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Unknown, but one theory is appx 240m years. There is much that is still not understood about the mysterious geode.

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13y ago

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Related Questions

How long does it take for a geode to grow?

it can take hundreds of years just to form half


How long does it take for a homemade geod to form?

a homemade geode could prob take about 7 days


What the verb of geode?

The verb form of "geode" is not commonly used, as "geode" primarily functions as a noun referring to a geological rock formation. However, in a more creative or informal context, one might use "geode" as a verb to describe the action of discovering or opening a geode. For example, one could say, "We geoded the rock to reveal its beautiful crystals inside." In standard usage, though, "geode" does not have an established verb form.


What is the widest geode?

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A round hollow rock that is lined with mineral crystal is known as?

A geode. Geodes are spherical to oblong rock formations that contain hollow cavities lined with crystals such as quartz, amethyst, or calcite. They form as gas bubbles in volcanic rock or in sedimentary rock.


What is the origin of the word geode?

The word "geode" comes from the Greek word "geoides," which means "earthlike" or "having the form of the Earth." Geodes are spherical rocks that contain crystals inside.


What is a geode with flint in it?

A geode with flint inside would be a type of geode that contains the mineral flint, a hard, sedimentary cryptocrystalline form of the mineral quartz. Geodes are typically round rock formations that contain hollow cavities lined with crystals or mineral deposits, and finding flint inside one would be an uncommon but interesting occurrence.


What is the geode crystal for February?

The geode crystal for February is Amethyst


What is a sentence with the word geode?

Geode is a rock or stone with crystals.


What is a hollow rock lined with crystals?

a geode


What is a sentence using the word geode?

I'm taking this geode with me.


How could you use geode in a sentence?

The found the geode while travelling through the caves. This is a sentence containing the word geode.