Rock Identifier
Weathered metallic rock, possibly iron-rich ore (Uncertain; possible goethite–hematite limonite or iron-nickel meteorite) — mineral
mineral

Weathered metallic rock, possibly iron-rich ore

Uncertain; possible goethite–hematite limonite or iron-nickel meteorite

AI-generated identification · may be incorrect

Dark brown to gray, rusty, strongly weathered surface with metallic glints; likely opaque and heavy. Hardness may range from 4–6.5 Mohs; definitive identification requires streak, magnetism, density, and chemical testing.

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Physical properties

Dark brown to gray, rusty, strongly weathered surface with metallic glints; likely opaque and heavy. Hardness may range from 4–6.5 Mohs; definitive identification requires streak, magnetism, density, and chemical testing.

Formation & geological history

Could form by oxidation of iron-bearing minerals near Earth’s surface, producing limonite/goethite, or represent a weathered metallic meteorite; age cannot be determined visually.

Uses & applications

Iron oxides are mined as iron ore and used in pigments; attractive specimens may be collected, but value depends on confirmed composition and provenance.

Geological facts

A magnet, streak test on unglazed porcelain, and specific-gravity measurement help distinguish iron ore from meteorite. Meteorites commonly show a fusion crust and regmaglypts, neither clearly diagnostic here.

Field identification & locations

Common iron oxides occur worldwide, especially in weathering zones and lateritic soils. A meteorite claim requires laboratory confirmation because terrestrial slag and ironstone can look similar.