64 



RECORDS OF THE AUSTRALIAN MUSEUM. 



angles vary between rather wide limits, and it is desirable that 

 the forms be confirmed before they are finally accepted. 



New forms : — 



Y and v form narrow planes between m and o, and m and y 

 respectively; X is sometimes a fairly large face, but it does not 

 give a sharp image. The general habit of the crystals is 

 sufficiently indicated in Plate xiv., figs. 1-3. 



Angles : — 



(2) The characteristic habit of Block 14 anglesite is shown in 

 Plate xiv., fig. 4 ; the crystals are shortened vertically, and the 

 prism zone may be entirely wanting as in one measured crystal 

 which is a combination of </, I, o, y simply, forming a flattened 

 plate. The crystals, which are associated with galena and 



