48 



PHYSIOGRAPHY. 



Axinite. 



Secondary form. 



Fig. 51. 



Cleavage indistinct and interrupted. 



Fracture conchoidal, uneven. 



Surface of M and T irregularly streaked. The secon- 

 dary faces are smooth and shining. 



Lustre vitreous. Color clove-brown, various shades in- 

 clining to plum-blue and pearl-grey. Green from an ad- 



