PHYSIOGRAPHY. 



4pophyllite. 



37 



Secondary forms. 



Fig. 39. 



Fig. 40. 



Fig. 41. P 



127 59') 

 119 30 V 

 '104 2 ) 



120 5') 



128 20 V PHILLIPS* 



104 18 ) 



Cleavage, parallel with the primary faces, most perfect 

 at right angles to the axis. 



Fracture uneven. 



Surface smooth and shining. 



Lustre vitreous. The natural and cleavage face P pos- 

 sess pearly lustre. Color several shades of white, greyish, 

 bluish or reddish. Streak white. Transparent . . . translu- 

 cent. 



4 



