This is a dark-colored igneous rock with visible chunks. What is its origin? • Intrusive • Extrusive ● Both intrusive and extrusive It does not have an "origin" What is the composition of this specimen? . Felsic Intermediate . Mafic • Ultramafic where you can you find large amounts of this specimen? • Grocery store Mountain ranges • The ocean floor • The deepest canyons

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