A rare fragment of the Martian Zagami meteorite,
A rare fragment of the Martian Zagami meteorite,

Details
A rare fragment of the Martian Zagami meteorite,
-- ¼in. (0.6cm.) long

See Colour Illustration
Literature
VAN HOOSEAR, Todd E., "Zagami IS from Mars", Sky & Telescope's News Bulletin (East Lansing, 1995)
McSWEEN Jnr, Harry Y., "What we have learned about Mars from SNC meteorites", Meteorotics 29 (USA, 1994) pp.757-779

Lot Essay

The celebrated Zagami meteorite fell in the Katsina Province, Nigeria, on 3 October 1962. It landed about ten feet away from a farmer who was trying to chase away crows from his cornfield. The farmer was buffeted by a pressure wave, and upon investigation, found the 40lb meteorite imbedded approxiamtely two feet in the ground. It has been analysed as an achindrite Ca-rich euchrite (SNC) shergottite meteorite and belongs to the same group as those declared in 1999 by NASA as possibly containing traces of fossilised life-forms. The name initials SNC refer to the three types of achondrite meteorites: S stands for shergottite (this type), the first of which fell in the state of Bihar, India, in 1865, near the town of Shergotty. There are five known shergottites. The N stands for Nakhlites, after an example which fell in Nakhla, near Alexandria, Egypt, in 1911. And the C stands for Chassignite, from a meteorite which fell in Chassigny, France, 1815. It is believed that the Zagami meteorite was from the Martian crust, probably ejected by asteroid impact. It is a basalt, particularly rich in pyroxene and augite. Its long-presumed Martian origin was verified in 1995 when a team of scientists from the University of California, San Diego, analyzed the noble gases trapped in shock-melted glass shards beneath the fusion crust of the meteorite and found them to be similar to those gathered by the Viking expeditions of 1976. The Lot is accompanied by a certificate of authenticity signed by Russell Kempton, director of the New England Meteoritical Services, as well as a photocopy of the McSween article.

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