iron meteorite

World English Dictionary
iron meteorite
 
n
a meteorite that is composed mainly of iron and nickel

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
iron meteorite  
See under meteorite.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

iron meteorite

any meteorite consisting mainly of iron, usually combined with small amounts of nickel. When such meteorites, often called irons, fall through the atmosphere, they may develop a thin, black crust of iron oxide that quickly weathers to rust. Though iron meteorites constitute only about 5 percent of observed meteorite falls, they are relatively easy to distinguish from terrestrial rock and last longer in soil than do stony meteorites; thus, they are found more often than stony or stony iron meteorites. (The latter, containing stone and iron in about equal amounts, are the rarest group of finds.)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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