Rock Identifier
Likely iron meteorite fragment (Iron meteorite, principally kamacite (α-Fe-Ni) with taenite (γ-Fe-Ni)) — meteorite
meteorite

Likely iron meteorite fragment

Iron meteorite, principally kamacite (α-Fe-Ni) with taenite (γ-Fe-Ni)

AI-generated identification · may be incorrect

Dark metallic gray-brown, irregular fractured surfaces, weakly metallic luster, and likely high density; kamacite hardness is about 4–5 Mohs. The image alone cannot confirm nickel content, fusion crust, or Widmanstätten structure.

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Physical properties

Dark metallic gray-brown, irregular fractured surfaces, weakly metallic luster, and likely high density; kamacite hardness is about 4–5 Mohs. The image alone cannot confirm nickel content, fusion crust, or Widmanstätten structure.

Formation & geological history

Formed in the metallic cores of differentiated asteroids billions of years ago, then liberated by impacts and surviving atmospheric entry. It may be a terrestrial iron-rich rock or industrial slag unless analytical tests confirm extraterrestrial origin.

Uses & applications

Meteorites are valued primarily by collectors and researchers; iron meteorite slices are polished and etched to reveal Widmanstätten patterns. Iron-rich terrestrial rocks have limited ornamental or industrial use.

Geological facts

Strong attraction to a magnet and a nickel-positive chemical test support identification, but neither alone proves a meteorite. A clean cut, polish, and acid etch are typically needed to reveal the crystalline pattern.

Field identification & locations

Common possibilities include iron meteorite, magnetite-rich hematite, or slag; inspect for regmaglypts, fusion crust, unusual density, and absence of vesicles. Confirm with specific gravity and laboratory nickel/elemental analysis.

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