Frank, D., J. Galloway, and K. Assmus, 2005, The life cycle of a mineral deposit—a teacher’s guide for hands-on mineral education activities, US Geological Survey General Information Product 17, 40 pp.
Hausel, W. D., 2014, A Guide to Finding Gemstones, Gold, Minerals, and Rocks, Gemhunter Publications, Gilbert, AZ, 370 pp.
Skinner, Brian J., 1989, Mineral Resources of North America, In: A. W. Bally and A. R. Palmer eds., The Geology of North America—An Overview, Vol. A, The Geological Society of America, Boulder, CO, pp. 575 - 584.
Websites
Handbook of Mineralogy. (Technical information on 420 minerals available as free individual pdfs.)
Mineral Data, Hudson Institute of Mineralogy. (Claims to be the world's largest public database of mineral information.)
Beckwith, J. A., 1972, Gem Minerals of Idaho, Caxton Printers, Caldwell, ID, 129 pp.
Hausel, W. D., 2009, Gems, Minerals & Rocks of Wyoming: A Guide for Rock Hounds, Prospectors & Collectors, W. Dan Hausel Geological Consulting LLC, Gilbert, AZ, 176 pp.
Hausel, W. D., and E. J. Hausel, 2011, Gold: A Field Guide for Prospectors and Geologists (Wyoming and Nearby Regions), Dan Hausel Geological Consulting, Gilbert, AZ, 366 pp.
Ream, L., 2012, Gem Trails of Idaho & Western Montana, Gem Guide Books, Upland, CA, 256 pp.
Rygle, K. J., 2011, Northwest Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan and Mine Your Own Gems & Minerals, 5th edition, GemStone Press, Woodstock, VT, 200 pp.
Wilson, Anna B., and Ed DeWitt, 1995, Maps showing metallic mineral districts and mines in the Black Hills, South Dakota and Wyoming, US Geological Survey Miscellaneous