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They are usually about the same density as non-volcanic rocks. The one exception is pumice, which is so full of holes that it is less dense than water.

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What are the big heavy rock on earth surface?

igneous volcanic rocks


Are volcanic rocks igneous rocks?

Yes. Volcanic rocks are extrusive igneous rocks.


Are Volcanic rocks metal?

No. Volcanic rocks are made of the same materials that other rocks are.


Are metamorphic rocks volcanic?

No. Only extrusive igneous rocks are volcanic.


What are volcanic rocks?

Volcanic rocks are classified as extrusive igneous rocks, forming from the solidification of lava.


Are intrusive rocks volcanic?

No. Volcanic rocks are extrusive. Intrusive rocks are sometimes called plutonic.


Are volcanic rocks hot?

Volcanic rocks are hot if they are freshly erupted. Otherwise, no.


Magma that is rejected during a volcanic eruption forms igneous rocks?

Magma that is ejected during a volcanic eruption forms extrusive igneous rocks. They are also referred to as volcanic rocks.


Are volcanic rocks sedimentary?

No. Volcanic rocks are igneous (although not all igneous rocks are volcanic). Sedimentary rocks are made of sediment naturally cemented together. However, volcanic (or extrusive igneous) rocks can be eroded into sediment, which can be cemented, compacted, or otherwise become sedimentary rock such as sandstone or conglomerate. It is then not considered igneous.


What type of volcano has light and heavy rocks?

A composite or stratovolcano typically has light and heavy rocks. These types of volcanoes are characterized by alternating layers of lava flows and volcanic ash, which can contain both lighter materials like pumice and heavier rocks like basalt.


What are igneous rocks that form over the surface?

Rhyolititcen rocks.


What are some rocks that are not volcanic?

Sedimentary rocks: Metamorphic rocks