Foreword

Preface

Introduction to Gems

The Formation of Gems

The Classification of Inorganic Gems

Diamond (colorless, colored, black)

Corundum (ruby, sapphire)

Chrysoberyl (alexandrite, cymophane, cat’s-eye)

Spinel (red, blue, other)

Quartz (amethyst, citrine, and other)

Opal (black, white, fire)

Topaz (blue, imperial, other)

Beryl (emerald, bixbite, aquamarine, heliodor, morganite, pale green, and goshenite)

Cordierite

Phenakite

Tourmaline Group

Elbaite Tourmaline (verdelite, rubellite, indicolite, canary, achroite, bicolor, watermelon, cuprian)

Dravite Tourmaline

Schorl Tourmaline

Liddicoatite Tourmaline

Garnet Group

Almandine Garnet

Pyrope Garnet (including rhodolite)

Spessartine Garnet (including mandarin, malaia, umbalite)

Grossular Garnet (hessonite, tsavorite, rosolite, leuco)

Andradite Garnet (demantoid, topazolite, mali, melanite)

Uvarovite Garnet

Zircon (hyacinth, jargon, starlight, matara)

Pyroxene Group

Spodumene (kunzite, hiddenite, triphane)

Jadeite

Actinolite (nephrite and cat’s-eye)

Zoisite (tanzanite, thulite, anyolite)

Forsterite (peridot, chrysolite)

Feldspar Group

Orthoclase Feldspar (moonstone)

Albite Feldspar (moonstone)

Albite-Anorthite Feldspar (labradorite)

Benitoite

Turquoise

Inorganic Gems Not Described Here

Organically Derived Gems

Pearls

Noble Coral

Amber

Ivory

Precious Metals (Gold)

Synthetic Gems, Simulant Gems, and Augmentation

Mining

Ethics

Folklore, Mysticism, and Magic

Birthstones

History of The Field Museum’s Gem Halls

Exhibition Team for the Grainger Hall of Gems

Final Words and Acknowledgments

Glossary

References

Index of Gem, Gemstone, and Other Mineral Names

Subject Index