
mineral
Weathered metallic rock, possibly iron-rich ore
Uncertain; possible goethite–hematite limonite or iron-nickel meteorite
AI-generated identification · may be incorrectDark 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.
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