PART II—SECTION B

SEMI-PRECIOUS STONES

XXI. TOPAZ 197

XXII. SPINEL (_Balas-Ruby_, _Rubicelle_) 203

XXIII. GARNET 207

(_a_) HESSONITE (_Grossular_, _Cinnamon-Stone_, _Hyacinth_, _Jacinth_) 211

(_b_) PYROPE (‘_Cape-Ruby_’) 212

(_c_) RHODOLITE 214

(_d_) ALMANDINE (_Carbuncle_) 214

(_e_) SPESSARTITE 216

(_f_) ANDRADITE (_Demantoid_, _Topazolite_, ‘_Olivine_’) 216

(_g_) UVAROVITE 218

XXIV. TOURMALINE (_Rubellite_) 219

XXV. PERIDOT 225

XXVI. ZIRCON (_Jargoon_, _Hyacinth_, _Jacinth_) 228

XXVII. CHRYSOBERYL (_Chrysolite_, _Cat’s-Eye_, _Cymophane_, _Alexandrite_) 233

XXVIII. QUARTZ (_Rock-Crystal_, _Amethyst_, _Citrine_, _Cairngorm_, _Cat’s-Eye_, _Tiger’s-Eye_) 238

XXIX. CHALCEDONY, AGATE, ETC. 246

XXX. OPAL (_White Opal_, _Black Opal_, _Fire-Opal_) 249

XXXI. FELSPAR (_Moonstone_, _Sunstone_, _Labradorite_, _Amazon-Stone_) 254

XXXII. TURQUOISE, ODONTOLITE, VARISCITE 257

XXXIII. JADE (NEPHRITE OR GREENSTONE, _Jadeite_) 260

XXXIV. SPODUMENE (_Kunzite_, _Hiddenite_), IOLITE, BENITOITE 265

XXXV. EUCLASE, PHENAKITE, BERYLLONITE 269

XXXVI. ENSTATITE (‘_Green Garnet_’), DIOPSIDE, KYANITE, ANDALUSITE, IDOCRASE, EPIDOTE, SPHENE, AXINITE, PREHNITE, APATITE, DIOPTASE 271

XXXVII. CASSITERITE, ANATASE, PYRITES, HEMATITE 281

XXXVIII. OBSIDIAN, MOLDAVITE 283