95 
Further south-west a shaft has been sunk 60 feet on a quartz lode that 
strikes E. io deg. S., and dips north for 20 feet, and then dips south to 
the bottom of the shaft. Thickness of lode 6 inches. Portions of the lode 
are rich in tin oxide, but no systematic tests have been made to determine 
the exact percentage. About 1 chain north from this shaft is an exposure 
of a quartz lode 11 inches thick with a little tin oxide through the quartz. 
Still further west thin veins of tin ore occur in the metamorphic rock. 
In all the above lodes tourmaline (black) occurs more or less abundantly, 
and in many of them tufts of white mica, are abundant, especially along the 
sides of the lodes. 
On the western side of the gully, at the head of Cudgewa Creek, two 
small lodes bearing tin oxide have been opened up. The northern one has 
been traced for 10 chains in length by shallow openings. The strike is 
E. and W., dip 75 deg. N., thickness 4 inches. Cassiterite occurs freely 
distributed through the quartz lode, and there is a considerable proportion 
of black tourmaline present. The southern one strikes a few degrees; to> the 
N. of W. and dips 80 deg. N. It is a quartz vein with cassiterite and 
black tourmaline and 3 inches thick. Very little work has been done on it. 
The Track lode is near the north-east corner of the lease. A shaft is 
sunk 23 feet. The lode is; of quartz with black tourmaline. The strike is 
about E. and W., dip 70 deg. N., thickness 12 inches. A fair amount of 
cassiterite in rather large grains is distributed through the quartz. 
An interesting feature is the presence of scheelite in the lodes with the 
tin oxide. At the 60-ft. shaft it is particularly plentiful. Wolfram was 
not observed. Rutile is also* commonly present with the alluvial cassiterite, 
which has been extensively worked on the south bank of the Cudgewa 
Creek, and from which extremely good returns are said to have been won. 
A little gold is also found. These workings; are just outside the present 
lease. South of the workings and stretching up the slopes towards the 
crest of the mountain the surface is thickly strewn with quartz derived from 
quartz lodes. Cassiterite is not uncommon in small grains and pieces in 
these fragments from the lodes, and in all likelihood there is alluvial tin 
ore that would be profitable to work if water could be brought to this level 
for sluicing. To the height at which water is available, the ground has 
been sluiced with profit. It is noticeable that there is very little titaniferous 
iron associateo with the cassiterite on the mountain itself (20 tons of 
cassiterite to' 1 ton of titaniferous iron sand), while lower down the same 
creek the proportion is about eight of titaniferous iron sand to one of cassi¬ 
terite. This implies that the titaniferous iron is derived from the granitic 
rocks drained by the creek, but that it does not occur in the lodes or in the 
rock containing them on Mount Cudgewa. 
The cassiterite obtained along the south bank of Cudgewa Creek at its 
source is angular and in coarse grains ; it is of the brownish colour peculiar 
to this tract of country. Lower down the creek the grains become more and 
more rounded. 
In the tunnel driven from the south side of Mount Cudgewa in a N. 
10 deg. W. direction for 250 feet, the first 70 feet was through soft 
picking rock (decomposed granitic material). At 200 feet in, an intensely 
hard bluish-grey rock was encountered in which are white felspathic veins 
with a little tin oxide occasionally present. At 195 feet in, a segregatorv 
vein of quartz 2 feet wide with some cassiterite disseminated through it was 
cut. At 224 feet in, a segregated quartz vein 6 inches thick also carrying a 
little cassiterite occurs, but the downward continuation of the lodes showing 
on the top of the crest has not yet been reached. 
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