96 
Mines and Mineral Statistics. 
Certain portions of tlic rein arc evidently richer than otlicrs. 
At present tlic average yield of metallic iron from the vein, as a 
Avliole, is not rich for aniagnelite, wliicli, when perfectly pure, contains 
72‘4d per cent, of iron, and under ordinary eircumstanecs about 70 per 
cent., whereas the AVallerawang vein yields only 40*80 per cent. (See 
anald/sis (f p’pended .) Althougli this is a poor magnetite, it must not be 
regarded as a poor ore of iron. 
This average was obtained by talcing samples from different parts, 
across the whole width of the trench cut across tlie vein, and tlien 
crushing them all up together. As 1 have before mentioned, picked 
portions jdeld a much larger percentag(‘. 
On the whole, taking all the circumstances into consideration, wo 
may come to the conclusion that the true capahilitics of the deposit of 
magnetite have not yet been fully tested or j)roved. 
The vein stuff or ganguc accompanying the mngnetic iron ore is 
silicious. In some parts of tlie lode this a])pcars to be replaced the 
ferruginous garnet rock. 
On analysis this ore yielded the following results : — 
Silica and insoluble matter... ... 18*70 per cent. 
Metallic iron ... ... ... ... 40*89 „ 
Pliosphorus ... ... Traces. 
Sulphur Traces. 
Both the phosphorus and the sulphur arc present in such minute 
quantities that the ore may be regarded as virtually free from them ; 
and these arc the only really deleterious substances present ; for 
although there is too large a ([uantity of silica and ganguc present in 
this superficial portion of the vein to permit of malleable iron being 
made from it by a direct process, it is extremely well adapted for 
reduction in tlie blast furnace. 
2. Garnet. — Tlic garnet occurs botli crystallized, in the form of the 
rhombic dodecahedron, and in the massive state. Tlie crystals are, as 
is usually the ease very uniform in size; they arc nearly all of tliem 
either about or J of an inch in diameter. 
The faces of the cry.stals are smooth, free from pits and irregulari- 
ties, and hounded by sharp and well-dclinod edges. The colour is 
brown without any red shade. 
Portions of the massive garnet and aggregations of crystals are hard 
and compact, whilst iu other parts they are more or less disintegrated 
and friable. 
The average percentage of metallic iron is 21*05 — an amount not 
mucli less than that contained by many commonljr smelted ores. 
:h Brown Hematite. — The general direction of the outcrops of this 
deposit is not so regular as that of the magnetic lode, and it will pro- 
bably be found that other veins run into it, hut for a large portion of 
its course it runs approximately N.E. by S.W. 
Although the back of the lode does not absolutely come to the 
surface along its entire course, yet there is a great probability of all 
the different outcrops being connected beneath the surface — in which 
case the total length of the deposit, as far as it has been at present 
traced, cannot be much less than one mile. 
Along this line of outcrop the ore is seen scattered all over the 
surface in great blocks and nodules, either completely exposed or but 
