ROCK TYPES

                                          
                                Igneous Rock


Intrusive: A rock that forms under the surface of the earth.

Extrusive: A rock formed on the surface of the Earth.


  

                        
                            Metamorphic Rock

                                


 Foliated:  Rock which are arranged  by layers.

                               


  


                                           
                          

 


Non Foliated:  Rock which are not arranged  by layers.




      
                          Sedimentary Rock

                 Clastic: A rock composed of broken pieces of older rocks.  

                   Crystalline: A crystal or crystalline solid is a solid material.

                            Bioclastic: Rock formed by rest of animal or plants death.