What's inside a geode?

The hollow interior often is nearly filled with inward-projecting crystals, new layers growing on top of old. The crystals are of quartz, less often of calcite or dolomite, and sometimes of aragonite, ankerite, hematite, magnetite, pyrite, chalcopyrite, and sphalerite.
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What is found inside geodes?

Most geodes contain clear quartz crystals, while others have purple amethyst crystals. Still others can have agate, chalcedony, or jasper banding or crystals such as calcite, dolomite, celestite, etc. There is no easy way of telling what the inside of a geode holds until it is cut open or broken apart.
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How much is a geode rock worth?

A geode can be worth anywhere from $5 to more than $1000, depending on its type and location. The price will vary widely based on whether the rock has been cut open because geodes often contain crystals inside of them which make them more valuable when exposed correctly (e.g., cutting along an axis).
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Are crystals in geodes worth anything?

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.”
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Do geodes have crystals inside?

A geode is a hollow rock lined with an inside layer of sparkling crystals. On the outside, geodes appear nondescript and are easily overlooked. However, cracking open a geode will display an array of colorful crystals.
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What's inside a Geode?



How old is the water in a geode?

This little lump of greyish stone has something very unusual and interesting in its core: a bubble containing water that has been trapped within the rock, maybe for as long as 200 million years.
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Do geodes keep growing?

No, you are right. They won't continue to grow. They need to be kept in a supersaturated solution to grow.
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How can I tell if my 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.
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How do you crack open a geode?

What is this? 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.
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Why is amethyst so cheap?

Good natural amethyst is not plentiful and is only low in value because about 80%+ of the amethyst floating around is synthetic. Testing to tell the difference between synthetic amethyst and natural is rather expensive, usually more so than the stone being tested, so most just skip it.
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What is the biggest geode in the world?

The 11-cubic-meter geode—the largest in the world, the researchers say—was discovered in 1999, in a long-closed mine near its namesake town. Some of the crystals are several meters long and are so pure that they're transparent, despite their thickness.
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Are amethyst geodes real?

These ultra-large geodes are naturally occurring wonders that are found from time to time in the Artigas region in Uruguay. This area is famous for producing these massive amethysts thanks to favorable environmental factors that include 120-million-year-old basalt—a volcanic rock—flows and mineral-rich groundwater.
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What are geodes used for?

Uses for Geodes

Geodes can be used for a multitude of purposes, including assistance with decision-making, facilitating communication between people in the same healing fields or with divine beings, creating good moods and energies, help with meditation, stress relief, and more.
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What crystal is most commonly found in geodes?

Most geodes contain clear quartz crystals, while others have purple amethyst crystals. Still others can have agate, chalcedony, or jasper banding or crystals such as calcite, dolomite, celestite, etc.
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How do you tell if a rock has a crystal inside?

Test whether the rock has a hollow interior.

Pick up the rock and assess its weight. If the rock feels lighter than that surrounding rocks, it may be a geode. 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.
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Where are the 2 largest geodes in the world?

There are two candidates that are claimed to hold the title of the world's largest geode. The Pulpi Geode in Spain and Ohio's Crystal Cave. There are also some other noteworthy amethyst geodes which have been discovered in Uruguay.
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Are Break Your Own geodes real?

The crystals inside will be consistently clean and sparkly with a variety of colors! Great family fun and educational for the kids! 100% naturally occurring geodes with real, genuine crystals!
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What does a geode symbolize?

The Many Uses of Geodes

Many see geodes as a feminine property due to the cavity which could represent the womb. Geodes can help communicate with divine beings and assist in creating better moods, balances, and energies that can help with meditation, stress, and decision-making.
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Where are geodes found?

Geodes are found all over the world, though they are most concentrated in desert regions. Other places where geodes are common are volcanic ash beds and areas containing limestone. There are geode collecting sites all over the U.S. in California, Utah, Arizona, Nevada, and Iowa.
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Are geodes rare?

Geodes are extremely valuable. Their unique formation history and enigmatic appearance make them desirable in every mineral collection. Sometimes geodes are praised for their rare mineral content.
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How do you identify 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.
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What should I look for when geode hunting?

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.
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What are some fun facts about geodes?

10 Interesting Facts About Geodes
  • Geodes can form in any cavity, but the term is usually reserved for more or less rounded formations in igneous and sedimentary rocks. ...
  • Geode banding and coloration is the result of variable impurities. ...
  • Geodes and geode slices are sometimes dyed with artificial colors.
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Can geodes be man made?

Fake geodes can be identified based on how they were manufactured. Synthetic versions lack flaws that are found in natural geodes, while composites and imitations often have evidence of bubbling, cracking, splotchy paint, artificial color, and leftover glue.
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How were geodes formed?

Geodes are formed when there are pockets of air within rocks. This often happens after volcanic eruptions when lava cools around air bubbles. These pockets leave space for groundwater to seep in. But the water itself doesn't produce geodes–it brings along minerals which stay in the rock even after the water evaporates.
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