Distributed by the University of Nebraska Press for Caxton Press Gem Minerals of Idaho, designed for beginners and for those collectors visiting Idaho for the first time, it is a guide to some of the countless collecting areas of the state. It is not a textbook of mineralogy and, so far as possible, avoids technical terminology. However, it does contain information of general value on the physical and optical characteristics of minerals, as well as facts concerning history, lore, and fashioning of many of the gems.

Originally published: London: Natural History Museum, 2022, as: The Natural History Museum book of gemstones: a concise reference guide.

The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.