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The definitive publication on the fascinating and beautiful Fairburn Agates of South Dakota.
Visit dramatic vistas of erosion that reveal fossil discoveries.
An exciting journey through the history of life and the part our continent has played in it all.
This concise monograph provides a thorough, collector-oriented, review of the mica group, including recently described species.
This concise monograph provides a timely review of the minerals of the epidote group, including recent changes in the nomenclature and in-depth information on all presently known species.
The ultimate illustrated guide for non-scientists.
This book interprets the geology of Wisconsin, visible from its highways and parks.
Describes the geologic features visible from the state's highways and leads you to outcrops tucked away in wooded river valleys.
Steers you over glacial moraines and till plains to some of the state's unparalleled geologic features.
South Dakota fills the landscape with geologic diversity. Written for the layperson and amply illustrated with photographs, maps, and diagrams.
This book interprets the geology of Arizona, visible from its highways and parks.
This popular nontechnical introduction to meteorites, asteroids, comets, and impact craters is now even better!
An inside look at Montana's beautiful Dryhead agates.
The Connoisseur's Guide to Precious Gemstones.
Follow the movement of minerals as they travel from Mexican mines to markets, museums, and private collections.