Error message

Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 20 of /home/raw3y9x1y6am/public_html/includes/



The study of rocks is a bit more challenging than the study of minerals. Why? The term "rock" includes a wide variety of things, including substances that we usually don't think of as rocks.


What is a Rock?

The definition of a rock is not as precise as the definition of a mineral. It includes a much broader range of substances.

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

The Rock Cycle

Rock Resources