Meteorite Hunting With Metal Detector

searching for meteorites underground

If you’re hunting meteorites with a metal detector, you’ll only detect iron and stony-iron types — purely stony meteorites won’t trigger a signal. You should run your detector in true All-Metal mode, since discrimination settings can reject iron-nickel signals entirely. Pulse Induction detectors work especially well due to their discrimination-free operation. Arid regions and established strewn fields give you the best recovery odds. There’s much more to mastering your technique and confirming what you’ve found.

Key Takeaways

  • Iron and stony-iron meteorites contain iron-nickel, making them detectable; purely stony meteorites will not trigger a metal detector.
  • Use true All-Metal mode, as discrimination settings can reject iron-nickel signals and cause you to miss meteorites.
  • Pulse Induction detectors are ideal for meteorite hunting, offering reliable all-metal detection regardless of soil mineralization.
  • Search established strewn fields or arid regions, where meteorites are easier to locate and visually identify.
  • Test your detector with a 0.25-inch steel shot before searching to confirm proper sensitivity to iron content.

Why Metal Detectors Can Find Meteorites

Metal detectors can find meteorites because two of the three meteorite types—iron and stony-iron—contain significant concentrations of iron-nickel, making them responsive to electromagnetic detection.

Metal detectors can locate meteorites because iron and stony-iron varieties contain iron-nickel, making them electromagnetically detectable.

Understanding meteorite classification helps you target the right specimens; purely stony meteorites won’t trigger your detector, but iron and stony-iron varieties will produce reliable signals.

Detector calibration directly determines your success rate. You’ll need to operate in true All-Metal mode, eliminating discrimination settings that would otherwise reject iron-nickel signatures.

Pulse Induction detectors are particularly effective because they’re inherently discrimination-free, always running in All-Metal mode.

Gold prospecting detectors push this advantage further, operating at higher frequencies that detect smaller fragments at greater depths.

Once you’ve calibrated correctly, you’re equipped to identify what the ground conceals.

Where to Hunt for Meteorites

Choosing the right location dramatically increases your recovery odds. Target established strewn fields—zones where multiple meteorites from a single fall have already been recovered. These areas validate your meteorite classification assumptions before you even swing a coil.

Deserts and arid regions offer distinct advantages. Lighter-colored soil composition creates high visual contrast against dark meteorites, and wind erosion removes loose topsoil, exposing specimens on desert pavement—compacted gravel layers ideal for systematic scanning.

Northern Sweden’s Muonionalusta strewn field covers a 15×25 km forested area, requiring deep excavation due to dense ground cover. Monitor weather radar for bright signatures indicating fresh falls, and track recent meteor sighting reports.

Fresh fall sites dramatically improve your chances of recovering unweathered, scientifically valuable specimens.

Which Metal Detector Should You Use?

Not all metal detectors perform equally in meteorite hunting—your detector selection directly determines recovery depth, sensitivity, and target discrimination capability. You’ll want a machine operating in true All-Metal mode, since discrimination circuits eliminate signals from meteoritic material.

Pulse Induction detectors give you a structural advantage—they lack discrimination entirely, always running in All-Metal mode.

Gold prospecting detectors operate at high frequencies, detecting smaller fragments at greater depths than conventional units.

For coil selection, a 9″-11″ elliptical configuration optimizes surface sensitivity, while a 15″ coil trades small-target detection for depth penetration.

Sites carrying historical sightings and cultural significance—like the Muonionalusta strewn field—reward hunters using gold prospecting detectors over standard machines.

Your equipment choice ultimately controls what you recover and what stays buried.

What Coil Size Works Best for Meteorite Hunting?

Coil size directly controls the tradeoff between sensitivity and depth penetration, so you’ll need to match your selection to the target conditions.

Consider these four operational factors:

  1. 9″–11″ elliptical coils deliver *ideal* sensitivity for surface meteorites, picking up small fragments other setups miss.
  2. 15″ coils penetrate deeper but sacrifice detection of small pieces, making them better for known burial zones.
  3. Coil material affects ground interference responses, so verify your coil’s composition suits mineralized desert terrain.
  4. Coil maintenance directly impacts signal accuracy — inspect for cracks, clean contacts regularly, and secure cable wrapping to prevent false readings.

You’re balancing coverage area against fragment size detection. In strewn fields, where small pieces dominate, the 9″–11″ elliptical remains your most *suitable* independent choice.

