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Lygdinus, 286 Lyncurium, 259
(Amber), 288 Lynx-sapphire. 184, 240
M.
Magical properties, 5 Magnetic phenomena, 35 Malachite, 208 Malacolite, 219 Masculine Lazurite, 241
Ruby,
184 Matura Diamond, 261 Menilite, 181 Microcline, 213 Milk Opal, 181
Milky Quart/, 157 Mocha, 167, 169 Mohs' scale of hardness, 42 Moissan's
artificial Diamonds, 82 Montana Sapphires, 193 Moonstone, Albite, 214
,, Orthoclase, 211
Morion,
156 Mormorion, 156 Moss Agate, 169 Mother of Opal, 179 Muller's Glass,
182 Murrhine vases, 146 Mushrooms, supposed germination of, 4 Mussite,
219
N.
Needle Stone, 157 Nephrite, 224 Nero's eye glass, 219 Nicol's prism, 29 Noble Chrysolite, 254 Serpentine, 281 P.S.
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O.
Occidental Amethyst, 153 Cat's Eye, 158 Topaz, 155 Oligoclase, 214 Olivine, 253 Onyx, 168, 172
Agate, 168 Mexican, 207 of Pliny, 207 origin of, 13 Opal, 176
Agate, 181 Cachalong, 181 Ceylonese (Adularia), 211
Common,
181 Fire, 180 Flame, 178 Girasol, 180 Gold, 178 Harlequin, 178
Lechosos, 180 Milk, 181 origin of, 11 Pin Point, 17S Precious, 178
Resin, 181 Sun, 180
Water
(Adularia), 211 Wood, 182 Opalescence, 31, 177 Ophthalmius, 176 Optic
axes, 27 Oriental Amethyst, 183, 196 Chrysolite, 184, 196 Emerald, 184,
196 Garnet, 248 Hyacinth, 184, 196 Topaz, 183, 196 Turquois, 286
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