ANALYTICAL KEY. 



XV 



MORDENITK, analysis, 634A. 



MUSCOVITE, from biotite, 2045. 



from feldspar, 820. 



in arkose, 389. 



" granite, 923, 2045. 



" graywacke, 868, 383O. 



" mica schist, 431. 



" oligoclase, 311. 



" quartz-porphyry, 2237, 2275, 24W. 



" quartzyte, 612. 



interleaved with chlorite, 2265, 2277. 

 poikilitic, 2061. 



NATROLITE, 625A. 

 NICKEL, analysis, 695. 

 OKENITE, 535B. 



OLIGOCLASE, in granite, IB. 



in granite porphyry, 2189. 

 " quartz-porphyry, 311, 1279. 

 " quartzyte, 21M. 

 " syenyte, 853. 



intergrown with orthoclase, 145. 

 old in granite, 1986, 2189. 

 OLIGOCLASE-ALIUTE, 1986, 604G. 



OLIVINE, altered, 15, 18, 26, 162, 571, 697, 1137. 



altered to bowlingite, 133, 162, 141, 188 193 



560, 70.3. 



altered to chlorite, 568. 

 in diabase, 15, 18, 31, 41. 

 " gabbro, 258, 291, 512. 

 " muscovadyte, 976. 

 " noryte, 505H. 



ophitic [poikilitic], 122, 137, 258, 429E, 512, 560, 

 603, 703, 757, 787, 819, 976, 1275, 1343, 1367' 

 1828, 1829, 505H. 

 ORTHOCLASE, deformed, 1051. 

 in aporphyolyte, 226. 

 " gabbro, 1, 5, 225. 

 " a geode, 11A. 

 " granite, IB, 835. 

 intergrowths of, 145, 1051. 

 poikilitic, 1842. 

 secondary growths, 1980. 



PAROASITE, 1043, 1049. 



PENNINE, 1, 8B, 70, 349. 



from biotite, 699, 2060. 

 " feldspar, 820. 



PRKHNITE, 81. 



in diabase, 83. 

 " gabbro, 1814. 

 " scoria, 91C. 

 with copper, 80. 

 " epidote, 1814. 

 " thomsonite, 573. 



PUKLERITK, 634A. 



PYRITE, in arkose, 322. 



in basalt, 52, 63, 255. 

 " conglomerate, 449, 750. 

 " gabbro, 1C, 263. 

 " granite, 292, 2248, 2250, 2264, 2266. 

 " greenstone schist, 2145. 



in jasper, 2280. 

 " quartz-porphyry, 2238. 

 " quartzyte, 270. 

 " slate, 326. 

 " taconyte, 879G. 

 nodules in schist, 1508. 



PYROXENE, globulaire, 1022. 



see under augite, diallage, etc. 



QUARTZ, bipyramidal, 264, 2237, 2266, 2275. 



chalcedonic, 173, 200A, 862, 1013, 2048. 



enlargements, 613, 1838, 2140, 256H, 438, 205S. 



graphic, 265. 



vermicular, 1853. 



in amygdulos, 13B. 

 " apobsidian, 68, 127. 

 " aporhyolyte, 42, 110, 129. 



" basalt, 52, 136. 



" diabase, 41, 51, 798G. 



" dioryte, 380. 



" gabbro, 5, 854G, 845(a)G. 



" granite, IB, 1853, 6H. 



" jasper, 2279. 



" jaspilyte, 866, 867, 2279. 



" tuff, 8B, 61. 

 micropegmatyte, IB. 

 micropoikilitic, 42, 68, 127, 2279. 

 patchy, 68, 653, 2279, 

 poikilitic, 1039, 1339, 1340, 8M, 854G. 

 quartzine, 161B.302. 

 with embayments, 140(1), 384. 



" gold, 2127. 



QUARTZINE, 161B, 302, 1905. 

 RIPIDOLITE, 2277. 



ROTILE, changing to leucoxene, 567. 

 in diabase, 265, 503. 

 " gneiss, 2225. 

 " granite, 132A. 

 " greenstone, 2226. 

 " quartzyte, 270. 

 " slate, 748. 



sagenite net, 422, 567, 896, 1750, 1814, 1874. 

 SAOENITE, see rutile. 



SAPONITE, in diabase, 158, 161, 518. 

 see thalite. 



SAUSSURITE, 563, 1686. 

 SCOLESCITE, 535, 625B. 



SERICITE, in graywacke, 2H, 8H. 



in schist, 351, 375,883,890, 1957, 89W, 2(a)H, 4H. 

 SERPENTINE, 349, 579, 1545. 



from olivine, 7B, 770W. 



in gabbro, 291. 



SIDERITE, as a rock, 1583, 2052. 

 embracing magnetite, 388. 

 in arkose, 389. 



" glassy matrix, 1289, 2053. 



" granite, 319, 2266. 



" jaspilyte, 385, 388, 903, 907, 1565. 



" limestone, 312. 



" quartz-porphyry, 426, 428. 



" slate, 326, 395, 397 



