32 



PHYSIOGRAPHY. 



Apatite. 



Fig. 34. 



Fig. 35. 



M 



f on s 

 e on 5 

 M on 5 

 r on a? 

 M or M 7 on rf 

 M on e 

 P on cl 

 P on c2 - 

 P on c3 

 P on a 

 M on cl 

 M on c2 

 M on c3 

 M^n&orZ/ 

 6 on a 

 The planes bb are rarely seen together on the same crystal. 



