280 



RECORDS OF THE AUSTRALIAN MUSEUM. 



PHOSGENITE. 



Broken Hill, N. S. Wales. 



(Plate lxxxi., figs. 1, 2.) 



The description is founded ou a hand specimen of 6 x 5| cm. 

 almost entirely composed of stout prismatic crystals colourless 

 and nearly transparent. The figured crystal is a fragment of 

 8x4x4 mm., terminated below by the basal cleavage. The 

 largest faces are c(001), m(110) and a (100), but the develop- 

 ment is very irregular. The faces are in general somewhat 

 etched, but the reflections are good. The m prism is slightly 

 striated in the vertical direction. 



MEAN ANGLES. 



MONAZITE. 

 Trundle, near Condobolin, N. S. Wales. 



(Plate lxxxi., figs. 3, 4.) 



We are indebted to Mr. Charles Bogenrieder for the loan of a 

 collection of isolated crystals, the largest measuring approximately 

 3 cm. in greatest diameter. The colour is reddish-brown, the 

 lustre good, but the faces in general are imperfect, being wavy 

 and irregular In habit they are tabular on a (100) ; v (111) is 

 a fairly large form. A probable new form, p (103) is present as 

 a rather large face, which, however, is wavy and gives only an 

 approximate measurement. The pinacoid a is slightly striated 



