53 



Swnnj/ Corner. — The gossan contains native silver in an 

 exceptionally finely divided form (1530 ,^ and often becomes 

 stalactitic (1529 j. Eeneath the gossan comes a siliceous mixed 

 sulphide ore (8267-g-9). 



Bohadali, Overfloip Mine. — Copper and lead minerals (cuprite, 

 7631 ; cerussite, 7G19 ; galena, 7726) occur above vi-ater-level. 

 The sulphide ore is siliceous and contains much pyrites (7727). 



Cohar District. — Silver minerals are sometimes associated with 

 the gold-bearing slate. 4072, from Billagoe, show chloro-bromide; 

 while 8938, from the 120-ft. level, Great Peak Mine, Cobar, 

 shows the same mineral abundantly. Euby silver has been found 

 at Drysdale (£974, case 54. 



9129, Chesney Mine, Cobar, in case 125: quartz showing 

 silver chloride and free gold. 



1524, Adelong Creek : galena associated with magnetic pyrites. Southern 

 assaying 28 oz. silver and 8 dwt. of gold per ton, and closely ^^*^^'^*" 

 resembling some of the ore from the Pinnacles Mine (8291, 

 case 61). 



Jingera, Whipsfick. — Here the ore consists essentially of a 

 decomposing granite impregnated with bismuth sulphide. 8566 

 shows an abundance of the bismuth sulphide — the grey mineral ; 

 it assays 900 oz. silver per ton and 18^ per cent, of bismuth.* 

 A good deal of molybdenite occurs in the granite : it can be 

 well seen in 8383, where it has a bluish tint by contrast with 

 the grey -black bismuth sulphide. Silver chloride has been found 

 here (1522). 



8557, Moruya Grold and Silver Mine: rich arsenical pyrites 

 and galena. 



Breclbo. — Silver-lead ores. 



Captairis Flat. — See also Copper, case 63. 



Boro. — Silver-lead ores. 



* Only a very small patch of this ore was found. 



