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222
I
Cat's-eye,
29, 134 Cave pearls, 168 Chalcedony, 154 Chiastolite, 168
Chlorastrolite, 168 Chlorospinel, 160 Chrysoberyl, 108, 135
Chrysocolla, 168 Chrysolite, 116, 136 Chrysoprase, 154 Citrine, 156
Cleaving, 66 Cobaltite, 169 Colors of stones, 210 Compact titanic iron,
169 Conch pearl, 151 Coral, 169 Cordierite, 172 Crocidolite, 137
Crystals, 41 Culet, 61
Cumberland, the, 28 Cyanite, 169 Cymophane, 135 Cyprine, 179
Danburite,
169 Darya-i-nur, the, 25 Datolite, 169 De Beers mine, 89 Demantoid, 142
Diamond, 75, 138 Dichroite, 172 Diopside, 139 Dioptase, 170 Dragon
Lord, the, 31 Dresden green diamond, the, Du Toit's Pan mine, 88
Egeran, 179 Egyptian jasper, 154 Elxolite, 170
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D E X
Emerald, 33, 105, 140 Enstatite, 170 Epidote, 170 Essonite, 142 Euclase, 170 Eugenie, the, 27 Excelsior, the, 29
False color, 41 False topaz, 156 Fire opal, 149 Fish-eyes, 62 Florentine, the, 25 Fluorite, 171 Fossil coral, 171
Gadolinite, 171
Garnet, 171
Girasol, 149
Girdle, 61
Gnaga Boh, the, 31
Golden beryl, 140
Grain, 72
Great Diamond Table, the, 24
Great Mogul, the, 20
Grossularite, 142
Gypsum, 181
Halphen Red Diamond, the, 42
Hardness, 181
Hawk's-eye, 137
Heliotrope, 154
Hematite, 171
Herceynite, 160
Hiddenite, 143
Hope diamond, the, 26
Hyacinth, 164
Hyalite, 149
Hydrophane, 149
Hypersthene, 172
Idocrase, 178 Importations, 218
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