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PAGE
False amethyst -
186
chrysolite - - - 132
emerald
....
186
lapis ... 157
ruby ....
186
topaz - - - - 186
Feldspar - - - - 175
Fergusonite ... - 140
Fire opal - - - - 161
Flame opal -
161
Flint - - - - - 158
Florentine diamond - - - 68, 74
Fluorescence - - - 35, 186
Fluorite
186
Fluorspar - - - - 186
Fool's gold
189
Fowlerite - - - - 194
Gadolinite
140
Gagat..... 211
Garnet
127
Gems, apostolic - - - 65
distinguished from precious stones 3
Israelitish ... 65
mining of - - - 8, 12
mounting of
48
nature of - - - - 1
occurrence of
4
Scriptural - - - - 61
valuation of
50
Gem gravels - - - 5, 9
Geyserite .... 160
Gibraltar stone - - - 204
Girasol - - - 161
Golden beryl - - - 98, 103
Golden opal
161
Great Mogul diamond - - - 74
Green star stone - - - 191
Grossularite -
127
Gypsum
204
Hair stone - - - 148
Hardness of gems - - - 17
Harlequin opal -
161
Hawk's-eye -
149
Heavy liquids - - - - 21
Heliotrope - - - 153
Hematite - - 188, 220
Hiddenite
118
Honduras, opals of - - 163
Hope Blue diamond - - 68
Hornstone ....
158
Hungarian opals ... 162
Hyacinth - - 109, 110, 116
Hyalite
160
Hydrophane
....
160
Hypersthene - - - 169
22
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PAGE
Iceland
agate ....
182
Idocrase ... - 135
Imitation coral -
223
gems .... 54
pearls ....
219
Indicolite .... 111
India, bloodstone of - - 153
carnelian of
152
diamonds of
71
garnets of
129
moss agate of
151
Iolite
136
Isotropic media - - - 26
Israelitish gems ... 65
Itacolumite - - - - 80
Jacinth - - 109
Jade - - - - - 165
Jadeite .... 165
Jargon ----- 109
Jargoon .... 109
Jasper ..... 157
Jet..... 210
Job's tears - - - - 133
Jubilee diamond -
83
Kohinoor diamond - - - 72
Kunzite
118
Labradorite -
176
Lake George diamonds - - 142
Lapis lazuli .... 201
Lepidolite
117
Leucosapphire - - - 88, 94
Love's arrow - - - 148
Luster of gems, - - - 16
Lydian stone - - - 158
Lyncurion .... 111
Malachite - - - - 197
Marcasite
190
Marekanite - - - - 181
Matura diamond - - - 109
Menilite - - - - 160
Mesolite
192
Metallic luster - - - - 16
Metamorphic rocks - - - 6
Methylen iodide - - - - 22
Mexican onyx - - - 156
Mining of gems - - - - 8, 12
Mocha stone - - - 151
Moldavite - - - - 183
Moonstone -
178
Moss agate -
151
Mountain mahogany - - 181
Mounting of gems - - - 48 7
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