PHYSIOGRAPHY. 



Topaz. 



237 



3. It is found near St. Agnes in Cornwall, and at Zinnwald in 

 Saxony. 



TITANITE. (See Sphene.) 

 TITANITIC IRON. (See Crichtonite.) 



TOPAZ. Prismatic Topaz. MOHS. 



Primary form. Right rhombic prism. M on M=-124 

 19'. 



Secondary forms. 



Fig. 439. Fig. 440. 



M 



M 



M 



M 



Trumbull, (Conn.) 



Trumbull, (Conn.) 



Fig. 441. 



M 



M 



Trumbull, (Conn.) 



