What Is the Difference between Intrusive and Extrusive Igneous Rock?

Answer

Extrusive igneous rock is an igneous rock that is formed on the Earth's surface by volcanic activity. This is opposed to plutonic or intrusive rocks, which solidify below the surface of the Earth. Geographically, magma or molten rocks that erupt from volcanoes cools down and solidifies rapidly on the surface.
Q&A Related to "What Is the Difference between Intrusive and..."
Extrusive igneous rock is formed from the solidification of lava on or above the surface. Rapid cooling from exposure to air or water results in rapid crystallization of their component
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Extrusive Igneous Rock forms by the freezing of lava above ground,
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Igneous rocks are crystals. They come in many colors. The colors are from pink to black. These rocks are formed, during crystallization. You can find more information here:
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The most common intusive igneous rock is granite. Other common intrusive rocks are gabbro, diorite, pegmatite, syenite and albite. The most common extrusive rocks are basalt and andesite
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Obsidian is considered to be a black extrusive, igneous rock. It is characterised by a shiny surface and it is created by volcanic gas. Obsidian comprises of high ...
The rock that has a name that means fire is extrusive igneous rocks. Extrusive igneous rocks cool and solidify faster than intrusive igneous rocks. They are formed ...
The extrusive igneous rocks are formed from the hardened lava that flowed from volcanoes. Examples of extrusive igneous rocks are obsidian, basalt, pumice, and ...
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