Understanding Minerals & Crystals

Rocks, Gems, and Minerals

Rocks and Minerals

Sasol First Field Guide to Gemstones of Southern Africa

Dirt: The Ecstatic Skin of the Earth

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

Ancient Gems and Finger Rings: Catalogue of the Collection

Minerals & Crystals: Morphology – Properties – Identification

Gemmology

Crystals, Rocks, and Gemstones: Exploring Earth's Treasures

The Science of the Earth: The Secrets of Our Planet Revealed

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

Geological Structures: An Introductory Field Guide

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