PHYSIOGRAPHY. 



Turnerite. 



251 



3. It is found associated with Wolfram and Tungsten at Lanes' mine 

 in Monroe, (Conn.) usually in very thin coatings, rarely rilling up small 

 cavities. 



TURNERITE. 



Primary form. Oblique rhombic prism. 

 96 10'. P on M =99 40'. 

 Secondary form. 



Fig. 455. 



M onM = 



P on a 



Pn/ 

 M on a 

 M on gl 

 M on h 

 M on / 

 P on ci 

 P on c2 



Cleavage parallel to both diagonals of the primary form, 

 one of them more perfect. 



Lustre nearly adamantine. Color several shades of yel- 

 low, often inclining to brown. Sireak white, sometimes 

 greyish. Transparent . . . translucent. 



Scratches Fluor pretty readily, but yields to the knife. 



1. According to the blow-pipe experiment of Mr. CHILDREN, it con- 

 sists chiefly of alumina, lime, magnesia, and a little iron with traces of 

 silica. 



