Blackburn, W. H., and W. H. Dennen. 1993. Principles of mineralogy. 2d ed. Dubuque, Iowa: Wm. C. Brown Publishers.

Chesterman, C. W. 1978. The Audubon Society field guide to North American rocks and minerals. New York: Alfred A. Knopf.

Gaines, R. V., H. C. W. Skinner, E. E. Foord, B. Mason, and A. Rosenzweig. 1997. Dana's new mineralogy, 8th ed. Somerset, New Jersey: John Wiley & Sons.

Klein, C., and C. S. Hurlbut. 1993. Manual of mineralogy (after J. D. Dana). 21st ed. New York: John Wiley & Sons.

Prinz, M., G. Harlow, and J. Peters. 1978. Simon & Schuster's guide to rocks and minerals. New York: Simon & Schuster.

Rocks & Minerals. A bimonthly magazine mainly for professional and amateur mineral and rock collectors. Washington, D.C.: Heldref Publications.

Schumann, W. 1993. Handbook of rocks, minerals and gemstones. New York: Houghton Mifflin Co.

http://www.rockhounds.com/
Bob's Rock Shop. Contains a great amount of information for mineral collectors. Click on crystallography and mineral crystal systems for a more in-depth study of crystallography than presented in this book.

http://www.theimage.com/
Minerals: The Image. Click on Mineral Gallery for photos of minerals.

http://galaxy.einet.net/images/gems/gems-icons.html
Website for the Smithsonian Museum mineral and gem collection.

The study of minerals. TASA Graphic Arts. For preview, visit this website: http://www.swcp.com/~tasa