what is the other name of igneous rock and how they are categorized depending on their Nature origin
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As we just learned, there are two main types of igneous rocks: intrusive rocks (also known as plutonic rocks) and extrusive rocks (also known as volcanic rocks). Volcanic rocks break down into two more categories: (a) lava flows and (b) tephra (pyroclastic material).
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The other name of igneous rock is magmatic rock. They are categorised in two main categories extrusive and intrusive. Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet.
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