ANALYTICAL KEY. 



Xlll 



CHALCOCITE. 400. 



CHALCOPYRITE, 2G7A, 695, 701, 2272. 



CHLORASTROLITE, 570A. 

 in amygdules, 566. 

 " diabase, .")<>7. 



CHLORITE, embracing grunerite, 379H. 

 from garnet, 401. 

 " olivine, 568. 

 in amygdules, 8C. 

 " diabase, 107, 245, 2i>5. 

 " greenwacke, 868. 

 " pseudamygdules, 186. 

 " i|uartz-porphyry, 311. 

 " schist, 379, 869. 

 massive, 2277. 



see under clinochlore, pennine, etc. 



CLINOCHLORE, in conglomerate, 254. 

 in dioryte, 2195. 

 " greenstone, 356. 

 " kersantyte, 2178. 



COPPER, 581. 



in conglomerate, 557. 

 " diabase, 200, 200A. 

 " iron ore, 2278. 

 " Keewatin, 2278. 

 " scales, 584. 

 stamp ore, 578. 

 with adularia, 583. 

 " epidote, 569. 

 " prehnite, 80. 

 " silver, 582. 



CORDIERITE, in amphibolyte, 1043. 



in biotite schist, 1039, 1708, 2055, 370H. 

 " gneiss, 1042, 1090, 1092, 1805. 

 " greenwacke, 1966. 

 poikilitic, 1042, 1092. 



CUMMINGTONITE, 1896. 



in amphibolyte, 397(a)H, 1919. 

 " quartzyte, 399H. 

 " schist, 950, 957. 

 " sideryte, 2052. 

 " taconyte, 39S. 



CUPRITE, 581. 

 DAMOURITE, 1367. 



DELESSITE, 575, 1847, 1895. 



in diabase, 187, 244, 571, 572. 



DIALLAGE, 158E. 



alteration of, 305, 531. 

 from augite, 300. 

 in diabase, 115, 222, 1605. 

 " forellenstein, 514. 

 " gabbro, 1, 1C, CJI2, 698, 985, 113(5, 1137. 12S7, 



1678; 1749, 989G. 

 " granulitic gabbro, 122. 

 " quartzyte, 13G4. 

 " muscovadyte, 1287, 2201. 

 intergrown with enstatite, 1340, 2199. 



" hypersthene, 22(12. 

 poikilitic, 1340, 847G, 857G. 



DIOPSIDE, 1128. 



in diabase, 137. 

 " gneiss, 1805. 

 " granite, 132A. 

 " quartzyte, 1724. 



DOLOMITE, 824. 



in slate, 453. 



EDENITE, 2231. 



ENSTATITE. differentiated from augite. 133. 

 in gabbro, 698, 715, 787. 

 " noryte, 983. 

 " peridotyte, 21'.H). 

 intergrown with diallage, 1340, 2199. 



EPIDOTE, 19A. 



as a rock, 569, 842. 

 in amygdules, 8C. 



" diabase, 567, 1949, 2256. 



" dioryte, 403, 1410, 2195. 



" epidosyte, 842. 



" gabbro, 697. 



" granite, 316, 347, 728, 730, 1990, 1991, 1999, 

 2221. 



" graywacke, 383G, 8H. 



' greenstone, 2231. 



" greenstone schist, 2145. 



" quartz -porphyry, 914, 2237. 



" quartzyte and muscovadyte, 1309, 



" schist, 1123. 



" syenyte, 2215. 



" tuff, 2129. 



FAYALITE, in gabbro, 1829, 2058. 



in peridotyte, 1041, 1336, 1365. 

 " quartzyte, 1343. 



FELDSPAR, analyses, 1, 128, 1105, 551G. 

 globulaire, 520, 526. 

 old feldspars, 2189, 2190, 2194, 2208, 2209, 2229, 



2239, 2262, 2275. 

 two growths of, 1051, 1278, 1427, 1436, 1728, 1980, 



1986, 1992, 2194, 2211, 2229, 2276. 

 phenocrysts in quartz-porphyry, origin, 2276. 

 poikilitic, 520, 1852, 594(a)G. 

 replaced by quartz and feldspar mosaic, 22137 



364H. 

 see under orthoclase, labradorite, etc. 



PERHITE, in diabase, 200A. 



FLUORITE, 318. 



in granite, 2046. 

 " vein, 64A. 



GALENITE, 587, 588. 



GARNET, altering to chlorite, 401. 

 in amphibolyte, 881, 1919. 

 " biotite schist, 413, 417. 

 " granite porphyry, 2189. 

 " quartzyte, 1895. 

 " graywacke, 605G. 



GLAUCONITE, 39S, 538, 55S. 

 in conglomerate, 1634. 

 " taconyte, 441, 1276. 



GCETHITE, from olivine, 162. 

 in quartzyte, 1697. 



