mineral

Iron Meteorite (Candidate)

Iron Meteorite (Siderite)

Hardness: 4-5.5 (Mohs scale); Color: Dark brown to metallic silver-grey; Luster: Metallic to dull (oxidized); Crystal structure: Octahedral or hexahedral; Specific gravity: 7.0-8.0 (dense/heavy).

Hardness: 4-5
Color: Dark brown to metallic silver-grey
Luster: Metallic to dull (oxidized)

Identified June 19, 2026More mineral →

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Physical properties

Hardness: 4-5.5 (Mohs scale); Color: Dark brown to metallic silver-grey; Luster: Metallic to dull (oxidized); Crystal structure: Octahedral or hexahedral; Specific gravity: 7.0-8.0 (dense/heavy).

Formation & geological history

Formed from the core of differentiated planetary bodies or large asteroids that shattered during collisions in the early solar system. They often feature an oxidized exterior called a fusion crust.

Uses & applications

Scientific research, high-end collector market, limited use in specialized jewelry (slices showing Widmanstätten patterns), or historical tool making.

Geological facts

Iron meteorites are composed primarily of nickel-iron alloys like kamacite and taenite. When etched with acid, many reveal geometric patterns called Widmanstätten patterns which cannot form on Earth.

Field identification & locations

Identify by magnetic pull, high weight-to-volume ratio (unusually heavy), and potential presence of 'regmaglypts' (thumbprint-like indentations). Use a nickel-testing kit for verification.

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