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.
I am sure that any serious Idaho Rock hound would own and have read this book multiple times. Although written in the 1970s much of the information is still viable. the field trips are a great way to get out and see parts of the state that you probably wouldn't otherwise. I would say this book is informative and well written without being to boring and scientific for the average non geological schooled user.