Iron meteorites are one of the most durable and easiest
to recognize of all the meteorites, but only one in ten meteorites that fall from the sky is of theiron variety. The other 90%
are stone meteorites. Iron meteorites are fragments of the once-molten metal core of an asteroid or demolished moon
probably from the asteroid belt. As these moons cooled, their cores crystallized and through later collisions, were
destroyed. Chemically, they are an alloy, or combination, of iron (Fe) and
nickel (Ni), of approximately the same density
and hardness as a blacksmith's anvil.