Saganite, see cairngorm Saphir d’eau, see dichroite Sappare, see cyanite Sapphire, 16, 17, 20, 21, 37, 38, 39, 41, 42, 43, 51, 52, 93, 98 Sapphire, cat’s-eye, 39, 46 Sapphirine, 48, see false lapis Sard, 121, 122 Sardoine, see sard Sardonyx, 121, 122 Saxony topaz, 85 Siberian aquamarine, 53 " topaz, 85 Siberite, 64 Siderite, see false lapis Silicified coral shells, see beckite " wood, 120 Slave’s diamond, see topaz Smoky-quartz, see cairngorm " topaz, 16, 17 Spanish topaz, see yellow quartz Specific gravity, 21 Sphene, 100 Spinel, 12, 14, 15, 17, 18, 21, 42, 46 Spodumene, 95, 96 Star ruby, 39, 45 Star sapphire, 39, 45 " topaz, 39, 45 Streak, 18 Sunstone, 46, 88, 89, 90 Syrian garnet, 80 Talc, 19 Titanite, see sphene Tiger-eye, see crocidolite Topaz, 8, 9, 16, 17, 20, 31, 32, 38, 42, 49, 50, 58, 84, 107, 111 Tourmaline, 13, 16, 17, 21, 32, 42, 53, 64, 107 Transparency, 30 Tree agate, see Mocha agate Turquois, 9, 10, 17, 18, 30, 60, 107 Uwarowite, 80, 83 Venus hair-stone, see cairngorm Vermeille, 80, 83 Vesuvianite, see idocrase Volcanic glass, see obsidian " lava, " " Water opal, see moonstone " sapphire, see dichroite Weight, 27 White spinel, see spinel Wood agate, 120 " opal, 120 Yellow quartz, 111 " sapphire, see Oriental topaz Zircon, 9, 16, 17, 18, 38, 49, 58 End of the Project Gutenberg EBook of A Hand-book of Precious Stones, by Meyer D. Rothschild