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Extrusive igneous rocks.

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Magma cools and solidifies to form what rocks?

igneous rocks


What type of igneous rock that solidifies outside the crust?

extrusive igneous rocks, inside the earth is intrusive igneous rocks


What class or rocks are made from lava or magma?

Rocks made from lava or magma are classified as igneous rocks. Igneous rocks form when molten rock cools and solidifies, either on the Earth's surface (extrusive) as lava or below the surface (intrusive) as magma. Examples of igneous rocks include basalt, granite, and obsidian.


When or igneous rocks formed?

When lava cools and solidifies.


Can rocks both have igneous and intrusive?

Rocks can be classified as either igneous or intrusive, but not both. Igneous rocks are formed from the cooling and solidification of magma (molten rock) above or below the Earth's surface. Intrusive rocks specifically form from magma that cools and solidifies underground, beneath the Earth's surface.


What are two types of igneous rocks?

Two types of igneous rocks are intrusive igneous rocks, which form from magma that cools and solidifies beneath the Earth's surface, and extrusive igneous rocks, which form from lava that cools and solidifies on the Earth's surface.


This type of rock forms from molten rock that cools and solidifies?

Igneous rock forms from molten rock that cools and solidifies, either above or below the Earth's surface. This process can result in the formation of rocks such as basalt, granite, and obsidian.


How are igneous rocks classified acording to their..?

Igneous rocks are classified by either being intrusive or extrusive, then mafic or felsic then they are classified by either fine grain or course grained textures.


Rocks that form as a result of cooling magma?

Igneous rocks form as a result of cooling magma. As the magma cools and solidifies, it forms rocks such as granite, basalt, and obsidian. The size of the mineral crystals in the rock is determined by the rate of cooling.


What igneous rocks is produced by lava that solidifies at the earth's surface?

Extrusive (Volcanic) igneous rock.


Which is not a common extrusive igneous rock?

There are so many rocks that can be classified as not a common extrusive igneous rock. The most common extrusive igneous rock is basalt. Extrusive rocks are formed as a result of lava solidifying.


How does metamophic rocks become igneous rocks?

When metamorphic rock melts from pressure and heat, then the product of that melt solidifies, it is considered an igneous rock.