Rock Identifier
Polished iron-rich meteorite (probable Sikhote-Alin-type iron meteorite) (Fe–Ni kamacite/taenite alloy, with possible troilite inclusions) — meteorite
meteorite

Polished iron-rich meteorite (probable Sikhote-Alin-type iron meteorite)

Fe–Ni kamacite/taenite alloy, with possible troilite inclusions

AI-generated identification · may be incorrect

Metallic dark brown-black surface with rounded natural ablation pits, oxidation staining, and scattered pale inclusions; Mohs hardness about 4–5, metallic luster, crystalline iron-nickel structure, no cleavage, and specific gravity typically 7.3–7.8.

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Physical properties

Metallic dark brown-black surface with rounded natural ablation pits, oxidation staining, and scattered pale inclusions; Mohs hardness about 4–5, metallic luster, crystalline iron-nickel structure, no cleavage, and specific gravity typically 7.3–7.8.

Formation & geological history

Likely an atmosphericly melted and ablated iron meteorite, formed in a differentiated asteroid’s metallic core roughly 4.5 billion years ago; the exact meteorite cannot be confirmed from an image alone.

Uses & applications

Primarily a collector specimen, occasionally cut and polished for jewelry or display; not used industrially in this form.

Geological facts

Iron meteorites commonly show Widmanstätten figures after etching, while fresh falls may retain thumbprinted regmaglypts and fusion crust. A magnet should attract it strongly, but terrestrial iron slag can look similar.

Field identification & locations

Common sources include Sikhote-Alin, Russia; Campo del Cielo, Argentina; and Canyon Diablo, Arizona. Confirm with a strong magnet, density measurement, nickel testing, and professional meteorite analysis; avoid destructive tests.