ORDER VI. GENERA AND SPECIES. 



Wernerlte. ii. 264. 



Albite. ii. 255. 



Anorthite. iii. 71. 



Elaolite. ii. 93. 



Felspar from Baveno. Vulg. ii. 258. 



Felspar from the Saualpe. Vulg. ii. 257. 



Labradorite. ii. 257. 



LatroUte. iii. 118. 



Nuttallite. iii. 133. 



VIII. AUGITE-SPAR. Prismatic. 

 Lustre not metallic-pearly. 

 H. = 4-5 ... 7-0. 

 G. = 2-7 ... 3-5. 



H. above 6-0 : G. = 3-2 and more. 

 G. under 3 2 : cleavage oblique-angular 

 peritomous, perfect. 



w w 



1. PARATOMOUS. Hemi-prismatic. = 120 (X. _ = 



2 2 



73 54'. Inclination = 0. 

 Cleavage, (Pr + os)^ = 87 5'. Pr +00. Pr + oo. 



P 



Sometimes _. 

 2 



H. *= 5-0 ... 6-0. 

 G. = 3-2 ... 3-5. 



Pyroxene. ii 268. 







2. HEMI-PRISMATIC. Hemi-prismatic. . = 148 39'. 



& = 75 2'. Inclination = 0. 

 2 



Cleavage, (?r + oo) 3 = 1 24 34'. Less distinct, Pr + w . 

 Pr + oe. 



