Rock Identifier
Iron-rich meteorite candidate (possibly stony-iron meteorite) (Unclassified meteoritic material; apparent Fe-Ni metal with silicate matrix) — meteorite
meteorite

Iron-rich meteorite candidate (possibly stony-iron meteorite)

Unclassified meteoritic material; apparent Fe-Ni metal with silicate matrix

AI-generated identification · may be incorrect

Dark metallic to earthy brown, weakly metallic luster, irregular fractured surface, and apparent oxidation/rust. The image cannot establish hardness, density, magnetism, fusion crust, or Widmanstätten structure; these are essential tests.

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Physical properties

Dark metallic to earthy brown, weakly metallic luster, irregular fractured surface, and apparent oxidation/rust. The image cannot establish hardness, density, magnetism, fusion crust, or Widmanstätten structure; these are essential tests.

Formation & geological history

If genuine, it formed in a differentiated asteroid and may contain iron-nickel metal mixed with silicate minerals, later weathering terrestrially. A terrestrial ironstone, slag, or hematite-rich rock remains a strong alternative; age cannot be determined visually.

Uses & applications

Meteorites have scientific and collector value; iron-rich terrestrial rocks are mainly specimens or aggregate. Do not cut or acid-etch it until authenticated.

Geological facts

Potential clues include unusually high density, strong magnetism, rounded flight-worn shape, and a thin dark fusion crust with regmaglypts. Rust-colored patches commonly represent terrestrial weathering of meteoritic metal.

Field identification & locations

Test with a magnet, compare density, inspect for a continuous fusion crust, and seek nickel/elemental analysis or a recognized meteorite laboratory; a streak test and absence of bubbles help distinguish slag. Common meteorite finds occur in deserts and Antarctica, but this appearance alone is inconclusive.