Material World: The Six Raw Materials That Shape Modern Civilization

Fists Full of Gold: A Complete Guide to the Art of Prospecting: How You Can Find Gold in the Mountains and Deserts

The Rockhounding Encyclopedia: The Gem Hunter’s Guide to Identifying and Collecting Over 100 Unique Gemstones, Minerals, Fossils & Geodes | Featuring America’s Top 500 Rockhounding Sites

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The Minerals Encyclopedia: 700 Minerals, Gems and Rocks

The Rockhounding Bible [7 in 1]: The Only Complete Guide with 600 Verified U.S. Sites | Over 100+ Gems, Minerals, Geodes, and Fossils with Expert Identification Tips for Your First Finds

Rocks & Minerals of Washington and Oregon: A Field Guide to the Evergreen and Beaver States (Rocks & Minerals Identification Guides)

Finding Gold in Colorado: Prospector’s Edition: A guide to Colorado's casual gold prospecting, mining history and sightseeing

Read My Pins: Stories from a Diplomat's Jewel Box

The Firefly Guide to Minerals, Rocks and Gems