Mineral Basics     Minerals Advanced     Rock Basics     Igneous     Sedimentary     Metamorphic

 


 

-Stage 1.3-

 

Rock Basics

 

      Now that minerals are a little clearer (hopefully) we can move on to rocks. Now rocks have a lot more basic purposes than minerals including cement, building materials, decorative materials and of course, paperweights. The way you identify minerals is by certain characteristics like cleavage and hardness. Identifying a rock is a lot different than that. It is not really harder or easier, just different. Lets start of this page with the basic definition of a rock, then go into some rock basics. Then from here we will move on to the three main types of rocks; igneous, sedimentary, and metamorphic.

 

Definition of a Rock - A relatively hard, naturally occurring mineral material. Rock can consist of a single mineral or of several minerals that are either tightly compacted or held together by a cementlike mineral matrix. (dictionary.com). Essentially a rock is a mineral or a bunch of minerals mashed into one lump and distorted from a pure mineral state.

 


Rock Websites

Earth Science Explorer                          Yahoo Science

The Earth Science Explorer                                                                                                         

 


Rock Breakdown

There are 3 main types of rocks. Click on the link to go to their respective websites.

 

 

Igneous Rocks

 

Rocks formed from the solidification of liquid rock, also known as magma or lava.

 

 

Sedimentary Rocks

 

Rocks formed from the breakdown of others rocks and the cementation of those particles from other rocks and animals.

 

 

Metamorphic Rocks

 

Rocks formed from the alteration of any other rock (including other metamorphic rocks) due to increased heat and pressure.

  


 The Rock Cycle

 

Rock Cycle