Rock Identifier
Iron-rich meteorite candidate (weathered ironstone) (Likely oxidized Fe–Ni metal, possibly magnetite/hematite-bearing terrestrial ironstone; exact identification requires testing) — meteorite
meteorite

Iron-rich meteorite candidate (weathered ironstone)

Likely oxidized Fe–Ni metal, possibly magnetite/hematite-bearing terrestrial ironstone; exact identification requires testing

AI-generated identification · may be incorrect

Dark metallic-gray, strongly orange-brown from iron oxidation, irregular and apparently dense; probable metallic luster beneath weathering. Suspected iron meteorites are Mohs ~4–5, commonly magnetic, and may show a nickel-bearing metal matrix or Widmanstätten pattern when etched.

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Physical properties

Dark metallic-gray, strongly orange-brown from iron oxidation, irregular and apparently dense; probable metallic luster beneath weathering. Suspected iron meteorites are Mohs ~4–5, commonly magnetic, and may show a nickel-bearing metal matrix or Widmanstätten pattern when etched.

Formation & geological history

Could be a heavily weathered iron meteorite formed in a differentiated asteroid’s metallic core, typically billions of years old; alternatively it may be terrestrial hematite–magnetite ironstone or industrial slag. The photograph alone cannot distinguish these.

Uses & applications

Meteorites are mainly collected and studied; iron ores are used for steelmaking, while ironstone has limited ornamental or educational use.

Geological facts

Rust-like orange alteration is common in iron meteorites but also extremely common in terrestrial iron minerals. A magnet, streak test, density measurement, nickel analysis, and polished/etched examination are important.

Field identification & locations

Check for strong magnetism, unusually high density (~7–8 g/cm³), a non-red/brown streak, fusion crust, and regmaglypts; rule out slag and hematite. Common meteorite finds occur in deserts and Antarctica; terrestrial ironstone is widespread.