RHNC+5.2

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 * 5.2 igneous rocks**

Vocabulary

 * extrusive rock-**is igneous rock formed by lava that erupted from the earths surface.
 * intrusive rock-**igneous rock that formed when magma hardened beneath the earths surface.
 * porphpyritic texture-**a rock with large crystals scattered on a background of much smaller crystals.
 * sediment-**small solid pieces of material that come from rocks or other living things.