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Treatment And Shipment Of Gold Ores In The Boulder Batholith Mining Districts Of Montana - Carl J. Trauennan, Mining Engineer, Batte, Montana, By Frederick 0. Gilbert, Metallurgical r * < The Boulder batholith which lies between Helena and Billon over 100 mile« north to south; and Phillipeburg and Radersburg, over 75 miles east to west, includes 60 mining districts which have produced $275,000,000 in gold, silver, lead, copper and «ne, not including Butte, which is credited with a of $3,000,000,000 mostly fro m copper ores. At the present time there considerable activity In many of the gold mining districts and it be of Interest to draw at o-f the methods treatment, particularly facilities for smelting Mr. George J. Young In his book The Working of Unotratl fied Deposits" «ays "The major limiting condition upon working a deposit Is the relation between realisation value of ths ore mineral mined and the cost of production.*' In a may tent'.on to some of ore the the or recent Issue of the Mod us# Mining Journal presented a table of mining average of Oil tana we costs based ou an $3.00 per tsn for a 16 # ton per day output. 4 foot vein and a In this article we will endeavor of the factors to discuss some of the "realisable value of the which Mr. Ysuag places first in his equatism ore «tec The geology of the ore de posits of the bstlMdlth is divided three periods, the andesite; granite ( InMndlng the splits) > and the mysllto. The gold ores occur fissure into the in contact deposits veins with pyrite, chal and ether aulphldee In copyrlte a quarts sod oEWto "gw«**« the surface the salphldos are oxidised; twdow are eon»« of mixed oxide amd sulphide; finally greater depths aalphldes alone. The varying character of the wall rock aad the different pro portions ot sulphide*, oxides and la the ere body Itself re wide range of chemical At at gangue aalt in a composition in the product min ed. On account of the variety and complexity of the ores, the metal tor extraction lurgical processes the gold differ widely from district and from In general gold of dWtrict to mine to mine, is recovered by 4 separate meth From the Records TOOLE COUNTY Toute CunnW Abate»»» Cn. nHKLBt. MONTANA B» assignments *. OY **^y K 'U-S-VÇ» ""£fT ln4 9. io, 1«. 17 SO 21-32-2 Boat. fl. Gordon D. McCutcheon to O. Ç. Wrlirhf 1-10 of 1% on 1840 acre» In i u 10 16 17, 20. 2V 8« 2 Beat- W- , O. W Myer» A H 8. JAmn .lame* Cain 1-4 #f lj% N*8K» 1» M C. KCroJer to Halvor 3-4 of 1% x*t • uw \ ft NWi. 7-37-oW. C. M. McCutchPon to T. D. No T m f® 1-15 of 1% on 4 ' 01 10, 11 1«, 17» 20-36-2 Wett. fl. „HÄ t T o°Th"c.mSrnl. Oo, Ucdu.^ rent.1, 8WMW4 ^ WiSEi SWlNKl, NEJ WWTOÄ« Xhfornte Go.. Reduce« rentMA to |l»k> B* r r&'ZT-vSft'-* «äs® jTOOMENTS AND »*£■*** , Maggie Ward va. R. Ç. Tnrrant *t : quiet» title Inplatntlff to 8WJ NWI, WJ8WJ 2S, «BJUBI, 8EJ. * !'J)-Ij ^ wt. „ , y». Potlatch Oil A Refining Co. a n 1'prktiiB and JoBêi vlll lo., Cancel» »greeinent aad quiet* title to the SEI 9-34-1 West. ,, Potlatch OH A Refining Co. ra. A II Perkin« and Jo«« O 1 Co Cancel» agreement and quleta title to ' 'aBTICLU Of INCORPORATION Sunburnt Mining A Povelopment Co. to The Public; Frank 8. Sraltk, Ralph It Newman and Lee ter Hnlter, In corporator«; ' ■ tock - rental agreement Jean Etchenlquo to Texa»P»rlfl Coal * OU Co., Reduce* rental, from *285.60 per annum to 8H2-W <> n NISEI 22-37-4 Went * Oil, AND GAS LEASE T'nlted State« to W T llllam Beahfoak W4NEI N4SWJ. NWJHEJ 19-36 2 W; S»8Ki*'l9- NWJNWJ, 29, B|8i, NWI NEJ. 36-85-2 Went »1» vg. liberty county LUtevW Coomtr Abatnu* (A CHESTER, MONTANA assignments er royalty Marie L. Howard to h.r. MrOnrdj 14% BJW|, 4-4-9 a NWNW 2T.-37 1% "Ç** MeCordy to C. KJWJ 4-4-6 acte« NW NE 20 W L f McCurdy » C. t> Brook »% H T*jr Jfakÿjy. to^Walton L Maw V%C**r * ***** L to Ale* L. Carl »on r> Brook ». _ 0 da or combinations of these, namely; on 1. Amalgamation 2. Cyanldlng , 2. Concentration (gravity or flotation). 