The program produces documentation and information about our natural minerals and their production and consumption, including environmental consequences. Visit their website.
U.S. Geological Survey Rocks and Minerals
Part of the Geology of the National Parks, this site has descriptions and excellent photos of the main rock-forming minerals and the different types of rocks, explanations of geologic phenomena and pages on the geology of every park and national monument. Visit their website.
If you believe you have a meteorite, the Cascade Meteorite Lab at Portland State University has an excellent step-by-step guide to help with identification: the Interactive Meteorite ID Exercise. Review this information thoroughly if you think that you have a meteorite before you do anything else. Visit their website.