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Index
Gems in the SMITHSONIAN INSTITUTION
CONTENTS
1 THE NATIONAL GEM COLLECTION
2 THE STUDY OF GEMS
PHYSICAL CHARACTERISTICS OF GEMSTONES
CHEMICAL CHARACTERISTICS OF GEMSTONES
3 THE SHAPING OF GEMSTONES
4 GEM SUBSTITUTES
IMITATION STONES
ASSEMBLED STONES
RECONSTRUCTED AND ALTERED STONES
SYNTHETIC STONES
5 GEM LORE
6 PRINCIPAL GEM SPECIES
DIAMOND
PEARL
CORUNDUM (RUBY AND SAPPHIRE)
BERYL (INCLUDES EMERALD AND AQUAMARINE)
TOPAZ
OPAL
SPINEL
QUARTZ (INCLUDES ROCK CRYSTAL, AMETHYST, AND CITRINE)
CHRYSOBERYL (INCLUDES ALEXANDRITE AND CAT’S-EYE)
TOURMALINE
ZIRCON
PERIDOT
SPODUMENE
GARNET
JADE
CHARACTERISTICS OF SOME COMMON GEMS
GEMSTONES FOR THE COLLECTOR
7 SOME NOTABLE GEMS IN THE COLLECTION
Transcriber’s Notes
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