Igneous+Rocks

=media type="custom" key="7479617"= =Igneous Rocks are the 1st rock family.= =They are formed from molten rock that cools and crystallizes into solid rock.= =Molten rock found underground is termed __Magma__ wheras molten rock that reaches the surface of the Earth is termed __Lava__.= =Igneous Rocks and minerals form through the same process. A mineral has a specific chemical makeup and crystaline shape. Igneous rocks contain two or more kinds of minerals in its makeup.=

=Contains minerals : Pyroxine and Olivine.= || =Magma cools slowly to produce large mineral crystals in the rock.= || =Contains minerals : Feldspar, Mica= =and Quartz.= || =Magma cools slowly to produce large mineral crystals in the rock.= || =Contains minerals: Feldspar, Pyroxene, Olivine, and Magnetite.= || =Lava cools fast so minerals develop small crystals in the rock.= || =Cools too quickly to form crystals (Not a true rock).= || =Lava cools and hardens very fast to produce no mineral crystals.= ||
 * = ==Rocks== ||= ==Name and Mineral Makeup== ||= ==Forms from== ||
 * = ==[[image:gabbro.jpg width="160" height="120"]]== || =Gabbro=
 * =[[image:http://www.beg.utexas.edu/mainweb/publications/graphics/granite-400.jpg width="217" height="156"]]= || =Granite=
 * [[image:aniakchak/basalt.jpg width="209" height="155"]] || =Basalt=
 * =[[image:http://www.answersincreation.org/curriculum/geology/images/Obsidian.jpg width="199" height="186"]]= || =Obsidian=