Rock Identifier
Possible iron meteorite (Iron meteorite, likely kamacite–taenite alloy) — meteorite
meteorite

Possible iron meteorite

Iron meteorite, likely kamacite–taenite alloy

AI-generated identification · may be incorrect

Dark gray to black metallic surface with rusty brown oxidation and scattered pale gold metal; typically Mohs 4–5, metallic luster, very high density (~7–8 g/cm³), and no cleavage. The apparent pitted, weathered exterior may be a fusion crust or terrestrial oxidation, but the image alone cannot confirm it.

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Physical properties

Dark gray to black metallic surface with rusty brown oxidation and scattered pale gold metal; typically Mohs 4–5, metallic luster, very high density (~7–8 g/cm³), and no cleavage. The apparent pitted, weathered exterior may be a fusion crust or terrestrial oxidation, but the image alone cannot confirm it.

Formation & geological history

Iron meteorites formed from differentiated asteroid cores, crystallizing slowly over millions of years before being excavated by impacts and arriving on Earth; most are older than 4.5 billion years. Similar-looking terrestrial iron slag and sulfide-rich rocks are common alternatives.

Uses & applications

Authentic specimens are collected, studied, and occasionally cut or polished for display and jewelry; they have little construction or industrial use.

Geological facts

A diagnostic Widmanstätten pattern appears after cutting, polishing, and etching, not usually on the outer surface. Strong magnetism, unusually high density, and nickel detection support identification, while slag often contains abundant glassy vesicles.

Field identification & locations

Common finds include meteorite strewn fields in deserts and Antarctica; test with a magnet, compare weight, inspect a filed window, and seek nickel/elemental analysis. Do not rely on magnetism alone, since magnetite and slag can behave similarly.