5 ways to break open a whole geode

5 Ways to Break Open Whole Geodes: A brief guide

If you ask us, geodes are nature's hidden treasures.  We absolutely love cracking open a whole geode to see what sort of amazing crystals we will find inside.

A geode is a geological wonder, a seemingly ordinary rock on the outside that harbors a breathtaking world of crystals and minerals within. These spherical or oblong formations are created through a fascinating natural process that takes place over thousands to millions of years.  They conceal dazzling crystals and minerals within their nondescript exteriors.

Gedoes cracked open using a stone chisel and hammer

Cracking open a geode is a thrilling experience that reveals the stunning secrets hidden beneath the surface. Here we'll explore the various methods of cracking open geodes and discuss essential safety practices to ensure a successful and enjoyable cracking adventure.


  1. Geode Cracker (Soil Pipe Cutter):

One of the most efficient tools for cracking open geodes is the geode cracker, also known as a soil pipe cutter. This specialized tool is designed to break through the outer layer of a geode without damaging the crystals inside. This method is most likely to break the geode into two pieces without needing to cut the geode open.  It's also best for geodes that are harder to crack with a hammer and chisel alone (such as Druzy mist, Las Choyas/Coconut, or Ojo de Sonora geodes).

To use a geode cracker, simply place the geode in the chain jaws of the tool and tighten the cutter until it breaks open the rock, revealing the beautiful interior.  These tools are relatively expensive, but readily available online.

  1. Hammer and Stone Chisel:

A classic and straightforward method for cracking geodes is using a hammer and stone chisel (doesn't have a sharp edge like wood chisels). Place the geode on a flat surface.  You will want the geode to be somewhat stable on its own, so putting a flatter side down if you are doing it solo might be necessary.  Start by placing the chisel on the geode's surface and gently tapping it with a hammer to create a notch or even a crack. If you know exactly where you would like the geode to crack, create several notches along the line or path of where you want it to split. Gradually increase the force until the geode splits open. Exercise caution to avoid damaging the crystals inside during the process.

  1. Hammer and Screwdriver:

For a more budget-friendly approach, a hammer and screwdriver can also be employed to crack open geodes. Similar to the hammer and chisel method, carefully tap the screwdriver along the geode's surface until it begins to crack. Be patient and attentive to avoid shattering the geode and its contents.  If you want to go even lower budget, just a hammer can also work, but you are unlikely to get a geode split into two pieces.  Instead, it's more likely to break into multiple smaller pieces as there is less control.  When using this method, you can cover the geode with a towel or rag to protect yourself and your surroundings from any flying rock fragments.

Crystal Canyon geode with needle quartz

Crystal Canyon Geode with needle quartz
  1. Slab Saw:

For those with access to specialized lapidary equipment, a slab saw can be a precise and controlled method for cutting geodes. This method allows you to create clean cuts and preserve the integrity of the crystals within. However, this equipment may not be readily available to all enthusiasts.  This is the best method if you plan to polish the face of the cracked geode.

Geode cut open with a slab saw and polished

This geode was cut open using a slab saw and face polished.
  1. Wet Tile Saw:

A wet tile saw, commonly used in construction, can also be repurposed for cutting geodes and other stones. The water-cooled blade minimizes dust and heat, providing a smoother cut. The cutting depth of a tile saw is rather limited, so this method is best for smaller geodes.  Ensure that you follow safety guidelines and wear appropriate protective gear when using any cutting tools.


Safety Practices:

Regardless of the method chosen, it's crucial to prioritize safety when cracking open geodes. Here are some key safety practices to keep in mind:

  • Wear safety goggles to protect your eyes from flying rock fragments.
  • Use gloves to shield your hands from sharp edges.
  • Work in a well-ventilated area or wear a dust mask to avoid inhaling particles.
  • Keep a firm grip on your tools to maintain control during the cracking process.
  • Always be aware of your surroundings and the potential for flying debris.


Cracking open a geode is a thrilling and rewarding endeavor that allows you to uncover the beauty hidden within these geological wonders. Whether you choose a geode cracker, hammer and chisel, or another method, practicing safety is paramount to ensure a successful and enjoyable cracking experience. So, gear up, follow the guidelines, and embark on a journey to reveal the breathtaking crystals concealed within geodes.


If you are looking for geodes to begin your cracking adventures, check out our Geode Smash Set which includes four different kinds of geodes!  Or, choose your favorite kind here.

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