How do u tell the difference between types of igneous rocks?
Igneous rocks are classified according to mode of occurrence, texture, mineralogy, chemical composition, and the geometry of the igneous body. This results in various types of distinctions, such as: whether it is intrusive or extrusive; whether it is felsic, intermediate, mafic or ultramafic; and who finely it is grained. Hope this helps. ChaCha!
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