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What are the three types of Igneous Rocks? Tell me about each one
Basaltic, Granitic, and Andesitic
Basaltic contains iron and magnesium but very little silica and its lava flows freely from a volcano.
Granitic contain more silica and less iron and magnesium and its magma is thick and stiff.
Andesitic have a more balanced composition of minerals and density than basaltic or granitic rocks. Its crystal size, large or small, can help identify an igneous rock and intrusive or extrusive.