MINING NEWS.

New Zealand Herald, Volume XLIV, Issue 13451, 30 May 1907, Page 3

MINING NEWS.

GRAND JUNCTION.

£6400 FROM 2856 TONS ORE.

J During the period ended May 18 the'Waihi (Grand Junction Gold Mining Company I crushed and treated 2856 tons of ore for a return of bullion valued at £6400. Last month, when 3442. tons of ore were treated for a return of £7955 12s 3d, constituted a record for any similar period of working, and it is explained that the reduced tonnage handled for the month under • review ' is due to the company being obliged to use 40-mesh screens instead of coarse mesh. When the tube mill is again put in order j the output will be increased. The present! crushing is the ninth from the , mine, '.and raises the value of the bullion in hand to £42,704 _0s 7d, as shown in the appended details: — ' '/.. : ' : '^:y . : : '■';■"■,.■■;.. October 1906, 1946 tons ... -...''.£2,248 00 ! November 3, . 1906 . > ... ... , ... 3,208 19 5 December"l, 1906. ; 2275 tons : '" ... 4.67 1 ; 6 5 December'l9, 1906;" 1768 tons ... ' 3,664.6 3 January 26. 1937, 2426 tons ... 7 6 February 28, 1907, 2407 tens ... 4,451 0 0 March.23. 1907, 2676 tons :.'; ... 5,373 810 April 20, 1907. 3442 tons ... .... 7.955 12 3 May 18, 1907, 2856 tons ..... ... 6,400 0 0 Total to date ~..... .... £42,704 0 7 r : —— ■ " KOMATA REEFS. • £3958 FR0M.2150 TONS. •" ; 'WTAlt' TO"-DATE, '£242,739..' """ TOTAL TO DATE, £242,739. I During uhe period ended May 18 the Komata Reefs Gold Mining Company crushed .aid treated 2150 tons of ore for a' yield of bullion valued at £3958. This return shows an improvement in the grade [of ore compared : with the preceding four I months, when 2260 tons yielded bullion, valued at £3526. The total amount won from' the mine to. date is £242,739, us shown in the following table of details : —

ITo December, 1900 ... ... .. £30,369 0 0 In 1901, 8670 tons .;. :':..: ... 11,092 0 0 In 1902, 12,260 tons V-;..'.... , ■ 27,635 0 0 [In 1903. 14,780 tons ... ... ... 37,157 0 0 In 1904, 16,900 tons ...... ... -34,430 0 0 In 1905 ... ... ... ... ... 43,136 0 0 In 1906, 20,490 ? tons ; ... : ".... , ... ;j 42,779 0 0 •""" •'.",': £226,048 0 0 Period endingJanuary 26. 1907. 1720 tons ... 2,755 0 0 February 28.' 1907.! 1920 tons.. 3,343 0 0 March 23, 1907. 2000 tons '■■'.'.. 3.104 0 0 April 20, 1907, 2260 tons ... 3,526 0 0 May 18, 1907, 2150 tons ... ... 3,958 0 0 Total to date ... .... £242,739 0 0 The following is the report on the development work carried out at the Komata Reefs mine for the three weeks ending j April 20:— ; 1 'No. 5 level: Drive north on No. 2 reef—Distance driven, 21ft; total, 108 ft 6in. The reef has been pinched for the greater part of this driving, but I it now appears to be making Again. i No. 4 level: Drive north on No. 1 reef from firafc crosscut Distance driven, lib? total, 90ft. I Tho average width - was 7ft. and the average value £1 Is. Drive north on No.- 1 reef, from I second crosscut— driven, Bft; total, 80ft. The average width was 18in and average value 15s. Drive south on No. I reef from second crosscut—Distance driven, 9ft; total, 36ft. The average width was 7ft and the average value £6 8s 7d. There has been a very good run of ore in this drive, but the face is at present poor. Drive north on No. 2 reef— Distance driven. 16ft; total, 457 ft. The reef has been pinched for this distance, but there are signs of the quart* making again. This drive is now about under the winze being sunk from No. 3 level. ' Winn? on No. 2 reef north— Distance sunk, 15ft; total, 35ft. The reef has been about 3ft wide and the value about 19s. No. 3 level: Drive north on No. 1 reef— tance driven, 21ft ; total, 226 ft. Tho average width was Bft and the average value £1 Is. The ground has been softer during the last few weeks. Drive north on No. 2 reef—Distance driven, sft; total. 319 ft. • The reef h.is been pinched and the ground extremely hard. Winze on No. 2 reef north (No. Distance sunk. 2ft; total, 40ft. The average width was 3ft and the value 13s 3d. Win**. on No. 2 reef north (No. -Distance sunt, 10ft; total, 47ft. The average width was 4ft and the value £1,55. Stoping 4 level : No. 1 reef, second block Ground sloped. -3 fathoms. The. average width of the reef is fift and the average value £2. No. Z reef, first, block—Ground, sloped, 134' fathoms. The average width-'.of the reef is 6ft and the average value £2.55. No. 3 level: No. 1 reef, second ~block—Ground sloped, 4 fathoms. The average width of the reef is sft.\and the overage value £2. i No. 1 reef, third block Ground stopped, 2 fathoms, i Tho average width of the reef is 7it and the vnlue 355. No. 2 reef, first block— Orciind stoped. 2 fathoms. The- average width of the reef was 3ft and the average value 355. No. 2 reef. second Ground stoned, 16 fathoms. The average width of the reef was 10ft."and the value £2. Smithy level: No. 1 reef, second .Week— Ground stoped, • 2 fathoms. The 'average width of the reef is sft and the average value 30;*. : , Batferv: All the -machinery; is now running satisfactorily. A new arrangement of nozzleu has been installed in the Pelton wheel,pit, ; and this will make a considerable saving in '■ power. ,

