Rock Identifier
Possible iron-rich meteorite (Provisional: stony-iron or iron meteorite; mineralogy may include kamacite (α-Fe,Ni) and taenite (γ-Fe,Ni)) — meteorite
meteorite

Possible iron-rich meteorite

Provisional: stony-iron or iron meteorite; mineralogy may include kamacite (α-Fe,Ni) and taenite (γ-Fe,Ni)

AI-generated identification · may be incorrect

Dark brown-black, metallic to dull luster with rounded, melted-looking surfaces and possible fusion crust; suspected iron meteorites are dense, typically Mohs ~4–5, and may show magnetic response. The image alone cannot confirm metal content, crystal structure, or a Widmanstätten pattern.

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Physical properties

Dark brown-black, metallic to dull luster with rounded, melted-looking surfaces and possible fusion crust; suspected iron meteorites are dense, typically Mohs ~4–5, and may show magnetic response. The image alone cannot confirm metal content, crystal structure, or a Widmanstätten pattern.

Formation & geological history

If extraterrestrial, it formed in a differentiated asteroid’s metallic core or silicate-metal zone and reached Earth after atmospheric ablation; terrestrial weathering appears to have produced the brown coating. Age would commonly be ~4.5 billion years, but identification requires testing.

Uses & applications

Meteorites are collected and studied for planetary science; iron-rich pieces may be cut, polished, and displayed as specimens. They have no conventional construction use.

Geological facts

Shape and dark surface are compatible with a meteorite but also with terrestrial iron slag, hematite-rich rock, or weathered metal. A nickel test, density measurement, magnet test, and laboratory classification are important; a fusion crust alone is not diagnostic.

Field identification & locations

Commonly found as isolated stones in deserts, Antarctica, and cultivated fields; suspected meteorites often lack vesicles and may attract a magnet. Confirm with a streak test, density, nickel assay, and ideally thin-section or elemental analysis.