VOL. II. PLATE V. 



FIG. 25. Prismatic Corundum. 



Pr. P. (P + oo) 3 . Pr + QD. Pr + oo. 

 i o s T M 



FIG. 26. Prismatic Gypsum-haloide. 



P_oo. P. (Pr) 3 . (P) 3 . Pr + oo. 

 P o n f T 



Pr 4- ex. 



M 

 FlG. 27. Prismatoidal Manganese-ore. 



P OD. Pr. P. (Pr I) 5 . P + GD. 



o d P y M 



(?r + oc) 5 . 



s 

 FIG. 28. Peritomous Hal-baryte. 



P QD. P 1. P. fr + 1. P + x. 

 o z y P M 



Pr + oo. 



h 

 FIG. 29. Hopeite. 



P oo. Pr. P. (Pr -f- oo) 3 . Pr + oo. 

 g M P s p 



Pr + oo. 



I 

 FIG. 30. Prismatic Melane-giance. 



Pr. P. (Pr) 3 . (Pr + OD) 3 . Pr + oc. 

 o P a d p 



Pr + x. 

 s 



