This lesson will present how to identify and classify crystals. It is 3 of 3 in the series titled "Geology: Crystals."

This site provides a broad overview of the three different types of rocks. Gives a description about are how they are formed and classified.

Slope failure is the downslope movement of rock debris and soil in response to gravitational stresses. Three major types of mass wasting are classified by the type of downslope movement. The types of movement, falls, slides, and flows...