4. Smelting 1. Amalgamation—The face ores, when not too high in Iron are often free-milling, I. e. the gold is extracted by mercury copper plates. Periodically the amalgam is retorted and the gold sent to the mint, of treatment is small and stamp mills, ball mills, plates, etc., may be Installed at a moderate cost where water is available, tunately change in the character of the ore body with depth will frequently reduce the percentage of recovery to a low figure, necessitating a change to other metallurgical methods. It M strongly advised that before making any considerable investment in amalgamation e quipment the ore be carefully tested in the laboratory for its "free milling" gold content. Also that enough ore be developed to Insure continuous operations for at least s year. (2)—Cyanldlng—Gold Is sol uble in potassium and sodium cyanide and some oxides are adaptable to this method. The simplest method of cyanldatlon is by coarse grinding and leach ing. Mill tailings usually re quire no further crushing. In any event to crush crude ore entails only a primary crusher plus either rolls or cone crusher. The crushed ore Is placed in tanks and cyanide solution either forced from the bottom or al lowed to percolate from the top. These plants do not cost much to build and very little to operate. However, In s great many cases It requires fine grind ing to put the mineral In such shape that cyanide will dissolve sur The cost Unfor GLACIER COUNTY By Uterler County AlMtimut Ou OUT BANK. MUM TAKA KF.I.KASK OF OIL A GAS LEASE Ut-Mo Oil sod Oat Trust to Wm. P. Vu uct et ux Lot 4 Sec. 15. Lot* 1 & 2 Sec. 22, S|8WJ. 14. NWJ, 2#. W|NE|, 8WJ, 23, N| AGREEMENT OF Oil, Harne» Butler 041 Co., to Alice Long Miller N| 24-34-6. ASSIGNMENTS OF ROYALTY K. C. Tarrant to Hebert Harris SWJ 18-34-6, 1-20%. $1. Same to Robert Harri» SWJ 18-34-6, 3-20%. 81. Same to L. Vera McReynolda 8WJ, 13-34-6. 3-20%. $1. Same to Sarah II. Bearatall 2-4% la 8WJ, 13-34-6. fl. Same to B. C. Bentaen X-5% la SWJ, 13-34-6. 81. Same to John C. K-oprlc* 1-5% in NW. 12-34-6. 81. Same to Oro V. «coveil 1-5% In 8W| 13-84-6. 81 Same to Mra. T. E. Koyea 110% In 8WJ 18-84-6. 81. Name to Alice B. Schaeffer 1-2% In NWJ 12-34-6. 81 Same to lamia J, O'Marr 1-2% in 8WJ 13-34-6. 81 Same to Robert P. Row» 1-4% In NWI 13-34-6. 81 Same to Allee ft. Schaeffer 1-2% 1» «WJ, 13-34-6. »L OIL AND GAS LEASE Leo Kennerly et ni to R. C. Tar rant Lota 5 & 6 In 27-34-0. Same 'to same Lota 7*8 34 6 81 Otl» Kennerly to »nine Lota 7 A S SJSWJ, 22, NWJ, 27-34-6. 81 ASSIGNMENTS OF ROYALTY Lon la B. O'Neil to D, Kränk 8tufft 11-48 of 1% In Ni L NEJ, 4, S|NW|, WiNB|, 8-35-5. 81. , Same to nine 1-16 of 1% In Lota l, 2. 3. 4, BIN I, 1-35-5. 81. , . _ B. C. Tarrant to O. Oliver 1-3 of 1% in NE» 12-84-6. 8L . Same to Vera WeUs 1-2 of 1% It) 25-84-6 • GAS LEASE 8W| 27 NWJ, 12 34 8. «1. _ „ _ Clark Harland to* Hannah U Hu lan 6J% ln SWJSWJ, 5. NWJNWJ 8-38-5. 8L PONDERA COUNTY CONRAD. MONTANA ASSIGNMENTS of royalty C. W. Litte* to John Kora 1-2 of 1% on truat property In Trnjt agree ment btween W. A. Bell, B. IS. Adam* anil E. B Emrlek. Book 7 Mlac. page U08. 8500. E) WJ, 4-4*9 a NWS* 26-37 Bll. H Heater to Chae. A. WIethoff I 1% F.J8RJ. 8BNE 7 NW8W 8-377 L. F. McCurdy to John J. Brudte 1-4% NWNW I4-8T-5. 8L , „ . L. F McCurdy to Martha L. Borben 3 - 4 % ajNW, n-n-6. » 1 - KKI «CASK OIL A GAS LEASE Tex«« Pacific Co»* * OM vwnk D» 1 > l„ Buhrins 3W«8 » NWNB 1V33-6, n. — Boui~OCft Bath OUI TH Minim* Distrh.ts • •••#• fe *0*0* i.iwa* A 5wC - »r*-r»«*fg O kvo * AA»»* •7 e H«i.rs* *v*« %rrt t o* A Fe«*r yksiv Hsu-ew* fVW'-JvtWi •*-# «Met* e.*. u*t V 0 m ►A ft o >«* figOTTC A**c**^ 5-vvf * 1 'Jt «Y lu*«** J* 1 •• J $ C-. 