Iron meteorites: the closest you can get to touching Psyche
What iron and stony-iron meteorites are, why they matter for Psyche science, and what to check before buying one.
Published 2026-10-23
Psyche is out of reach until a spacecraft gets there in 2029.[2] But pieces of objects like it fall to Earth all the time — as iron and stony-iron meteorites.
Iron meteorites: pieces of ancient cores
Iron meteorites are made overwhelmingly of an iron-nickel alloy, usually as two minerals called kamacite and taenite. Most come from the cores of planetesimals.[7] That is exactly the kind of object scientists think Psyche may be, which is why iron meteorites are a key part of Psyche science.[1]
When many iron meteorites are cut, polished and etched, they reveal the Widmanstätten pattern: interlocking bands of kamacite and taenite that formed during extremely slow cooling from a molten state in the early Solar System.[8]
Stony-irons: metal meets rock
Pallasites contain large olivine crystals set in iron-nickel metal and are thought to represent mantle and core material from destroyed planetesimals.[10] Mesosiderites are breccias of roughly equal parts metal and silicate; as of 2014 only 208 were known.[9] Some researchers have suggested Psyche could be a mesosiderite parent body.[5]
Before you buy
- Look for a named meteorite and class. Reputable listings give the official meteorite name and classification (for example, an iron or a pallasite) rather than vague phrases like “space rock.”
- Ask about provenance and certificates. A certificate of authenticity from an established dealer is helpful, though it is not a guarantee.
- Be wary of bargains. Rare types such as pallasites, lunar and Martian meteorites are rarely cheap.
- Protect it. Iron meteorites can rust; keep them dry and handle polished faces with gloves or by the edges.
Want help choosing? Our meteorite buying guide suggests specimen types and display gear for your budget.
Numbered citations link to the sources list on the 16 Psyche overview page.