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How do rocks from lava form?

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Anonymous

∙ 11y ago
Updated: 8/21/2019

When a volcano erupts the lava usually reaches water and when they collide it turns into obsidian (I know because of minecraft).

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Wiki User

∙ 11y ago
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Related Questions

How extrusive rocks form?

extrusive rocks can form from Basaltic Lava and Andesitic Lava. :)


Where are rocks came from?

when lava emerges on out of mountain then the molten lava cool to form rocks.


What are rocks that form from the cool lava?

Igneous rocks.


What materials do rocks form from?

Magma or Lava


What is a large group of rocks which form magma or lava?

Igneous rocks.


How do igenous rocks form?

They form when magma or lava cools and solidifies.


What are rocks that form when lava hardens?

Igneous, examples include Granite and Basalt


How are rocks that form from magma and lava different?

They are different because lava is when it hits earth's atmosphere; magma turns to lava. Magma is when its inside the volcano. They are different because of the color: darker/blacker and magma rocks are way hotter. Lava rocks are colder and fragile.


How does volcanoes form new rocks?

when the lava runs out of the volcano it forms new rocks


Igneous rocks that form when lava cools under the crust?

Intrusive igneous rocks do this.


How are volcanoes important in the formation of rocks?

Because the lava from volcanoes form igneous rocks


What extrusive thing does igneous rocks form?

Magma or Lava

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