How Are Igneous Rocks Classified?

Answer

Igneous rocks are classified according to the mode of occurrence, texture, minerals it contains, chemical composition and the shape of its body.
Q&A Related to "How Are Igneous Rocks Classified"
Igneous rocks are generally classified first on the basis of their formation (and therefore their texture) as intrusive or extrusive. Intrusive rocks are solidified from magma under
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Igneous rocks are classified based on mineralogy, chemistry & textu...
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1. Confirm that you are looking at an igneous rock. Sedimentary rocks have layers. Metamorphic rocks have well-organized crystals or crystals of equal size. Igneous rocks can have
http://www.ehow.com/how_2081365_identify-igneous-r...
1 Distinguish igneous rock from sedimentary rock by noting that igneous rocks lack fossils, shells and rounded grains. All igneous rocks have interlocking crystals. In some igneous
http://www.wikihow.com/Identify-Igneous-Rocks
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