How to open a geode?

A very simple way to crack a geode is simply to place the geode inside of a sock or fabric bag to contain the soon to be broken pieces. With the geode in a bag, gently striking the geode with a rock-hammer, sledgehammer, or even a harder rock should facture the geode just enough to crack it open.

Asked by: Bryon Rodriguez

How can you tell a geode without opening it?

Geodes have a hollow space inside, which is what allows the crystals to form. You can also shake the rock next to your ear to test whether it is hollow. You may hear small pieces of rock or crystal rattling around inside if it is hollow.

How do you open a geode at home?


  1. Place the geode into the sock.
  2. Place the sock on a hard surface.
  3. Make sure you are wearing your safety glasses.
  4. Firmly tap the geode with the hammer until it breaks.
  5. Pour the broken pieces of geode from the sock and enjoy the beautiful crystals inside.

How do geodes look?

Geodes will look like plain old rocks on the outside, but as you know will have beautiful crystals on the inside, making them wonderful items to display in a display case. Geodes are very organic shaped rocks, so avoid pointy or narrow rocks.

Are geodes rare?

Every geode is unique, and they vary widely in color, and crystal formation. … The rarest and most valuable geodes contain amethyst crystals and black calcite.


People Also Ask

What states can you find geodes?

You can find geodes in California, Indiana, Utah, Iowa, Arizona, Nevada, Illinois, Missouri and Kentucky.

Are amethyst geodes rare?

Amethyst geodes have been stated to be significantly rarer. However, they are still as common as before. Amethyst geodes have now actually been made rarer, from 1 geode in 30 chunks to 1 geode in 53 chunks.

How do you know if a geode is worth money?

If the color of your geode is darker and richer you will see more value. Darker colored geodes are hard to come by and the amethyst and black calcite geodes can fetch a pretty penny. This one is easy to remember. The larger your geode is, the more valuable it is.

How do I identify a geode?

Recognizing Geodes. Look for rocks with a bumpy texture. When you’re searching, you want to look for lumpy rocks. Geodes have lots of bumps and texture to them, so steer clear of any rocks with a very smooth surface.

What is the largest geode ever found?

The Pulpi Geode In Spain

Located in an abandoned silver mine near the town of Pulpí, Spain this massive, 390 cubic foot (11 cubic meter) geode is said to be the largest in the world. It is 26 feet long, 6 feet wide, 5.5 feet high and lined with massive selenite crystals up to 6 feet long.

Are there different types of geodes?

Today we’re going to take a look at the variety of geode types available, so let’s get started.

  • Amethyst geode caves. The first type of geode is the Amethyst geode cave. …
  • Amethyst geode cathedral. …
  • Amethyst geode pairs. …
  • Uruguayan amethyst geodes. …
  • Agate geodes. …
  • Agate geode bookends. …
  • Agate friendship geodes.

How do you identify Thundereggs?

How to Spot Thundereggs? Though thundereggs appear lke rocks, they can be easily identified by the abnormally round and bumpy brown-gray surface. Usually, thundereggs lie relatively close to the Earth’s surface, embedded in the clay of the tuff, where they were formed.

How do you tell if a rock is a geode?

Tell-Tale Signs of a Geode

  1. Geodes are usually spherical, but they always have a bumpy surface.
  2. Geodes will sometimes have loose material inside, which can be heard when shaking the rock. …
  3. Geodes are usually lighter than their size would indicate since the interior doesn’t contain any material.

What are geodes worth?

Large amethyst geodes can go for thousands. Baseball sized geodes with non-spectacular quartz or calcite crystals can be purchased for $4-$12. Geodes with uncommon minerals that are sold on mineral auction sites range in price from $30-$500. Golf ball sized geodes, uncracked, are sold for about $2 at shows.”

Can you put geodes in a rock tumbler?

Soft rock, like the limestone that coats many geodes, can disintegrate easily in a tumbler. Limestone is basically calcium carbonate and does not polish well. Some agate or chalcedony geodes with thick rinds may be tumbled with a measure of success. You should not tumble rocks with varying hardness together.

How do you clean and crack a geode?

Set the geode on the concrete, place the chisel in the middle, and tap it very gently a few times with the hammer. Turn the geode a quarter turn and do this again. Continue scoring along the circumference of the geode until you see a crack form all the way around, then pull the two halves apart.

How do you sell geodes?

Whether you have a large collection of natural geodes that you’ve acquired or want to buy geodes wholesale, you can turn a profit by selling geodes to collectors and enthusiasts. There are several ways you can sell geodes, including selling on,, or setting up your own shop.

Where are geodes found?

Geodes are found throughout the world, but the most concentrated areas are located in the deserts. Volcanic ash beds, or regions containing limestone, are common geode locations. There are many easily accessible geode collecting sites in the western United States, including in California, Arizona, Utah and Nevada.

Can I break crystals?

Despite their structure, crystals are breakable. There are two schools of thought around crystal breakages. … The first — and most common — is that you simply don’t need the energy of that crystal in your life any longer.

How do I cut a geode in half?

Take a rock or masonry flat chisel, hold at top center of rock, then strike with a hand-held sledge hammer. Tap lightly, as to score the rock only. Rotate rock a bit, then strike again to create a line around the circumference of the stone. Repeat, as necessary, until the rock splits open.

Are geodes man made?

As with most popular or valuable objects, fake “geodes” have been manufactured by people and offered for sale as naturally-formed objects.

How do you clean the inside of a geode?

EASY METHOD: Simply wash the geodes in plain water with a bit of laundry detergent (or dish soap), then let them soak in a tub of water with 1/4 cup of ordinary household bleach for two days. This cleans most of the heavy grit off the geodes.

What type of rock is a geode?

A geode (/ˈdʒiː. oʊd/; from Ancient Greek γεώδης (geṓdēs) ‘earthlike’) is a geological secondary formation within sedimentary and volcanic rocks. Geodes are hollow, vaguely spherical rocks, in which masses of mineral matter (which may include crystals) are secluded.