VOL, II. PLATE XXXIII. 



FIG. 180. Hexahedral Gold. 



o 

 FIG. 181. Di-prismatic Copper-glance. 



P oo. Pr 1. fr. fr+1. Pr 1. 

 Jc e d f o 



(?r I) 3 . P. Pr. (?r+oo) 3 . 



y P p n 



f r -f oo. Pr -f- oo. 

 s r 



FIG, 182. Rhombohedral Ruby-blende. 



R 1. P+oo. R+ !. R 1. 



z n g z 



FIG. 183. Henri-prismatic Ruby-blende. 



P_. -^ r +J. P + oo. 



it 



b t f 



FIG. 184. Henri-prismatic Sulphur. 



Pr P (Pr) 3 Pr P 



T* ' ~2~ " or " ~%* 



t n q P n ' 



_ (Pr) 3 (f) 3 p 



nr' "- + * 



4 * f 



(?r+oo) 7 . (Pr+oD) 3 . (Pr+oo) 5 . 



W g V 



Pr -|- oo. Pr + oo. 



s u 



FIG, 185. Allanite. 



