MIES AND METALS

Evening Star, Issue 23492, 5 February 1940, Page 9

MIES AND METALS

MftUNT MORGAN PLANT IMPORTANT EXTENSIONS PLANNED Considerable interest attaches to the notable plant extensions which have been put into operation by Mount Morgan Limited, states the January issue of the ' Queensland Government Mining Journal.' The new treatment methods which have been adopted to mine the ore reserves profitably are the outcome of careful preparatory work, and the results have already proved eminently satisfactory. Sulphide mill plant extensions, comprising a sft 6in Symons cotie crusher, complete - with belt conveyors, screens, etc.; a 12,000-ton fine ore storage; two standard sft 6in by lift ball mills with classifiers; and a 1-t-celJ mineral separation flotation machine have been completed and put into operation. The result has been an increase in mill through put to 10,000 tons a week. The desliming circuit and retreatmeut of sulphide tailings by direct cyanidation at the oxide mill was in fjill operatiou in May last with improved total gold recoveries. A 100 ft thickener is under construction to assist the settlement of the slimes. This thickener is of reinforced concrete with all steel work rubber-covered to prevent corrosion by other solutions. " These plant extensions are designed with the object of dispensing with the practice of shipping concentrates overseas for treatment." the journal adds. " This in itself will be a boon to the district, a* it will mean a bit: saving in cost. The future of the rninp, with its huge ore reserves, is bright." CALLS GN GOLD SHARES NEW AUSTRALIAN CONTROL. The approval of the Australian Common wealth Treasury, may have to be obtained in the future by gold mining companies specified by the Federal Government/before they make calls of capital. Recently all gold mining companies were exempted from the obligation under the investment control regulations to obtain permission to make calls, but power was taken on January 25 to enable this general exemption to be withdrawn from specified companies. B.H.P. BOYS MAGNESITE Eights to 190 acres of magnosite deposits near Kalgoorlie have been secured bv Broken Hill. Proprietary Company I/td. Magnetite is nsed for lining furnaces at Newcastle for steel production, and the company is anxious to obtain adequate supplies. The deposit is estimated to be about 1.000,000 tons.-and the monthly output is exjSeetecTto be about 1,000 tonsl' REPORTS AND RETURNS New River Dredge. The return of the New River Gold Dredge for the week ended on February 1 was SO ounces from 8,000 yards of "material treated in 105 hours' dredging time. Molyneux Dredge. For the period ended on January 26 the Molyneux Gold Dredging Company's dredge operated 178 hours and Recovered 187 ounces of gold. Gillespie's Beach. The Gillespie's Beach Gold Dredging Company Ltd. reports a wash-up for the week of 28oz Gdwt. The dredge worked 117 hours and treated 13,304 yards of material. Mossy Creek. The Mossy Creek return for the week was 330 z 2dwt from 6,160 yards. The dredge worked 118 hours. Big River. The report for the week ended Febru- I ary 1 of Big River Gold Mines Ltd. is as* follows: No. 5 Level.—North stope: Filling : south end. North end: Stone, 3ft wide. No. 0 Level.—South block: Stone. 4ft wide; length, 10ft south of the rise. Shaft: Sunk 6ft. Total, 102 ft. There were 33 tons of stone sent to the battery. Worksop Extended. The wash-up for the week ended February 1 of the Worksop Gold Dredging Company Ltd. was 250 z from 9,500 yards of material. The dredge worked U3J hours. SYDNEY STGGK EXCHANGE Press Association—By Telegraph—Coypright SYDNEY, February 3. The following were the sales this morning:— £ s. d.

GOTTDH, RUBBER, ETC. Press Association —By Telegraph—Coypright LONDON, February 3. Friday’s closing prices were as follows : Cotton: Spot, 8.29 d per lb: March, 7.88 d. Rubber: Para, 13d per lb; plantation smoked, 11-Jd. Turpentine, £2 14s 9d. •Linseed oil, £4O 10s. I"" , S

Commonwealth Bonds— 4 per dent., 1941 ... ... 101 11 3 4 per cent., 1961 ... ... 106 15 0 Bank of New Zealand ... 1 16 0 Associated News ... 0 17 6 Tooths ... 2 12 9 Broken Hill Proprietary ... 2 8 5 Colonial Sugar ... 50 17 6 David Jones ... 1 15 6 Mark Foy ... 0 16 9