Field Guide to Rocks & Minerals of Southern Africa

Rocks, Gems, and Minerals

Dirt: The Ecstatic Skin of the Earth

Sasol First Field Guide to Gemstones of Southern Africa

Rocks and Minerals

Minerals & Gemstones of Southern Africa

Handy Pocket Guide to Asian Gemstones

Minerals & Gemstones of East Africa

Blue: The Science and Secrets of Nature's Rarest Color

Pocket Guide to Rocks & Minerals of southern Africa

Rockhounding Idaho: A Guide to 99 of the State’s Best Rockhounding Sites

Minerals & Crystals: Morphology – Properties – Identification

Ancient Gems and Finger Rings: Catalogue of the Collection

Modern Rockhounding and Prospecting Handbook

Boom, Bust, Boom: A Story About Copper, the Metal that Runs the World

The Art of Gem Cutting - Including Cabochons, Faceting, Spheres, Tumbling and Special Techniques

Geological Structures: An Introductory Field Guide

Igneous Petrology

Rockhounding Arizona: A Guide To 75 Of The State's Best Rockhounding Sites, Edition 2

Rockhounding Utah: A Guide to the State's Best Rockhounding Sites, Edition 2