Identification in the Field: Meteorite or Meteorwrong?
Apply quick, non-destructive checks to separate likely meteorites from common lookalikes.
Who this is for
Hunters regularly finding suspicious rocks and wanting better first-pass classification.
Why it matters
Most candidates are meteorwrongs. A disciplined identification routine saves time, protects samples, and reduces unnecessary testing costs.
What you'll learn
- Which signs are useful and which are overhyped.
- How to avoid common impostors.
- When to escalate to expert review.
High-signal indicators
Fusion crust, unusual density, and magnetic behavior can all be meaningful in combination. No single feature is definitive on its own.
Surface texture cues such as regmaglypt-like features are supportive but not conclusive. Always evaluate multiple lines of evidence together.
Frequent meteorwrongs
Industrial slag and iron-rich terrestrial rocks produce many false positives. Weathering can also create dark surfaces that mimic true crust at a glance.
Treat every candidate as unknown until your checklist says otherwise. This mindset reduces confirmation bias in the field.
Non-destructive field tests
Use simple tests first: magnet response, apparent density by hand, and careful visual inspection under natural light. Record observations before further handling.
Avoid destructive testing in the field. Premature cutting or grinding can damage scientifically important surfaces and reduce credibility.
When to seek formal confirmation
Escalate when multiple indicators align and provenance notes are solid. Expert review is most effective when you provide clean metadata and photos.
If uncertain, preserve the sample and context anyway. A well-documented uncertain sample is far better than a poorly documented confident guess.
Common mistakes
- Declaring meteorite status from magnetism alone.
- Damaging candidates before documentation.
- Discarding uncertain samples without records.
Field checklist
- Photograph candidate in place first.
- Label bag with coordinates and time.
- Record confidence level and why.