GENERAL INDEX. 



469 



Platiniridium, 127. 

 Pleonaste, v. Spinel. 

 Plumbago, 107. 

 Plumbic ochre, 149. 

 Plumbogummite, 149. 

 Plumose mica, 267. 

 Polianite, v. Pyrolusite. 

 Polishing powder, 430. 

 Pollucite, Pollux, 254. 

 Polyargite, 312. 

 Polvargvrite, 120. 

 PolVbasite, 120, 136. 

 Polvcrase, 202. 

 PolVhalite, 205, 227. 

 Polvlite, 246. 

 Polymignite, 202, 260. 

 Porcelain jasper, 442. 

 Porcelanvte, 442. 

 Porcellophite, 308. 

 Porfido verde antico, 452. 

 Porpezite, 127. 

 Porphyrite, 447. 

 Porphvritic structure, 415. 

 Porphyry, 417, 442, 448. 



Antique green, 452. 



Antique red, 415, 447. 

 Porphyryte, 447. 

 Portor, 431* 



Potassium, Compounds of, 223. 

 Potstone, 304. 

 Potter's clay, 429. 

 Pozzuolana, 428. 

 Prase, 235. 

 Pregattite, 314. 

 Prehnite, 295. 

 Priceite, 212. 

 Prochlorite, 54, 319. 

 Propylyte, 447. 

 Protogine, 440. 

 Protovermiculite, 318. 

 Proustite, 119, 121. 

 Przibramite, 159. 

 Psammite, v. Sandstone. 

 Pseudomalachite, 139. 

 Pseudophite, 318. 

 Pseudotriplite, 191. 

 Psilomelane, 189. 

 Psittacinite, 139. 

 Pudding-stone, 426. 

 Purple copper, v. Bornite. 

 Pycnite, 287. 

 Pyrallolite, 295. 

 Pyrargillite, 315. 



Pyrargyrite, 119, 121. 

 Pvreneite. 258. 

 Pyrite, 5, 6, 172. 

 Pyrites, Arsenical, 175. 



Auriferous, 173. 



Capillary, 164. 



Cobalt, 164. 



Cockscomb, 174. 



Copper, 133. 



Hepatic, 174. 



Iron, 172. 



Magnetic, 174. 



Radiated, 174. 



Spear, 174. 



Variegated, 134. 



White iron, 174. 

 Pyrochlore, 202, 214. 

 Pyrochroite, 189. 

 Pyrolusite, 188. 

 Pyromorphite, 151. 

 Pyrope, 258. 

 Pyrophosphorite, 214. 

 Pyrophyllite, 306. 



slate, 455. 

 Pyrophvllyte, 455. 

 Pyrophysalite, 287. 

 Pyrosclerite, 317. 

 Pyrosmalite, 296. 

 Pyrostilpnite, 120. 

 Pyroxene, 245. 

 Pyroxenyte, 452. 

 Pyrrhopcecilon, 445. 

 Pyrrhosiderite, 182. 

 Pyrrhotite, 174. 



Quartz, 53, 54, 58, 233, 238, 435. 



andesyte, 447. 



dioryte, 446. 



felsyte, 442. 



propylyte, 447. 



syenyte, 445. 



trachyte, 442. 

 Quartzyte, 435. 

 Quick lime, 217. 

 Quicksilver. See Mercury. 



Raimondite, 182. 



Realgar, 99. 



Red antimony, 101. 



chalk, 177. 



copper ore, 136. 



hematite, 176. 



lead, 149. 