KIRIKIRI. . A telegram received from the mine manager yesterday was as follows: —" Brokenj down reef in' winze, gold showing freely." , The directors report that in order to test] the value of. the reef on which they are now sinking a winze, and also to have a check test on their new battery, they, sent a parcel of 251b selected ore to the Thames School of Mines, and have'just received the following result: —Assay value per ton: Gold 81oz 4dwt. and silver 41oz 17dwt, the value per ton being £328 19s -Bd. The; yield of melted bullion, from the 251b of ( selected stone was loz sdwt 6gr, of the value of £2 12s 7d per oz. The directors; intend, when the winze is sunk a depth of 50ft to open out on the reef. Gold has been carried down the whole depth of the winze on floor and both hides, and is still showing. • The manager reports, under date May 24, j as follows :—The winze on Horseshoe* reef has been sunk a further distance of Bft for the < week, making a total of 44ffc. The size of the reef is 18in thick. When breaking down 201b of picked stone were selected, and gold is left showing on both sides and bottom of the winze.- Gold . was freely seen through the general quartz. There are 18 to 20 tons of quartz from the winze in the hoppers, which will yield very well. Will start to crush about the middle of next .•week. .. ........ , ... • • . ■ » * ,

HARDY'S MINES, LTD. The Hardy's Mines, Ltd., which Holds an area of 517, acres, last year secured the > services of Mr. F. C. Brown to examine [ the property and advise on the' develop- . ment of the mine. The difficulty appear- • ed to be that the company's reduction : plant was not designed for the class of ore J obtained at the lowest level in the mine, i and that a considerable percentage was lost before the concentrates reached the smelter, j It is now reported that Mr. Brown re- • quested that a winze be sunk at this point - an far as water would permit, .and, taking ) advantage of dry weather, at lift below . these workings ore was obtained worth i£3 12s per ton. Mr. Brown submitted a . proposal to make a 3800 ft tunnel. to give , backs.of 650 ft, and which would probably > also cut at this level the Silver King and; ' 'other known reefs, or a shorter tunnel of ! 1990 ft, giving 2f>ft backs. This latter > proposal the company, after reconstruction • •and subscription of the required amount, '. .contemplate undertaking. . Mr. \ Brown 'states that this will be in the nature of ' ! permanent, work, and will eventually lead j ; to the low levels of both the Premier and: , New Find reefs, and he believes that as soon as sufficient ore is found there will be j Jno difficulty whatsoever in dealing with the ore on the spot. . . | RHODESIAN OUTPUI. I The British South Africa Company announces the following mineral output for the month of March:—Southern Rhodesia: [Gold, 46 ? 887oz; silver, ll,321oz: lead, 53 tons; coal, 10,374 tons; copper, nine tons; chrome ore, 2264 tons; wolframite, one ton ; diamonds exported September, 1906, to March, 1807, amounted to 1673 carats; ! other precious stones, 9907 carats. _ North-1 western Rhodesia: Broken Hill mine, 580j tons ore, assaying 50 per cent, zinc, were exported during the same month. DUNEDIN STOCK EXCHANGE. [by telegraph.—press association.] Dukedik, Wednesday. The following Stock Exchange sales are , recorded :—Rise and Shine, 15s 3d. MINE MANAGERS' REPORTS. New Una (May 27): Fair progress has been made during the week in advancing.the main crosscut to intersect the Dayspring, footwalj, and Duke's reefs. The silica and mineral veins are still in existence, but are of a more oxidised nature. The drive, has been advanced Bft, making a total of 374 ft from the entrance. Comstock United (May 27): We have stripped the lode for about 24ft, and by taking ,4ft or sft of the" hard quart* progress is slow. I had-some stone tried worth lis per ton assay. This was » sample of the few feet we are stripping,- and probably the best of the. ore is on the hangingwall portion of the. reef, which may.be- 6ft or 7ft inside the wall we have stripped to. so the reef will be from 10ft to 12ft wide where we are now. I am edging off towards the hangingwall of the reef, as 1 think the best values are in this section. ■~....;