﻿Smith : Benguet Petrography.] 



[Phil. Journ. Sci., Vol. II, No. 4. 



felspar of older 

 generation 



-felspar of younger \ 

 generation 



---I ?s: 



Z»n»\ structure 



greenish yellow 



u 



reddish yellow 



>f" u> tt>^ 



orn blende 

 green 





clouded fetepv 

 <na£n8Hte 



"V _ J"l\-U—franu\sT oroand 



SOxxS-'Lr 5i»»i of ijuarn . 



n fflsper-megrxHIt 



jrellowisn - colorless 



-^dark green 



10 



Znlcttl *ulcitt 



Chlorite 



PLATE 



