65 



Overflow Mine, Bobadali. — Small quantities o£ cuprite and Case 

 azurite occur in the upper levels. 



8188, Goodrich Mine, Yeoval : a siliceous copper-pyrites 

 ore with molybdenite — the plumbago-like mineral — and chlorite. 

 Copper glance occurs also at this mine (1825). 



Blayney. — Native copper (1756), red oxide (1773), black oside 



(1840), green carbonate (1805), copper pyrites (1823). 



Carcoar. — 9274, from the old Coombing Mine, shows copper 

 pyrites with magnetic iron pyrites — the bronzy mineral. 



"Woodstock. — The rich bunch of ore found at the Burlej 

 Jacky Mine is represented by 820 (bornite) and 8180 (peacock 

 ore). 1163, in gold-case 52, shows free gold on bornite frona 

 this mine. 



Tuglow, Burraga, Cow Plat. — Eich patches of ore have 

 occasionally been found in the Jenolan District. 8788, from 

 Hampton, is chlorite*, containing bornite and tourmaline; the 

 association with tourmaline is most unusual. 



Eugowra, Condobolin, Cargo (DolcoathMine), Parkes. — 7985v 

 16 miles IST.W. of Parkes, is specially exhibited, because it 

 illustrates a frequent mode of occurrence of copper ores in the 

 western districts of the Colony, viz,, in the volcanic rock called 

 andesite. 7985 is a dark purple andesite, with conspicuous 

 crystals of felspar in one portion. Epidotef is also present in 

 cojasiderable quantity. Por comparison with the valueless 

 epidote, a piece of true green carbonate of copper is placed in 

 the same tray. 



Walli. — 3817 is an altered basalt (melaphyre), with specks of 

 native copper. The occurrence is of no commercial value, but it 

 is of interest in being analogous with that of the Lake Superior 

 Mines (case 84, see page 110). 



Orange. — 



* The dark green chlorite was at first taken for orbonate of copper. 



t Epidote. a greenish-yellow mineral, frequently resulting from the intense alteration ot 

 igneous rooks such as andesite. It is sometimes found showing specks of native copper, 

 but in no known case is it of value as an ore of copper. 



