C»35 3 



quartz, feltfpar, hornblende, and mica; fome- 

 times found flaty. 



c. Granatine; compofed of quartz, feltfpar, 

 fchorl ; quartz, feltfpar, garnet ; Sec. Sec. Sec. 



Saussure. 



d. Granitell ; or Grunften ; amorphous ; com- 

 pofed of quartz, feltfpar; quartz, fchorl; quartz, 

 mica, Sec. Kirivan. 



e. Granalite; amorphous; compofed of quartz, 

 feltfpar, mica, fchorl ; quartz, feltfpar, mica, He- 

 at ite, Sec. 



f. Gneiss ; amorphous ; flaty, fibrous, lamel- 

 lated; contains quartz, feltfpar, and mica. Wer- 

 ner. Saussure. 



g. Siliceous Porphyry; amorphous; compact, 

 flaty ; confifting of cryftals of feltfpar in a bafis 

 of jafper, hornftone, pitchftone, obfidian, filiceous 

 fchiftus, fchiftofe hornblende or feltfpar. 



h. Pudding Stone; amorphous; confifting of 

 rounded pebbles in a filiceous cement. 



i. Siliceous Sandstone ; amorphous ; the grains 

 often flightly compacted together, and eafily 

 breaking into fand; of this kind is Salindre y con- 

 fifting of calcareous grains, inferted in a filiceous, 

 cement. 



k. Siliceous Breccia ; amorphous ; confifting 

 of angular fragments of filiceous ftones in a fili- 

 ceous cement. 



CLASS 



f 



