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YouTubeProfessor Dave Explains
Origin of Igneous Rocks
With minerals better understood, it's time to discuss rocks. The first type of rock we will discuss is igneous rock. These rocks are formed when magma/lava crystallizes. But how does the mantle rock melt to form magma in the first place? What is the composition of igneous rock? There's a lot more to it than you might think, so let's check it ...
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