414 



RECORDS OP THE AUSTRALIAN MUSEUM. 



MONAZITE. 



The Gulf, near Emmaville, New South Wales. 



(Plate Ixxviii., fig. 2). 



The crystal is reddish brown, somewhat worn and not 

 measurable on the reflecting goniometer, but the angles ob- 

 tained with the contact goniometer are sufficiently good for 

 determinative purposes. The crystal measures 1 -5 X 1 '5 x "5 cm. 

 and is twinned on (100). It is projected on the plane (010) and 

 drawn in ideal symmetry. 



Specific gravity : 5'152. 



SCHEELITE. 



Hillgrove, New South Wales. 



(Plate Ixxviii., fig. 3). 



At Hillgrove scheelite has been found in considerable quantity 

 but it seldom occurs in crystals. One specimen consisting of a 

 number of fragmentary crystals gi'ouped in parallel position is in 

 our collection and is here figured. It is greyish and translucent ; 

 the faces are rough and striated, and the angles obtained with 

 the reflecting goniometer are not very satisfactory. Specific 

 gravity : 6'00. 



A io 

 A e 



Measured. Calculated (Dana). 



= 131 A 131 = 23^ 20' 23° 16' 



= 131 A 111 = 28 18 28 21 



= 131 A 101 = 67 12 68 ISi 



