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Iron meteorite

Iron Meteorite AMNH/R.Mickens

Exhibition Text

A third relic of the ancient cosmos is this iron meteorite, Mungindi. It represents the core of an old planet whose heavy matter, in this case iron-nickel alloy, separated from the lighter silicate shell and sank to the interior.

Mungindi is composed of the iron-nickel alloys kamacite and taenite. Intergrowths of these minerals make up the distinctive pattern, known as Widmanstätten structure. The nodular masses are composed of the iron sulfide mineral troilite.

AMNH collection

For Educators

Topic: Astronomy

Subtopic: Planets

Keywords: Iron, Meteorites, Astronomy

Audience: General