The site, presented by About.com, categorizes and lists a plethora of different rocks. They have divided them by their rock structure: igneous, sedimentary, and metamorphic. Under each category are a list of different...

This hands-on activity covers the basics of rock identification. After a brief discussion of the terms 'rock' and 'mineral', students will study the characteristics and classifications of the three major rock groups...

If you are having difficulty remembering the details of the Earth's geological structure or the nature of major minerals and rock types, you can consult this excellent introductory course offered as part of MIT's...

This is a general structural geology page where some pictures and definitions of fault blocks can be found.

This unit provides younger students with an introduction to rocks and minerals. Topics include the definition of a mineral, the physical properties of minerals and how they are measured, and a discussion of quartz, the...