9 ! A»* if. Il^<r to *'** / : ipe*f i * « I i % *2 It. The investment in crushing and j Solution and agitation tanks with settling and filtering apparatus bring the initial plant cost to such s figure that fine grinding plants of under fifty tons per day capacity are not prdfiHUble Larger plant*, of course, require still greater development of the ore bodies. grinding equipment is high ion and agitation tanks with 8. Concentration—Heavy min erale like pyrite, galena, etc. may be separated from the Bght er qnarts and other gangue minerals, after cmnMmg ' and grinding, by jigs, tab lee etc., or ÉEEMip^H sulphite* nuv separated from the gangue rock» by the use of suitable reagents Both pro In flotation cells, cesses result in concentration of the valuable mineral In the of one ton of concentrates to 6 tons of crude ore up to one ton of sulphides to 100 tons of crude' ore, depending on the proportion of sulphide in the original ora. Recovery of the precious metal from the resulting product is usually acompllshed by smelting. It will be noted that the above citing la cious metal content of the ora in the form of matte lend or copper bullion using coal or coté to supply the heat for the melting (smelting) of the ore or to "reduce" the oxides to the mo statements apply to sulphides only; It is usually Impossible to concentrate oxide ores; first on account of the low speclfl# gravity of ozldo mineral#» secondly because oxides do not 'float-' 4. Smelling—-By meant the collecting of the pre taJlic state. As it is Ewcessary to get the proper combinations of silica, iron oxide and lime for a good "free-running" slag, the «melting process is not adapted to the output of an individual min« dis trict. It requires large plants and good railroad connections to the district which they serve. In addition > th« bullion has to be ''refined" precious metal must be separatiSl from the lead and copper. I "matt#,** 1. e. the Refineries are usually located near large industrial centres» distant fre» mining regions. Smelting Fleet» The Boulder batholith area ho* within Its bordera two ImH »melting plant* Bast Helena, 5 mile* east of Helena where ores are smelted with a lead boas, shipping bullion. to eastern points, and at Anaconda, 96 t B. EMRICK PETROLE UM GEOLOGIST P. O. BOX 486 Morr, ■ miles west of Butte, smelting to \ at Great Falls blister copper which is refined I at Great Falls, Montana. Dis tricts south of Butte also ship certain classes of ore to the Utah Valley Smelter 400 mile* to the south. Very few mining districts are eo favored with smelting facilities. Railroads The 60 mining districts within the -batholith are served by two main line«; east and weet trans continental railroads, the North ern Pacific Railway and the Mil Wank«« Railway. A north and south branch of the Great North ern Railway, a north and -south branch of the Union Pacific Rail way, (Oregon Short Line) and the 26 mile Butte, Anaconda and Pacific Railway connect the ratlojAnaconds Reduction Works with the above four railroad systems at Butte and Silver Bow. : The main line of the Northern 'pacific Railway enters the batho 'jju, area from the eastern side a t Logon. The North branch to Helena passes along the eastern Margin of the Radersburg, Indian Creek, Beaver Creek and MoClel Creek mining districto, through East Helena to Helena. In the vicinity of Helena arej Helena (Last Chance), Rimini/ and Ellieton district« Passldg south of the Ophir district the railroad continues to the main line weat at Garrison - From the south two branch Une* Join the main Une petween Logan and Butte; the easterly branch from Sappington reaches Norris and Mammoth and Pony districts on the north side of the Tobacco Root Mountains. Äkitehall 19 miles west of Sap ping I on another branch serves the Silver Star, Tidal Wave, Twin Bridge*, Sheridan, Alder, and Vir ginia City districts. In the vicinity of Butte both the Northern Pacific and the MU Inn At CLASSIFIED of the beat bargain* le be found today In Montana s Oil Fields Herein are listed and Districts. In this column ate found tibe items that escape the casual read er-oil royalties, leeoes sad equipment, mining cl ai m * and diversified investment op portunities. Advertising rate* 26c per insertion per Bne, counting sbe words to the fine. Four insertions for the price of three. Payment strictly In