How to Test Your Detector Before You Go

Before heading out, you’ll want to confirm your detector can actually pick up the iron content present in most meteorites. Grab a 0.25-inch steel shot and run it past your coil.

Set discrimination to its lowest possible level. If your machine signals on the steel shot, it’s calibrated correctly for meteorite detection. No signal means you’ll miss iron-bearing targets in the field.

Detector calibration also involves accounting for soil conductivity at your target location. High-mineralization ground can mask weak signals, so adjust your ground balance accordingly before committing to a long session.

Gold prospecting detectors handle variable soil conductivity better than conventional units, detecting targets at greater depths. Pulse Induction models eliminate discrimination entirely, giving you a reliable all-metal response every time you sweep.

How to Search a Strewn Field Effectively

Once you’ve located a confirmed strewn field, systematic grid coverage determines how much ground you’ll recover. Mark boundaries using GPS waypoints, then work parallel lanes spaced coil-width apart.

Systematic grid coverage maximizes recovery — mark GPS boundaries, then work precise, parallel lanes spaced coil-width apart.

  1. Set your detector to true All-Metal mode — discrimination masks iron-nickel signals entirely.
  2. Use a 9″-11″ elliptical coil — ideal sensitivity catches smaller surface fragments conventional hunters miss.
  3. Flag every signal before digging — this prevents soil contamination from spreading across adjacent recovery zones.
  4. Document exact GPS coordinates upon recovery — meteorite preservation depends on recording precise spatial data for scientific analysis.

Extend your sweeps up to 8 hours, hip-mounting your detector to sustain endurance. Move deliberately, overlap each pass slightly, and never rush flagged targets — contaminated recovery sites compromise both identification accuracy and specimen integrity.

How to Tell If You’ve Found a Real Meteorite

identify meteorites through tests

When your detector signals a target, your first diagnostic step is weight comparison — meteorites are substantially denser than surrounding terrestrial rocks of equivalent size. Hold the specimen against similar-sized local rocks; anomalous heaviness indicates potential meteorite classification.

Next, visually inspect the surface. Authentic specimens typically display a dark fusion crust formed during atmospheric entry. Environmental interference complicates identification — magnetite and other terrestrial minerals trigger false signals and visually mimic meteorites.

Apply a magnet directly to the rock. Iron-nickel meteorites respond strongly; stony meteorites produce moderate attraction. Black rocks appearing contextually displaced within their environment warrant serious examination.

Ultimately, field identification remains preliminary. You must submit the specimen to a certified laboratory for definitive testing — no visual or magnetic assessment alone constitutes confirmed meteorite classification.

Frequently Asked Questions

How Do I Legally Obtain Permission to Hunt Meteorites on Private Land?

“Ask and you shall receive” — contact landowners directly, negotiate meteorite ownership rights in writing, and secure signed agreements respecting private land rights before you hunt. You’ll gain legal access while preserving your freedom to keep discoveries.

What Permits or Regulations Apply to Meteorite Hunting in National Parks?

You can’t hunt meteorites in national parks without permits, as strict regulations prohibit removal of historical meteorite finds. Meteorite classification as federal property means you’d face legal consequences, so always check NPS guidelines before exploring protected lands.

Can Meteorite Hunting Damage or Disturb the Surrounding Natural Environment?

Like Pandora’s box, yes, you can cause environmental impact and ecological disturbance by digging deep holes in forests and removing topsoil, disrupting natural habitats, compacting soil layers, and disturbing wildlife ecosystems during extended hunting sessions.

How Much Is a Recovered Meteorite Typically Worth on the Open Market?

Meteorite valuation varies wildly—you’re looking at $0.50 to $1,000+ per gram depending on type and rarity. Market demand drives iron meteorites lower, while rare pallasites command premium prices, giving you significant profit potential.

Are There Organized Meteorite Hunting Clubs or Communities I Can Join?

You’ll find active communities like the Meteoritical Society, where you can access meteorite classification databases and historical meteorite finds. These groups connect hunters, share strewn field data, and provide analytical resources to sharpen your recovery expertise independently.

References

Jason Smith

About the Author

Jason Smith

Jason Smith is a US Marine Veteran, Senior IT Administrator with 30+ years in technology and automation, and the published author of 33 metal detecting books available on Amazon. He founded the Treasure Valley Metal Detecting Club to help others get into the hobby and shares everything he has learned about gear, technique, and finding history in the ground.

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