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Civil Engineering

list igneous rock

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Igneous rocks are formed from the solidification of molten rock material There are two basic types a Intrusive igenous rock b Extrusive igenous rock a Intrusive igenous rock crystallize below earths surfaceand the slow cooling that occurs there allows large crystals to form examples diorite gabbro granite pegmatite and peridotite b Extrusive igenous rock erupt onto the surface where they cool quickly to form small crystals some cool so quickly that they form an amorphous glass examples andesite basalt dacite obsidian pumice rhyolite scoria and tuff Brief descriptions of some common igenous rock types Diorite Diorite is a coarse grained    See Answer
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