the minerals olivine, pyroxene and shock-transformed feldspar," which formed from the Mars impact that ejected it. RELATED CONTENT — When space attacks: The 6 craziest meteor impacts ...

MARS, METEORITES AND METHANE, OH MY Meteorites from Mars ... Both gases could be produced by water mixing with the minerals olivine and pyroxene in the rocks, the researchers say.

Sotheby's in New York will be auctioning what's known as NWA 16788 on Wednesday as part of a natural history-themed sale that ...

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