242 



PHYSIOGRAPHY. 



Tourmaline. 



(Green.) 

 Paris, (Me.) 



P on s 

 Pon / 

 s on I 

 Pon o 

 o on I 

 Pon n 

 n on n 

 n on s 

 Pon a: 

 Pon t 

 x on x 

 t on t 

 Pon A: 



Fig. 450. 



V 



(fJreen, red and white.) 



Chesterfield, (Mass.) 



Paris, (Me.) 



113 13' 



117 9 



150 00 



141 



135 



156 



155 



102 



158 



151 



HAUY. 



40 

 44 

 43 



9 



26 

 25 



5 



136 

 149 

 152 



50 

 26 

 51 



a 



u 



u 

 u 



Cleavage, parallel with P and s difficult. Fn cture im- 

 perfectly conchoidal, uneven. Surface, the pnsms deep- 



