76 
The ore so far has been confined to the harder kernels, of which there 
appears to be a regular succession southwards in the underlay shaft (Fig. 32). 
Between the boulder first found and the underlay shaft is a distance of 20 
feet, and in width the ore may extend much further in the hornblende 
diorite than as yet proved. Ore has been followed on the underlay for 30 
feet, and the best assays have come from near the bottom of the shaft. From 
the lowest workings to the top cut is over 70 feet. 
Fig. 32.—Section showing Underlay Shaft and Cuts. Scale, 30 feet to 1 inch. 
Several samples of the hornblende diorite from the metalliferous portion 
of the boss w T ere obtained, and assayed at the Geological Survey 
laboratory. 
Assay. 
Where taken. 
Description. 
Platinum. 
Gold. 
Silver. 
Copper. 
No. 
498 
Seven feet from 
the bottom 
of the shaft 
Hornblende 
diorite with 
carbonate 
and sulphide 
ore 
Dwt. gr. 
1 22 
Dwt gr. 
0 16 
Dwt. gr. 
3 10 
Percentage. 
0-60 
499 
Surface boulder 
Hornblende 
diorite with 
sulphide ore, 
&c. 
0 4 
0 4 
0 20 
0 17 
500 
Outside shell of 
a hard kernel 
near bottom 
of shaft 
Hornblende 
diorite with 
carbonate 
ore 
0 20 
0 
2 3 
0-17 
501 
Bottom level in 
shaft 
Main diorite 
mass in which 
the harder 
kernels occur 
0 3 
Trace 
2 0 
Trace 
502 
Middle cut 
about 30 feet 
above the 
lowest cut 
Hornblende 
diorite from 
the outside 
shell of an 
ore kernel, 
shows oar- 
bonates, &c. 
0 4 
Trace 
0 18 
0 10 
