Rock Identifier
Iron Meteorite (Siderite (Iron-Nickel alloy)) — meteorite
meteorite

Iron Meteorite

Siderite (Iron-Nickel alloy)

Hardness: 4-5 Mohs; Color: Dark brown/rust (weathered), silvery-grey (internal fresh surface); Luster: Metallic; Structure: Octahedrite/Hexahedrite; Specific Gravity: 7.0-8.0

Hardness
4-5 Mohs
Luster
Metallic
Identified More meteorite
Explore Iron Meteorite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Hardness: 4-5 Mohs; Color: Dark brown/rust (weathered), silvery-grey (internal fresh surface); Luster: Metallic; Structure: Octahedrite/Hexahedrite; Specific Gravity: 7.0-8.0

Formation & geological history

Formed in the molten cores of planetary embryos or asteroids billions of years ago. Found in impact sites. While the user's location (Visakhapatnam, India) is mainly metamorphic terrain (Eastern Ghats), meteorites can land anywhere globally.

Uses & applications

Scientific research, high-end collector specimens, and occasionally used in custom jewelry (Widmanstätten patterns).

Geological facts

Iron meteorites consist mostly of iron and nickel. They represent the core materials of early protoplanets that were shattered by massive impacts in the early solar system.

Field identification & locations

Identify by high density, magnetic properties, and presence of a fusion crust. Field testers use the 'window test' (grinding a corner) to look for a metallic interior and nickel testing.