454 



INDES. 



Somervillite, 181. 



Spadaite, 149. 



Spar, Calcareous, 115. 



Derbyshire, 122. 



Heavy, 108. 



Tabular„141. 

 Sparry or spathic iron, 24*7. 

 Spear pyrites, 233. 

 Specular iron, 237. 

 Speculum metal, 30*7. 

 Speiss, 245. 

 Sphene, 210. 

 Spherosiderite, 24*7. 

 Spherulite, 357. 

 Spinel, 160. 

 Spinel ruby, 160. 

 Spinel, zinciferous, 161. 

 Spinellane, 196. 

 Spodumene, 156. 

 Stalactite, 116. 

 Stalagmite, 116. 

 Staurotide, 174. 

 Steatite, 143, 354. 

 Steatitic pseudomorphs, 149. 

 Steinmannite, 223. 

 Stellite, 142. 

 Sternbergite, 326. 

 Stiblite, 224. 

 Stilbite, 165. 

 Stilpnomelane, 245. 

 Stilpnosiderite, 240, (GOthite.) 

 Stinkstone, 117. 

 Stromeyerite, 326. 

 STRONTIA, 110. 

 Strontia, Carbonate of, 111. 



Sulphate of, 110. 

 Strontianite, 111. 

 Struvite, 101. 

 Sulphur, 97, 98. 

 Sulphuric acid, 99. 

 Sulphurous acid, 99. 

 Sulphuretted hydrogen, 77. 

 Sunstone, 176. 

 Syepoorite, 267. 

 Syenite, 351. 

 Symplesite, 249. 



T. 



Tabasheer, 140. 

 Tabular spar, 141. 



quartz, 137. 

 Talc, 143. 



Talcose slate, 354. 



rock, 354. 

 Tallow, Mineral, 97. 

 Tantalite, 244. 

 Telluric Silver, 327. 



Bismuth, 221. 



Lead, 280. 

 TELLURIUM, 219. 

 Tellurium ores, 219, 280. 

 Tennantite, 296. 

 Tenorite, 296. 

 Tephroite, 259. 

 Tesselite, 165, (Apophyllite.) 

 Tetradymite, 221. 

 Tetrahedrite, 295. 

 Thenardite, 108. 

 Thomaite, 248. 

 Thomsonite, 167. 

 Thorite, 202. 

 Thrombolite, 302. 

 Thulite, 183. 

 Thumite, 190. 

 Thuringite, 245. 

 Tile ore, 296. 

 TIN, 213. 

 Tin, Alloys of, 215. 



Native, 213. 



Oxyd of, 214. 



Stream, 214. 



Sulphuret of, 213. 



Wood, 214. 

 Tin ore, 214. 



Tin ores, general remarks on 215, 

 Tin pyrites, 213. 

 Tincal, 107. 

 Titanic acid, 210. 



iron, 241. 

 Titanite, 211. 

 TITANIUM, 209. 

 Titanium ores, 210. 

 Toadstone, 355. 

 Topaz, 194. 



False, 134. 



Oriental, 158. 

 Topazolite, 185. 

 Touchstone, 137. 

 Tourmaline, 187. 

 Trachyte, 356. 

 Trap, 355. 

 Tremolite, 153. 

 Triphane, 156. 

 Triphyline, 249. 



