How do you tell if a rock is a geode without breaking it?

Test whether the rock has a hollow interior.
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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How can you tell a geode without breaking it?

Geodes are usually spherical, but they always have a bumpy surface. Geodes will sometimes have loose material inside, which can be heard when shaking the rock. You can also tap lightly with a stone or hammer to see if it sounds hollow.
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How can you tell real geodes?

To find geodes, look in riverbeds, limestone areas, and volcanic ash beds in countries where geodes are often found, like the United States, Mexico, Brazil, and Madagascar. When you're searching for geodes, look for rocks that are round or egg-shaped with a bumpy texture.
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What do geodes look like on the inside?

Calcite geodes contain white crystals, but sometimes these can be other colors, and under fluorescent light additional colors show up. Other examples of geode interiors include celestite, agate, smoky quartz and rose quartz. Chalcedony is a common mineral coating for many geodes, and it is permeable to water over time.
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Can you tell the inside of a geode from the outside?

Geodes are sphere-shaped rock formations that look very plain and ordinary on the outside, but if you break into their shells, you find that they are often hollow inside and filled with beautiful crystals and colors. Crystals have many flat sides to reflect light and that gives them their sparkle.
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How to SPOT a GEODE!! | Rock collecting for beginners!



What rocks have geodes in them?

Geodes can form in any cavity, but the term is usually reserved for more or less rounded formations in igneous and sedimentary rocks. They can form in gas bubbles in igneous rocks, such as vesicles in basaltic lava; or, as in the American Midwest, in rounded cavities in sedimentary formations.
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What is the rarest geode color?

The rarest and most valuable geodes contain amethyst crystals and black calcite.
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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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Where can I dig for geodes?

The finest concentration of geode sites in Southern California is in Riverside and Imperial counties. The most famous of these sites is called the Hauser Geode Beds, which are located at Wiley Well in the northern region of Imperial Valley, CA.
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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 to look for when hunting for crystals?

Areas on the planet's surface that show clear evidence of fault lines and uplifts offer an ideal location to hunt for crystals. Check the area for ribbons of white quartz, which can also be found near known granite and gold deposits.
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How long does it take for geodes to form?

How long does it take for a geode to form? Over thousands of years, these layers of minerals build crystals that eventually fill the cavity. How long this takes depends on the size of the geode. The largest crystals can take a million years to grow!
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How do you tell the difference between a geode and a rock?

Test whether the rock has a hollow interior.

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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Are geodes naturally purple?

Iron will give crystals a red or purple color, titanium will create blue, nickel or chromium leads to green, and manganese produces pink crystals. While geodes can be naturally colorful some are artificially dyed. These dyed stones often have a brighter, more intense color than what appears naturally.
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Is there an app to identify rocks?

The KamenCheck and the RockCheck apps are available for free on the Google play store and are adapted for use on Android devices (soon also planned for iOS).
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Is there an app to identify crystals?

Take a photo of any crystals or gemstones and get an instant accurate identification. This rock scanner app contains over 6000+ types of rocks and helps anyone who wants to recognize, examine and explore characteristics of stones in seconds. Ever wished you had a crystal identifier to identify the crystals you find?
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How do you clean geode rocks?

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.
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How much are unopened 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.”
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What kind of geodes are worth money?

The most valuable geodes are those that contain perfectly formed flawless crystals of amethyst, celestine, calcite, or other rare minerals. Geodes are worth from $2-5 for common specimens and up to several thousand for exceptional several meters.
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What is the difference between a Druzy and a geode?

Other Names for Druzy

In some cases, some people may use the term geode to refer to the crystal formations. However, geode refers to the multi-part stone structure, while druzy is technically limited to the crystal formations on the stone base. There are also several spelling variations that you may encounter.
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What color are geodes naturally?

Most geodes are brown or white: geodes that are very brightly colored are likely artificially dyed.
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How do you tell if a rock has been dyed?

Another thing you can look is the colors of the gemstone. If you observed that there are areas of the gemstone where the color is extremely concentrated than the other areas of the stone, then it's likely dyed.
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