159 
A reef channel, in places up to 14 feet wide, has been formed between 
what are undoubtedly the walls of an extensive fault line. Quartz veins, 
segregations of quartz and black clayey material, all of which are 
Scale, lOOfeet fo I inch . 
Fig. 36. 
more or less pyritic,* now occupy this channel; and there is every indica¬ 
tion that further breaks occurred along and in the fault line subsequent 
to the formation of the quartz veins, as much of the quartz in situ shows 
clean fractures partly filled with a secondary deposit of pyrites. 
Auriferous quartz can be obtained only in a very narrow shoot, probably 
not more than 1 or 2 feet in length, the other portion of the quartz being 
barren. Along this limited shoot, auriferous quartz specimens can some¬ 
times be obtained. 
In my opinion, the fissure constituting the lode channel extends both 
vertically and horizontally for a very considerable distance, but whether 
the limited auriferous quartz within the channel will become more extensive 
in a downward direction can onlv be determined by mining operations. 
One feature which must not be overlooked is that, owing to the surface 
fall and loss of level in driving, the further the drive is extended southward 
down stream, the nearer the face of the drive will approach the surface. 
I do not think that any good purpose will be served by extending the 
workings northward, as no gold appears to have been found in the stream 
above, or to the northward of the mine; and should the company determine 
*Two samples of pyrites submitted for assay. They consisted of pyrites with 
a little slate and quartz, and gave the following results :— 
Oold 
: per 
ton. 
Silver : per 
ton. 
ozs. 
dsvts. 
gTS. 
ozs. 
dwts. 
grs. 
1 
13 
8 
0 
0 
0 
4 
6 
5 
0 
3 
22 
No. 1 
No. 2 
