Rocks, Gems, and Minerals of the Rocky Mountains 2/e Richard Griscom A unique feature of Dr

A unique feature of Dr

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Rocks, Gems, and Minerals of the Rocky Mountains 2/e Richard Griscom A unique feature of DrRocks, Gems, and Minerals of the Rocky Mountains is a field guide to more than 130 of the most common and sought after rocks, gems, and minerals hidden throughout the Rocky Mountains. Conveniently sized to fit in your pocket and featuring full color, detailed photographs, this informative guide makes it easy to identify rocks in your backyard and beyond. Also included is an introduction that covers fundamental geology information and interesting