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Igneous rocks are formed when rocks reach the melting point becoming magma, then the magma starts to cool and crystallizes to form igneous rocks. Metamorphic rocks are made when they come in contact with a mass of magma but does not melt providing the energy to drive chemical reactions that recrystallize minerals.

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Lupe Hahn

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1y ago
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14y ago

Where Igneous rocks are formed by magma that has been cooled and become solid, Metamorphic [Change in form] rocks are a result of the transformation of a rock type that already exists. That rock type could be a sedimentary rock, an igneous rock or even an older metamorphic rock.

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12y ago

Igneous rocks are called fire rocks and are formed either underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped in pockets. As these pockets of magma cool slowly underground, the magma becomes igneous rock . Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground.

Metamorphic rocks are rocks that have "morphed" into another kind of rock. These rocks were once igneous or sedimentary rocks. How do sedimentary and igneous rocks change? The rocks are exposed to great heat and pressure from depth of burial or exposure to tectonic forces, and this causes them to change. The change is reflected in the recrystallization of certain mineral crystals, or even the disappearance of some minerals and the appearance of new minerals. Metamorphic rock often displays foliation, in which the minerals are aligned in bands or thin layers perpendicular to the force that was applied in their metamorphosis. Igneous rocks do not display layering.

Read more: How_can_you_tell_the_difference_between_an_igneous_rock_and_a_metamorphic_rock

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12y ago

Some metamorphic rock has foliation, the banding in the rock

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12y ago

igneous rock is magma below the earth that is cooled and metamorphic rock is made of made by heat and pressure.

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Q: What is the difference between the igneous and metamorphic rocks?
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Related questions

How would you know the difference between igneous and sedimentary and metamorphic rock?

Sedimentary rocks tend to have layers. Igneous rocks tend to have crystals. If you don't see layers or crystals, the rock might be metamorphic.


What does cycle?

cycle means it cycles between sedimentary,metamorphic and igneous rocks. cycle means it cycles between sedimentary,metamorphic and igneous rocks. -Mrs.Zalenski


What is the major difference between igneous and metamorphic rocks?

igneous rocks started as melted lava and cooled to be rocks. Metamorphic rock started as a sedimentary rock, and was heated up and put under pressure to create the metamorphic rock. Classic example - igneous = obsidian. Metamorphic = marble (marble is limestone that's been heated and squeezed a lot).


What are three types of rocks?

igneous, sedimentary, metamorphic


What and the difference between igneous and metamorphic rocks?

Igneous rocks are formed when rocks reach the melting point becoming magma, then the magma starts to cool and crystallizes to form igneous rocks. Metamorphic rocks are made when they come in contact with a mass of magma but does not melt providing the energy to drive chemical reactions that recrystallize minerals.


Can Metamorphic rocks can form from igneous but not from sedimentary rocks.?

Metamorphic rocks can form from both igneous and sedimentary rocks


Can metamorphic rocks can form from igneous but not from sedimentary rocks?

Metamorphic rocks can form from both igneous and sedimentary rocks


What has the author Charles Milton written?

Charles Milton has written: 'Igneous and metamorphic basement rocks of Florida' -- subject(s): Igneous Rocks, Metamorphic Rocks, Petrology, Rocks, Igneous, Rocks, Metamorphic


Can metamorphic rocks form form igneous but not from sedimentary rocks?

Metamorphic rocks can form from both igneous and sedimentary rocks


Are unakite rocks Sedimentary rocks Metamorphic rocks or Igneous rocks?

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What are 3 major rock types?

Igneous Rocks,Sedimentary Rocks,Metamorphic Rocks.


How do igneous rocks form into metamorphic and sedimentary rocks?

Igneous-sedimentary weathering/erosion Igneous-Metamorphic high pressure and heat