EXPLANATION OF PLATE XIII. 



Topaz. 



Fig. 1, 2. Cow Flat, near Torrington, N. S. Wales. 



,, 3,4. Stanthorpe, Queensland. Inorthographic and clinographic pro- 

 jection. 



,, 5. Pakenham, Victoria. 



,, 6, 7. Pakenham, Victoria. Inorthographic and clinographic pro- 

 jection. 



Forms.— c (001), 6(010); m(U0), M(230), ^ (120), ^(130), n(140), *7(160); 

 / (501), d (201), A (203),/ (021), y (041) ;o (221), « (111), i (223), 

 x (243). 



