National Geographic Pocket Guide to Rocks and Minerals of North America (Pocket Guides)
Michigan Rocks & Minerals: A Field Guide to the Great Lake State (Rocks & Minerals Identification Guides)
Rocks & Minerals of Wisconsin, Illinois & Iowa: A Field Guide to the Badger, Prairie & Hawkeye States (Rocks & Minerals Identification Guides)
The Illustrated Guide to Fossils & Fossil Collecting: A Reference Guide to Over 375 Plant and Animal Fossils from Around the Globe and How to Identify Them, with Over 950 Photographs and Artworks
Rocks & Minerals of the Pacific Coast: Your Way to Easily Identify Rocks & Minerals (Adventure Quick Guides)
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