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13y ago
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9y ago

Volcanic rocks are made primarily out of silicate minerals. Which minerals are present depends on the rock. Some volcanic rocks are made partly or entirely out of glass.

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13y ago

Igneous rock.

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Q: What rocks are volcanoes made up of?
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Related questions

What is a good universal statement about volcanoes?

all volcanoes are made of rocks


Do shield volcanoes have a steep sloping cone made up of rocks and lava?

No. Shield volcanoes have gentle slopes composed almost entirely of cooled lava flows.


Where is the that has outgassed from Earth's volcanoes?

locked up in rocks


Can rocks be made from the inside of volcanoes?

yes. They are made form harden lava


What are types of rocks formed by volcanoes?

Three different types of volcanoes are 1) Shield volcanoes; they are large mountains with gentle slopes. 2) Cinder cones volcanoes; they are small volcanoes made of hardened lava chunks called cinders. And the last one is 3) composite volcanoes; they are medium sized mountains made up of layers of lava that alternates with cinders. That is it.


Is your earth made out of a volcano?

No. Most rocks and earth are not directly from volcanoes.


What rock is made in earthquakes and volcanoes?

igneous rock. It is made from hardened magma. That's from volcanoes. I don't think earthquakes make rocks.


Are plutonic rocks igneous rocks that hardened on top of volcanoes?

No. Plutonic rocks are igneous rocks that hardened underground. Rocks that form on volcanoes are volcanic rocks.


How are volcanoes important in the formation of rocks?

Because the lava from volcanoes form igneous rocks


Can rocks by made from the inside of volcanoes?

Yes they can. When magma dries it turns into igneous rock.


What kind of rocks are in volcanoes?

Igneous Rocks.


Volcanoes are composed of what rocks?

http://en.wikipedia.org/wiki/Volcano volcanoes can be composed of a variety of igneous rocks.