XVI 



ANALYTICAL KEY. 



in taconyte, 1307, 53S, 61S. 



with tuff, 1311. 



poikilitic, 388, 903, 907, 1307, 1365. 



SILICA-KAOLIN, analysis, 1701. 

 SILVER, with copper, 572. 



SPHENE, in diabase, -<>."">. 



in dioryte, 333, 339B. 



" esterellyte, 1399, 1400. 



" granite, 310, 435, 728, 1999, 2046, 2248, 491G. 



" muscovadyte, 2198. 



" quartzyte, 270. 



" quartz-porphyry, 417G, 24W. 

 secondary, 19H. 

 surrounding ilmenite. 227S. 

 STAUROLITE, in mica schist, 849. 



STILBITB, 131A, 634A. 



in vein, 112A, 172A. 



TALC, 349. 



THALITE, 91B, 162. 

 analysis, 91B. 



in diabase, 70, 101, 171, 172, 630. 

 " tuff, 125. 



THOMSONITB, 163A, 535, 535A, 558A, 575, 625B. 

 analysis, 570A, 575. 

 from labradorite, 90B. 

 in diabase, 106, 193, 200A. 

 with mesotype, 637A. 

 " prehnite, 573. 



TITANITE, see under sphene. 



TOURMALINE, in conglomerate, 737. 

 in gabbro, 773. 

 ' granite, 1030. 

 " graywacke, 473. 

 mica schist, 395, 1708. 

 " quartz schist, 2162. 

 " i|uartz-porphyry, 2237. 

 " quartzyte, 1525(a). 

 " slate, 395, 1852. 

 " syenyte, 993. 

 " vein, 352. 



TREMOLITE, ISA, 1137. 

 in schist, 1453. 



UBALITE, 1386, 1847, 1942, 2054, 2255, 2256, 2258. 



VlRIDITB, 116. 



WAD, 1694. 



ZEOLITE, analysis, 575. 



see under mesolite, thomsonite, etc. 



ZIRCON, 7B, 991. 



in conglomerate, 254, 1902. 

 " sandstone, 256. 

 " quartzyte, 226S. 



ZOISITE, in diabase, 567. 

 in dioryte, 861. 

 " gabbro, 699, 1686, 1801. 

 " greenwacke, 868, 868A. 

 " porphyrel, 1297. 

 i " quartz-porphyry, 387. 

 "" huronite, 601, 



