Geology-Rocks

Igneous Rock:  Is a rock formed from crystaslline minerals solidified from molten magma from deep in the earths interior.  Examples are: basalt, rhyolite, andesite, lava, and granite.


Above is an example of Granite.



Above is a picture of Basalt

Metamorphic Rocks: are combinations of igneous and sedimentary rocks modified by heat, pressure and chemical reactions.  Examples are Schist, and quartzite.



Schist



Quartzite

Sedimentary Rocks are: Deposited material that remains in place long enough or is covered with enough material to compact into stone.  Examples are shale, sandstone breccia and conglomerates.



Shale



Sandstone