meteorite

Iron Meteorite

Siderite (Iron-Nickel Alloy)

Hardness: 4.0-5.0 on Mohs scale; Color: Dark brown/black fusion crust to metallic silver interior; Luster: Sub-metallic to metallic; Structure: Octahedrite or Hexahedrite; Specific Gravity: 7.0-8.0. Highly magnetic.

Hardness: 4
Color: Dark brown/black fusion crust to metallic silver interior
Luster: Sub-metallic to metallic

Identified July 21, 2026More meteorite →

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Physical properties

Formation & geological history

Formed in the molten cores of planetary embryos or large asteroids at the beginning of the solar system (approx. 4.5 billion years ago). These bodies were later shattered by collisions, releasing the metallic core fragments into space.

Uses & applications

Scientific research, high-end collector specimens, and occasionally used in custom jewelry or luxury cutlery (meteoritic steel).

Geological facts

Iron meteorites are composed primarily of iron and nickel. When etched with acid, many show a unique interlocking crystal pattern called 'Widmanstatten patterns' which cannot be replicated on Earth because they require millions of years of cooling.

Field identification & locations

Identified by high density, magnetic properties, and the presence of 'regmaglypts' (thumbprint-like depressions) caused by atmospheric ablation. Commonly found in arid desert regions or Antarctica where they are easily spotted.