THE MINERALS OF NEW SOUTH WALES. 181 



Arsenic. 



Native Arsenic. 



In massive pieces with mammillated surface, Lunatic Reef, 

 Solferino. 



Mispickle. — Arsenical Pyrites. 



Chem. Comp. : Sulp-arsenide of iron FeS + FeAs. 



Arsenic, 46*0; sulphur, 19-6; iron, 34-4 = 100. Rhombic 

 system. Colour almost silver white. Streak dark-greyish black. 



Rather large crystals occur with quartz near Goulburn, also 

 Shoalhaven River associated with small hexagonal prisms of beryl, 

 which penetrate the mispickle. In New England, Elsmore, and 

 other places. Near Orange, very rich in gold. On the Moama or 

 Mitchell River near Cooradooral. 



At Carcoar, with marcasite and common pyrites. Gulgong. 



Occasionally the mispickle is exceedingly rich in gold. 



Tellurium, 



Native Tellurium. 

 A rare metal — reported to occur at Bingera. 



Antimony. 



Native Antimony. 



I can find no authentic record of the occurrence of native 

 metallic antimony in New South "Wales, although I believe it has 

 been met with in New England and elsewhere. 



Antimonite. 



Chem. Comp. : antimony sulphide = Sb 2 S 3 . 



Sb = 71-8; S = 28-2 = 100. 



This ore is met with in the massive state in mineral veins, and 

 occasionally in rolled masses ; crystals appear to be rare. 



It occurs on the Clarence and Paterson Rivers, the mineral 

 occuring in masses of large size, and showing broad, well-defined, 

 striated cleavage planes, portions of the surface usually being 

 incrusted with a yellow coating of cervantite, an oxide of antimony 

 = Sb0 4 . 



It is found associated in many parts of New England with 

 tinstone, molybdenite, wolfram, and other minerals. 



Localities. — Tenterfield, Armidale, Gresford, Rylstone, Rocky 

 River, Grafton, Macleay and Hastings Rivers, near Mt. Mitchell, 

 Boorolong, Gara, Drake, Nundle Gold Field, Solferino, Wallerawang, 

 Gundagai, Shoalhaven River, Eden, Twofold Bay. 



The Rev. W. B. Clarke records finding a rolled mass on the 

 North Shore. 



