1918.] The N.Z. Journal of Science and Technology. 
13 
The following table shows the amount of ore crushed and the yields of 
gold and scheelite concentrate to date 
Year ending 31st December. 
Ore crushed, 
in Tons. 
Gold, in 
Ounces. 
Scheelite 
Concentrate, 
in Tons. 
Scheelite, 
Value. 
1910 .. 
1911 .. .. 
1912 .. 
1913 .. 
1914 .. 
1915 .. 
1916 .. 
Totals . . 
355 
1,659 
3,500 
8,180 
15,814 
17,484 
15,550 
37 
327 
540 
1,421 
2,114 
3,335 
1,856 
j ^6* 
86* 
110 
u* 
£ 
10,070 
9,327 
14,133 
14,117 
62,542 
9,630 
364* 
47,647 
The gold from the Dominion Consolidated Developing Company’s mine 
is worth about £3 15s. per ounce. 
Quartz Veins. 
The lode worked by the Dominion Consolidated Developing Company 
at Deep Creek has been definitely traced for a distance of 90 chains. The 
strike is north-north-westerly, and in the Empire City section the dip is 
easterly at about 70° for the first 200 ft. of depth, below which it rapidly 
changes to about 30° ; farther north, in the Golden Bar section, the dip 
is about 75°. 
The country consists of gently dipping schists, which are not so meta¬ 
morphosed but that their original nature and structure can generally be 
made out. Evidently they are altered from massive beds of greywacke 
containing some thin bands of finer material. The rocks are deeply 
weathered, and it is only in artificial excavations that fresh samples can 
be obtained. The following analyses by the Dominion Analyst may 
quoted 
(1.) 
(2-) 
Silica (Si0 2 ) . . 
.. 68-93 
62-97 
Alumina (A1 2 0 3 ) 
. . 12-66 
14-37 
Ferric oxide (Fe 2 0 3 ) 
1-64 
2-24 
Ferrous oxide (FeO) 
3-67 
4-68 
Titanium dioxide (Th0 2 ) 
0-45 
0-64 
Lime (CaO) 
2-44 
3-75 
Magnesia (MgO) 
1 *62 
2-14 
Soda (Na 2 0) .. 
3-47 
3-98 
Potash (K 2 0). . . . 
1-78 
2-24 
Moisture lost at 100° C. 
0-10 
0-14 
Water and organic matter 
3-14 
2-87 
99-90 
100-02 
(1) Country near lode, No. 3 adit, Empire City Claim. 
(2) Schistose greywacke, No. 4 adit, Empire City Claim. 
In the neighbourhood of the lode the country is more or less crushed 
and sheeted, and where unweathered contains numerous veinlets of calcite. 
The ore consists of banded, oxidized, and vuggy quartz containing gold, 
