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

Colorado Rocks & Minerals: A Field Guide to the Centennial State (Rocks & Minerals Identification Guides)

Rockhounding In North Carolina (FULL-COLOR): An Essential Guide to Collecting Minerals, Crystals, Gemstones, and Fossils, with GPS Coordinates for Creek Trails and Public Land Exploration (WITH MAPS)

The Smithsonian National Gem Collection―Unearthed: Surprising Stories Behind the Jewels

Handbooks: Fossils: The Clearest Recognition Guide Available (DK Smithsonian Handbook)

Rocks & Minerals (DK Handbooks)

Smithsonian Handbooks: Rocks & Minerals (Smithsonian Handbooks)

Rockhounding Texas (Rockhounding Series)

Malachite Green One Line a Day: A Five-Year Memory Book

Rocks, Gems and Minerals: A Fully Illustrated, Authoritative and Easy-to-Use Guide (A Golden Guide from St. Martin's Press)