meteorite

Iron Meteorite

Siderite (Iron-Nickel Alloy)

High density, metallic luster (when cut), dark fusion crust, regmaglypts (thumbprint-like indentations), strongly magnetic, Mohs hardness 4-5.

Identified July 7, 2026More meteorite →

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Physical properties

High density, metallic luster (when cut), dark fusion crust, regmaglypts (thumbprint-like indentations), strongly magnetic, Mohs hardness 4-5.

Formation & geological history

Remnants of a planetary core (typically from differentiated asteroids) formed over 4.5 billion years ago in the early solar system. Their surfaces are shaped by atmospheric ablation upon entry.

Uses & applications

Scientific research on the early solar system, high-end collector market, and use in specialty jewelry/watchmaking (often showing Widmanstatten patterns).

Geological facts

Iron meteorites are composed mainly of iron and nickel. While they represent only about 5% of witnessed falls, they are the most common finds because they are distinct from terrestrial rocks and survive weathering better.

Field identification & locations

Check for a dark magnetic crust that is thin; use a nickel allergy test kit to check for nickel content. Verify density (iron meteorites are twice as heavy as common terrestrial rocks).