advance. « MISCELLANEOUS CONTOUR map« of WhltU.b Bear» Den. Fiat Coulee. Tinhorn. Roaerra. Utopia an* Orandview, 10c a >, Sui>ply Dev»artJnent, Montana Journal. Great Fall». Montana. Mil JAMK» «- MILLER CO., 207| Third Street, Tula«, Okla., will co<H*rato with raapouaibte partie« eartd fjj^ In flaaarin* project» of W*ber f «rder, __ It±* WANTED—1500 feet 10", 8" aad « eaalag I» Northern Montana 606, Mont*»» OR Journal 7-1A* WILL PAY CASH -Ml locamd Land wanke« pana near the old sold camp of Highland City and then through the Homestake section south of Butte. west of Butte the railroad tarns north through the Deer Lodge Valley on the eastern side of which are the Dry Cottonwood, Peterson Creek, and Emery Dis tricts; and Race Track on the west side. West of Garrison the railroad passes to the north of the Gold Creek, Pioneer, and Pikes Peak placers. At Drummond 72 miles west of Butte a branch line to the south passes through Maxville to the Phililpsbnrg district. The Great Northern Railway connecting Batte and Helena pas ses through the Basin. Boulder, Wickes, Prickly Pear, Corbin, Jefferson. Clancy, Warm Springe and ajacent districts. The branch lime from Boulder to Elkhorn has been discontinued From Helena north the Great ORB FREIGHT RATES 1. Marysville District (Great Northern Ry.) Ship from Silver City to Anaconda 11# miles per ton $1.78 Bast Helena* 22 mi lee value per ton $16 and under over 16 to $26 25 to 26 35 to 60 60 to 100 per ton $ 0 .«» l.»l 0,77 2.13 0.99 2.68 1.10 3.70 1.33 2.21 Average Per ton mite 0.34 0.019 0.048 2. Radersburg etc. Districts (Northern Pacific Ry.) ship from Winston .(second* E. Helena 181 mile* 25 mile* per ton per ton 11.47 1.90 0.60 2.14 0.68 2.36 0.90 3.70 1.01 , 2.93 1.13 2.25 0.86 0.017 0.034 (Continued on Pas» f) Toeton to Anaconda B Helena 10« mile* w satten per ton per tun f 1.22 1.90 . 0.90 2.14 1.01 2.8« 1.24 2.70 1.68 2.98 1.58 2.21 1.26 0.021 0.026 value per ton 310 and under over 10 to $15 1« to 26 >6 to 36 36 to 60 50 to 100 Average per ton mile ■ raw ! I Placer Gold How and where to get it The Montana Oil & Mining Journal offers a k-| publication of "SMALL-SCALE PLACER MINING METHODS by Charles P. Jackson and John B. Knaebel, informa tion circular published by the U. S. Bureau of Mines. 1 '' tt Tells h«w to find placer gold and ,how to save it Ê Profusely illustrated, with two maps showing placer gold areas in Montana and Idaho. Offered FREE with each yearly subscription. USB THE COUPON ! Montana OU Jk Mining Journal, Great Falls, Montana: i Enclosed find $2 for which please send Montana Oil A Mining Journal for one year, with "SMALL-SCALE PLAC ER MINING METHODS", offered as special premium m i Name - Street or Box . State Town . i ELECTRIC LIGHT AND FLAUT*. DIESE! AND POWER K 8. HAILEY Great Fall*. Montana W YTER GA80LI Box WILL 8BLL «wall porttoe my royalty on wellalte «0 Flat Coatee oU field. Write Owner. Care Montana OO Journal. 7-16-b ROYALTIES LANDOWNJMtS royalty on Milk Blvwr Fulton anUdfne. half wtte from well now drtain* at *W6 foot On* tp tritblc 969 fuel Writ» Box 408, Moaim OH JovrmX. Northern skirts the Scratch Gravel and Maryevlll districts The Oregon Short Line ran* south from Silver Bow 7 ratios west of Batte near which are Divide Crook, Vlpond, Moose Creek, Melrose. Rabbit, and Mc Carthy Mountain districts. Fur ther south and west are Bryant. Elkhorn, Hecla, and Polaris. The narrow gauge railroad from Di vide to Elkhorn Is still In ex istence bat does not operate. Farther south, west of Dillon are the Argenta, Blue Wing and Bannack districts. West of Anaconda, the George town district ores are brought in to Anaconda by tracks, the rail road to Southern Cross having been abandoned some rears ago. Or« Freight Rotes The following tabulation of freight rates covers the mont im portant shipping points to Ans conda, Bast Helena, and the Utah Valley smelters. GOLD PROSPECT FOR SALE Claim la |m 4 mlalttK dlatrtet ho* aolrrap at got* «« in tAree tt*m. Cm BEND A CONTRIBUTION TO TH» 8Ü* T "ÜRST BADGER