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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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What is a hollow rock lined with crystals?

a geode


What is a hollow rock lined with mineral crystalls?

a geode bro


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 an antonym for geode?

An antonym for "geode" could be "void," as a geode is a rock containing a cavity filled with crystals, while a void suggests an absence of material or substance. Another possible antonym could be "solid," emphasizing the difference between a hollow structure and a fully filled one.


What is the scientific name for geode?

Geode is the scientific name. It is derived from Greek and means "earthlike."


Is it true that a hollow rock lined with crystals is a geode?

it is true.


Is a geode considered a crystal?

Yes, a geode is considered a crystal because it is a hollow rock formation that contains crystals inside.


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.


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 a rounded hollow rock that is often lined with mineral crystal?

That's a geode.