MINING NEWS.

Auckland Star, Volume LXX, Issue 24, 30 January 1939, Page 4

MINING NEWS.

MOUNT LYELL OUTPUT. COMPARISON" OF QUARTERS. Tn the last quarter of 1938 Mount Lyell Mining and Railway Company, Ltd.. treated 272.926 tons of ore in the mill, cathode copper produced in the refinery for th<» period being 3068 tons. A slight reduction in production compared with that of the preceding quarter would be accounted for by the intervention of the holiday period in the last quarter of the year. It is interesting to note, however, that the throughput of ore shows an increase of ."2.000 tons compared with that of the corresponding quarter of 1037, while production of cathode copper was slightly higher than that of the 1937 quarter. This is a reflection of the company'e policy of treating larger tonnages to compensate for the lower grade of ore, which, as the reserves of the North Lyell mine approach exhaustion, is being drawn increasingly from the "West I-yell open-cuts. In the following table results for the quarter ended December 31, the first af tlic> current financial year, are compared with those of the preceding quarter and of the corresponding period of 1937 :— Dec. 31, Sep. 30, Dee. 31. 1f(37. 1938. 1935. Tons. Tons. Tons. Ore treated by mill 220.923 2.54/I7R 272 92t> r«nc. produced . . 11,481 13.992 13,317 North XI t. I.yell ore smelted .. 1.573 2.4R9 1.4R2 (Nine, smelted . . 10,318 16,108 10.041 Total ore, etc., smelted 11,891 18,577 11,523 Blister copper produced 2.444 4,019 2,469 Contents— Cupper tons .. 2.42S 3,992 2.453 Silver, oz 15.631 21.298 11.514 Gold, or 1,236 2,542 1,536 Cathode copper produced, tons 2.926 3,314 3,068 YIELDS OF COMPANIES. Argo (West Coast). —340» from 10,000 yards in 116 hours. KUdare Consolidated (Otago).—7Boz 16dwt la 13 Mref*s five ltaye4* *,' -^™- Mossy Creek ?(Wfc#t Coast) lOffffi from 7286 yards in 127 hours. Nemona (West Coaet). —360s from 11,800 yds In 118 hours. New River (West Coaet). —370 a fram 9000 yards in 125 hours. White's Electric (West Coast). —360 i from 6750 yards in 121 hours. Clutha River.—ll7oz, 139 hours. Gillespie'e.—iooa 13dwt, 239 hours, 30,000 yards.