92 
There is a great deal of titaniferous iron ore with the cassiterite— 
8 tons titaniferous iron to- i ton cleaned tin oxide, so the manager 
informs me. A sample of the concentrates examined at the Mines 
Laboratory was found to consist principally of titaniferous iron, with a 
little quartz and some garnet fragments, and about i per cent, of cassiterite. 
This sand also contains some monazite, rutile, and' zircon. If it can be 
worked profitably there is a considerable length of the wash yet to be 
dealt with higher up the creek. Below this site the stream tin was worked 
by sluicing about 30 years since. 
About 1 mile westerly, on the road to the Annandale Syndicate’s work¬ 
ings, there is Tertiary country that would be worth boring to discover 
whether it carried alluvial tin or not. 
The Annandale Syndicate. 
The ground worked by this syndicate lies about 3 miles in a westerly 
direction from the Excelsior workings, and is about 2,100 feet above sea- 
level. The nature of the deposit worked is much the same. First there 
is red soil for 3 or 4 feet, then mottled clays for 4 or 5 feet with 2 to 5 feet 
of wash at the bottom resting on decomposed granitic rock. 
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Fig. 14. 
Sketch Section at the Excelsior Tin Mine, Koetong. 
The method of working here is by means of a tail race and sluicing, 
but the water supply is rather limited, and the water has to' be brought for 
some miles. The wash-dirt containing the tin ore is much more water- 
worn than at the Excelsior ground, and quartz pebbles containing tin ore 
are very common. The quartz is evidently from granitic country and 
contains abundance of black tourmaline. There are occasional pebbles 
of pink colour and somewhat fibrous texture. Here also a great deal of 
titaniferous iron is saved with the cassiterite and in about the same pro¬ 
portion as at the Excelsior workings. No very large pieces of tin ore 
appear to have been found in this tract. The Tertiary doposit here is right 
on the divide and there is some reason to expect that it would be worth 
while to prospect the surrounding country for other portions of what must 
have been a once continuous lead, the source and end of which has not yet 
been determined. About a mile northward some quartz veins carrying tin 
ore were tested in a small way many years ago but nothing further has 
been done, although some very rich nuggets of tin ore were got there. 
Altogether several acres of stanniferous gravels appear to have been worked 
profitably in the Annandale neighbourhood, and there would be more work 
still to do if water could be got for the purpose, but there is only the one 
