What countries have geodes?
Geodes are common in some formations in the United States (mainly in Indiana, Iowa, Missouri, western Illinois, Kentucky, and Utah). In Oregon they are referred to as thundereggs (which are normally completely filled solid) and are the Oregon State Rock. They also are common in Brazil, Namibia, and Mexico.
Where do the best geodes come from?
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.
Where can I find pretty 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.
What is the rarest type of geode?
The rarest and most valuable geodes contain amethyst crystals and black calcite.
What 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.
How do you pick the best geodes?
Look for geodes with thin outer walls and a small base. Geodes are sold by weight, so the more crystal, compared to the outer layer of sedimentary rock, the better. As mentioned above, the heavier the geode, the more expensive it will be. Additionally, the size of each crystal point will also determine value.
How do you tell if my rock is a geode?
Tell-Tale Signs of a Geode
- 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.
- Geodes are usually lighter than their size would indicate since the interior doesn’t contain any material.
What type of minerals are most commonly found within geodes?
Geodes commonly have a chalcedony (cryptocrystalline quartz) shell lined internally by various minerals, often as crystals, particularly calcite, pyrite, kaolinite, sphalerite, millerite, barite, dolomite, limonite, smithsonite and quartz, which is by far the most common and abundant mineral found in geodes.
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.
Should a geode be heavy or light?
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. Geodes are usually lighter than their size would indicate since the interior doesn’t contain any material.
How expensive is a geode?
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.”
How do people know if a rock is a geode?
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. You may hear small pieces of rock or crystal rattling around inside if it is hollow.
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.
Can you sell geodes?
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.”
How much are whole geodes worth?
Can geodes be worth money?
Geodes are highly valued for their content and appearance. 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.
How can you tell if a geode is real?
Can geodes be fake?
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.