33 



yield is from 2 to 4 dvvfc. of gold to the ton, but assays of 9 dwt. 

 or more have been obtained, the loss being due to the extreme 

 fineness of the gold. Several very narrow veins of auriferous 

 quartz, and a dyke of eurite — Avhich is itself gold-bearing in 

 places — traverse the granite. The secondary minerals found in 

 the granite are quariz^ iron and arsenical' pyrites, molyldcnite, 

 and native bismuth. The points just referred to are all illustrated 

 by specimens. 



Drake — 



8783, Sawpit Gully Mine, Drake : Breccia from the 100-f t. level. Case 53. 

 Crypsum associated with free gold. This ore also contains silver. 

 (See case 53). In the ore from Long Gully (Lady Jersey Mine), 

 Drake, zinc blende is associated with free gold. 2155 shows 

 gold conspicuously seated on blende. Another gold-bearing 

 breccia is that from Wann's Lode, Drake ; it consists of igneous 

 material — f elsite (6593) . 



2301, in upright case 125, at lower end of room : Quartz 

 showing gold ; Lady Jersey Mine. 



Oheron, Neiohridge, Batliurst, Sofala, Tuena — "Western 



district. 



8540, TIazelgrove, near Tarana : IVoteworthy in containing 

 much telluride of bismuth, associated with free gold. So far as 

 is known, the telluride is not auriferous itself. 



The exhibit from Gllmandjke (9167-8 ; also 9167., 9169, 9091 

 in case 50) is rich in attractive mineral specimens. Thus we 

 have gold on calcite, galena, talc, and serpentine from this one 

 mine. 9168, gold on fibrous serpentine, may be compared with 

 similar specimens from Gundagai (case 55, p. 10). 



7670, Quartz from Clear Creek ; shows gold seated on galena. 



6676, "Wattle Flat : gold seated on arsenical pyrites. 



2158, Eazorback, Ilford : gold-bearing sulphide of antimony 

 ore (c/. Hillgrove, case 51). 



Carcoar, Mandarama, Blaynpy, LucJinow. — The ore from the CaSG 52. 

 different mines at Manlurama is of a very peculiar and interesting 



