Field Guide to Rocks & Minerals of Southern Africa

Rocks, Gems, and Minerals

Understanding Minerals & Crystals

Rocks and Minerals

Dirt: The Ecstatic Skin of the Earth

Pocket Guide to Rocks & Minerals of southern Africa

Handy Pocket Guide to Asian Gemstones

How on Earth?: Answers to the puzzles of our planet

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

Minerals & Gemstones of East Africa

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

Minerals & Gemstones of Southern Africa

Ancient Gems and Finger Rings: Catalogue of the Collection

Sasol First Field Guide to Gemstones of Southern Africa

Modern Rockhounding and Prospecting Handbook

The Story of Earth & Life: A southern African perspective on a 4.6-billion-year journey

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