Rock Identifier
Iron-rich meteorite candidate (Possibly an iron meteorite or stony-iron meteorite; unverified Fe–Ni alloy) — meteorite
meteorite

Iron-rich meteorite candidate

Possibly an iron meteorite or stony-iron meteorite; unverified Fe–Ni alloy

AI-generated identification · may be incorrect

Dark brown-black, dense-looking, irregularly fractured specimen with weathered oxidation; likely metallic or weakly metallic luster. If genuine iron meteorite, hardness is about 4–5 Mohs, specific gravity roughly 7–8, and metal commonly forms kamacite–taenite crystals; these properties cannot be confirmed visually.

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Physical properties

Dark brown-black, dense-looking, irregularly fractured specimen with weathered oxidation; likely metallic or weakly metallic luster. If genuine iron meteorite, hardness is about 4–5 Mohs, specific gravity roughly 7–8, and metal commonly forms kamacite–taenite crystals; these properties cannot be confirmed visually.

Formation & geological history

Iron meteorites formed from metallic cores of differentiated asteroids billions of years ago, then reached Earth as meteorites. The image alone cannot distinguish one from terrestrial iron slag, steel, or ironstone.

Uses & applications

Authentic meteorites are primarily collector and research specimens; iron meteorites may be cut, polished, and etched to reveal Widmanstätten patterns. Ordinary iron-rich rocks or slag have little market value.

Geological facts

The dark, rust-stained appearance is compatible with a meteorite but is not diagnostic. A strong magnet, unusually high density, and a nickel test are useful screening clues; a fresh cut and acid etch may reveal the Widmanstätten pattern.

Field identification & locations

Common candidates include iron meteorites, magnetite-rich rocks, hematite, and industrial slag. Check for vesicles, glassy texture, or flow features suggesting slag, and seek laboratory confirmation before claiming meteorite status.