VOL. II. PLATE XXVIII. 



FIG. 150. Rhombohedral Emerald. 



R oo. P. 2(R). P + l. 2((P 

 P t s u a 



P +00. 



M 

 FIG. 151. Octahedral Fluor-haloide. 



H. D. 



i s 

 FIG. 152. Octahedral Fluor-haloide. 



H. A*. 



i sc 

 FIG. 153. Hexahedral Kouphone-spar. 



H. Ci. 



P o 

 FIG, 154. Dodecahedral Garnet. 



D. Ci. 



P n 

 FIG. 155. Hexahedral Lead-glance. 



H. O. D. B. 



P c o I 



