
meteorite
Iron meteorite fragment
Fe-Ni meteorite, likely an iron meteorite or stony-iron fragment
AI-generated identification · may be incorrectMetallic gray-black matrix with rusty brown oxidation; likely dense, magnetic, and much harder than ordinary rust. Polished iron meteorites commonly show a nickel-iron alloy and, when etched, Widmanstätten patterns; exact properties cannot be confirmed from the image.
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Physical properties
Metallic gray-black matrix with rusty brown oxidation; likely dense, magnetic, and much harder than ordinary rust. Polished iron meteorites commonly show a nickel-iron alloy and, when etched, Widmanstätten patterns; exact properties cannot be confirmed from the image.
Formation & geological history
Formed in the metallic core of a differentiated asteroid and crystallized over geological time, then survived atmospheric entry and weathering on Earth. The brown surface is terrestrial oxidation (limonite/goethite).
Uses & applications
Primarily a collector specimen, educational object, or jewelry material; iron meteorites are sometimes cut, polished, and etched for display.
Geological facts
The irregular dark fusion-crust-like exterior and heavy rusty metal appearance are consistent with a meteorite, but slag, weathered iron ore, or industrial metal are plausible alternatives without testing.
Field identification & locations
Check for strong attraction to a magnet, unusually high density, a thin fusion crust, and absence of bubbles; a nickel test and laboratory analysis are more reliable. Common finds occur in deserts, Antarctica, and cultivated fields.
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