EXPLANATION OF PLATE XIX. 



Topaz. 



Fig. 1. Emmaville, New South Wales. Stereogram showing all the 

 recognized forms and the i^rinoipal zones. 



Earite. 

 Fiy. 2. St, Peter's, near Sydney, New South Wales. 



Forms and indices as in Aiiglesite below. 



Anglesite. 

 Fig. 3. Maestrie's Mine, Dundas, Tasmania. 

 Fig. 4. Mine Meretrice, New Caledonia. 

 Figs. 5, 6. Lewis Ponds, New South Wales. 



Forms:— (• (001), h (010), a (100), w/ (110), d (102), o (01J),c (111), 

 ,f (122). 



