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

Gemmology

Rocks, Gems, and Minerals

Field Guide to Rocks & Minerals of Southern Africa

Dirt: The Ecstatic Skin of the Earth

Rocks and Minerals

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

Handy Pocket Guide to Asian Gemstones

Uranium: War, Energy, and the Rock That Shaped the World

Volcanism

Rock Mechanics: For underground mining, Edition 3

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

Modern Rockhounding and Prospecting Handbook

Ancient Gems and Finger Rings: Catalogue of the Collection

Geological Structures: An Introductory Field Guide

Applied Hydrodynamics in Petroleum Exploration: Edition 2

Dictionary of Gems and Gemology