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A geode starts out as basically a cavity or pocket in otherwise solid rock. The cavity walls grow inward as mineral crystals grow from solutions that seep into it. In time, the cavity may become completely infilled with mineral crystal. The geodes that are found on the surface are survivors of weathering which eroded the rock in which they were once emplaced. This is because the geodes are composed of minerals such as quartz which are more resistant to erosion than the rocks which originally surrounded them.
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∙ 15y ago
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What are the hollow ball like object's such as quarts witch are found in sedimentary rocks?
I think you are describing a geode. They are generaly hollow and crystalline in structure
What is the difference between a geode and a agate?
Geode has crystals in the cente and sometimes has openings in the center. Agate is solid through and does not have crystals. Ocos is mini Geodes
Age of geodes?
Geodes are sphere-shaped stones which are partially hollow, and often lined with sparkling mineral crystals inside their cavities. It usually takes 240 million years to form a geode.
A hollow rounded rock that is lined with crystals is a .?
They're called geodes. Basically, they're cavities in the molten material (magma) in the form of gas bubbles. The mineral rich solution seeps in and crystallizes and grows until all the solution is exhausted. That's why sometimes you'll end up with a crystal filled cavity and other times the whole void is filled in with interlocking crystals.
What is a geode with flint in it?
A geode with a flint in it is called a "nodule".
What is a hollow rock lined with crystals?
a geode
What is a hollow rock lined with mineral crystalls?
a geode bro
A round hollow rock that is lined with mineral crystal is known as?
A geode.
What is a sentence for geode?
A geode is a hollow stone found on the earth that is lined on the inside with crystals.
What is a hollow space in a rock?
minerals
Is it true that a hollow rock lined with crystals is a geode?
it is true.
Is the earth's shape a geode?
No. A geode is not a shape; it is a kind of rock with a hollow interior filled with crystals. Earth's shape is an oblate spheroid.
What is a hollow rock that is often lined with mineral crystals?
That's a geode.
What is a round hollow rock that is often lined with mineral crystal?
That's a geode.
What is geode?
A hollow rock with crystals in it. See the related link for more information.
What is a rounded hollow rock that is often lined with mineral crystal?
That's a geode.
What is round hollow rock that is often lined with mineral crystals?
That's a geode.
