mineral

Iron Meteorite

Iron Meteorite (primarily Kamacite and Taenite, Fe-Ni alloys)

Hardness: 4-5 on Mohs scale; Color: Dark brown to black (fusion crust), silvery-grey inside; Luster: Metallic; Crystal structure: Isometric (Octaedrite/Hexahedrite); Cleavage: None; Specific Gravity: 7.0-8.0.

Hardness: 4-5 on Mohs scale
Color: Dark brown to black (fusion crust), silvery-grey inside
Luster: Metallic

Identified April 1, 2026More mineral →

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Physical properties

Formation & geological history

Formed in the molten cores of planetary embryos or asteroids in the early solar system roughly 4.5 billion years ago. They are delivered to Earth following catastrophic collisions in space.

Uses & applications

Scientific research, high-end collector specimens, and unique jewelry (slices used in watch faces or rings).

Geological facts

Many iron meteorites show a unique 'Widmanstätten pattern' of interlocking crystals when etched with acid. They represent the only access humans have to the core material of planetary bodies.

Field identification & locations

Identify by high density (very heavy for its size), strong attraction to magnets, and the presence of a fusion crust or 'regmaglypts' (thumbprint-like indentations). Common in desert or polar regions where dark rocks stand out.

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