VOL. II. PLATE XVII. 



FIG. 88. Albite. 



^ r ?f r ^ +) 5 / (P f + 

 2~* ~~%' ~~~ "2 



x P I T 



^ ( ?r . ?r fr) 



pr 4- QD. -1 - _ : 4- _ . _ f . 



J/ 



FIG. 89. Prismatic Axinite. 



./)!. rL_^l Pr+oc. 

 4 2 



/ P r 



FIG. 90. Prismatic Axinite. 



4 



FIG. 91. Prismatic Axinite. 

 Pr P P 



t t y 



rr jOfc) 



44 



FIG. 9^. Pyramidal Lead-baryte. 



P oo. 2 -^- 2 P 3. 



a & 



FIG. 93. Pyramidal Lead-baryte. 



p* oo, Vj> P 3. P. 



