Rock Identifier
Possible iron meteorite fragment (Iron–nickel meteorite, likely kamacite–taenite alloy) — meteorite
meteorite

Possible iron meteorite fragment

Iron–nickel meteorite, likely kamacite–taenite alloy

AI-generated identification · may be incorrect

Small, dark gray-brown, rounded metallic-looking specimen with subdued luster; apparent hardness about 4–5.5 Mohs, high density, and no visible crystal faces. The image is insufficient to confirm metallic composition or magnetic response.

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Physical properties

Small, dark gray-brown, rounded metallic-looking specimen with subdued luster; apparent hardness about 4–5.5 Mohs, high density, and no visible crystal faces. The image is insufficient to confirm metallic composition or magnetic response.

Formation & geological history

If genuine, it formed in the differentiated metallic core of an asteroid and crystallized over geological time before falling to Earth; terrestrial weathering may produce the brown surface. Exact meteorite age and classification require laboratory testing.

Uses & applications

Primarily a collector specimen; scientifically valuable if authenticated. Iron meteorites can be cut, polished, etched, and displayed to reveal Widmanstätten patterns.

Geological facts

Many terrestrial iron-rich rocks, slag, and industrial metal fragments resemble meteorites. A strong magnet, unusually high density, fusion crust, and a nickel test provide useful clues, but none alone proves authenticity.

Field identification & locations

Check for a thin dark fusion crust, regmaglypts, attraction to a strong magnet, and lack of vesicles; avoid destructive tests initially. Professional analysis using density, nickel chemistry, and microscopy is recommended.