618 



INDEX 



Axinite, 412 

 Azure -quartz, 488 



-stone, 438 



Azurite, 527 



Badakshan, ruby, 278 



Bafifa diamonds (quartz), 479 



Bagagem (Brazil), diamond, 159 



Bahia (Brazil), diamond, 171 



Bahias (diamond), 173 



Balas-ruby, 297 



Ball-jasper, 500 



Baltic amber, 541 



Banaganapalli (India), dia- 

 mond, 147 



sandstone, 141 



Barkly "West (S. Africa), dia- 

 mond, 180, 184' 



Baroque pearls, 591, 592 



Barro, 164 



Barrok pearls, 591 



Bastard amber, 537 



forms of cutting, 79 



Bastite, 452 



Batea, 168 



Beads, 79, 547 



Beekite, 497 



Bell-pearls, 591 



Bernstein, 536 



Berquen, Ludwig van, 239 



Beryl, 306 



Bhadrachalam (India), dia- 

 mond, 149 



Bianco coral, 603 



Biaxial crystals, 51, 61 



Birefringence, 46 



Birjpur (India), diamond, 152 



Black amber (jet), 554, 556 



cleavage (diamond), 213 



coral, 613, 615 



lava-glass, 446 



onyx, 558 



stones, 579 



Prince's " ruby," 298 



Bloemhof (Transvaal), dia- 

 mond, 185 

 Blood-jasper, 511 



-stone, 511 



(hematite), 533 



Blue amber, 537, 539 

 coral, 615 



earth, 543 



ground, 190 



John, S30 



-spar, 403 



stones, 568, 577 



stuff, 190 



-white diamonds, 133 



Bo Channa (Siam), ruby, 275 

 Nawang (Siam), ruby, 275 



Bo Pie Rin (Siam), sapphire, 



286 

 Boart = Bort 

 Bobrovka garnet = demantoid, 



361 

 Bockelstein (amber), 550 

 Bodenstein (amber), 549 

 Bohemia, 139, 291, 344, 356, 



357, 406, 449, SOI, 515, 528, 



534. 589 

 Bohemian diamonds (quartz), 



479 



garnet, 356 



ruby, (quartz), 488 



topaz (quartz), 487 



Bolivia, 446, 531 

 Bone (amber), 537 



-turquoise, 402 



Boring stones, 85 

 Borneo, 217, 247, 291, 304 

 Bort, 125, 209, 212, 214, 83 

 Bottle-stone, 449 

 Bouteillenstein = naoldavite,449 

 Brabant rose, 78 

 Brack (amber), 550 

 Braganza, supposed diamond, 



177, 247> 330 

 Brazil, 15s, 252, 299, 303, 317, 

 320, 324, 325, 334, 355, 371, 

 372, 403, 407, 410, 415, 419, 

 426, 431, 455, 464, 478, 483, 

 487,488, 509, 511, 515, 533 

 Brazilian agate, 515 



emerald (tourmaline), 372 



pebble (quartz), 478 



ruby (topaz), 332, 336 



sapphire (topaz), 330 



(tourmaline), 372 



topaz, 331, 334 



type of diamond crystal. 



Brecciated-agate, 512, 513 

 Brianfon diamonds (quartz), 



477 

 Brilliant-cut, 73 

 form of cutting, 240, 242 



244 



once-formed, twice- 

 formed, &c., 255 



path of ray of light in, 45 



-glass, 242 



Brilliants (diamond), 73 



Brillolette, 78 



Brillonette, 75 



Briolette, 78 



Bristol diamonds (quartz), 477, 



479 

 British Guiana, diamond, 228 

 Brittle amber, 553 

 Bronzite, 452 

 Brown stones, 572, 579 



Bruciato coral, 603 

 Bruting the diamond, 82, 243 

 Bull's-eyes (labradorite), 434 

 Bultfontein diamond-mine, 182, 



187, 197, 207, 212 

 Burma, 269, 286, 293, 298, 299, 



304, 317, 323, 354, 370, 407, 

 430, 468, 484, 555, 596 



Burmese amber, 555 



jadeite, 469 



ruby, 269 



Burmite, 555 



Burning stones, 88 



Burnt agate, 524 



amethyst, 88, 482, 486 



carnelian, 509 



coral, 603 



smoky-quartz, 480, 486 



topaz, 88, 332 



Button-pearls, 587, 593 



By- water (diamonds), 213 



Byon, 271 



Cabochon-cut, 72, 79, 82 



Cacholong, 388 



Caire's star-cut, 75 



Cairngorm, 481 



Calaite, 389 



Calamine, 423 



Calcite, 527 



cleavage of, 27 



double refraction of, 47 



Calette = culet, 73 

 Callaina, 396 

 Callainite, 403 

 Callais, 396, 403 

 Calmuck-agate, 388 



opal, 388 



Cameo, 86, 521 



Canada, 388, 422, 431, 446, 464, 



531, 558 

 Canavieiras (Brazil), diamond, 



175 

 Cancrinite, 437 

 Canga, 162 

 Cannel-coal, 557 

 Canteen rush, 184 

 Canutillos, 315 

 Cap-cut, 79 

 Cape chrysolite (prehnite), 421 



ruby (garnet), 193, 360 



white (diamond), 211,213 



Capelan Mountains, ruby, 270 

 Captivos, 161 

 Carat, 103 



different values of, 103 



-goods, 242 



-grain, 104 



-stones, 242 



Carbonado, 83, 125, 173 



