Mineral resources . suspended by the company, and the mineleased to a tributing party. The shaft at the Canbelego Copper Mine was 300 feet deep at the closeof 1910. 155 tons of ore won were valued at £1,132. At the close of the following year the Henry shaft was 727 feet deep-With increasing depth the zinc-blende in this lode was observed to bepresent in increasingly proportional amounts, whereas in the upper sulphidelevels, both blende and galena were present, approximately, in equal the Mount Boppy Copper Mine 499 tons of ore had been disposed of fora return of £1,816. The Canbele
Mineral resources . suspended by the company, and the mineleased to a tributing party. The shaft at the Canbelego Copper Mine was 300 feet deep at the closeof 1910. 155 tons of ore won were valued at £1,132. At the close of the following year the Henry shaft was 727 feet deep-With increasing depth the zinc-blende in this lode was observed to bepresent in increasingly proportional amounts, whereas in the upper sulphidelevels, both blende and galena were present, approximately, in equal the Mount Boppy Copper Mine 499 tons of ore had been disposed of fora return of £1,816. The Canbelego Copper Mine had yielded 17 tons ofcopper—nett value £647—from the treatment of 142 tons of ore. During the year 1912 the Mount Boppy Gold Mining Company pursuedthe usual developmental policy, nevertheless movements were hampered byscarcity of water. The chief interest during the year centred about the two-lowest levels north of the Henry shaft. At the close of 1911 the company * Annual Report, 1910, p. Wi ° CS 11 had found a large body of ore at the 600-feet level, and at the northernportion of the trough 1,125 tons of ore broken on thewestern side of thelode yielded 15 dwt. 12 gr. gold per ton. Henry shaft was sunk to a depth of 816 feet, and sinking has now- beendiscontinued until the lode at the 800-feet level has been proved by No. 6winze, which is now being sunk below No. 7 level.* The ore reserves on the 31st December, 1912, were estimated at 208,597tons by the management. The mill ran only 263 days during the year owing to drought 9-61 inches of rain fell in 1912, being a decrease of 10 inches as com-pared with the precipitation of the preceding year. Advantage was takenof the fact of the mine tank being empty to enlarge its holding capacity,and about 10,000 cubic yards of material were excavated. A considerable portion of the surface plant was remodelled and a newboiler added to the machinery. Another feature of the years work was the ere
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectminesandmineralresou
