The Minerals Encyclopedia: 700 Minerals, Gems and Rocks

The Ultimate Guide to Sea Glass: Finding, Collecting, Identifying, and Using the Ocean's Most Beautiful Stones

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

Wild Clay: Creating ceramics and glazes from natural and found resources

Michigan Rocks & Minerals: A Field Guide to the Great Lake State (Rocks & Minerals Identification Guides)

Gem

A Field Guide to Rocks and Minerals (Peterson Field Guides)

Rockhounding Oregon (Rockhounding Series)

Collecting Rocks, Gems and Minerals: Identification, Values and Lapidary Uses

Rockhounding Arizona (Rockhounding Series)