The Florence tribune., 1901-05-04
THE UNITED vERDE's- RIVAL One of the Properties Whics Make 4
 mas Copper Reputation.

located in gulch or ravine " drains toward the east. On the n side of this gulcli is porphyry fo ton, wherein there has been a co; erable amount of prospecting in st sas deep as 800 feet, without as yet ing much ore of value. On the S side ofsthe gulch. is a great lime ing which overlays vast copper l, in nearly horizontal position, dipping slightly to the southeast. Copper Queen. Calumet and groups are embraced iu this min belt. The ore bodies comprise vas posits of copper carbonates, includ much of the maiachites and azui and black oxides; and as the work proceed sontheastward they disc immense bodies of copper sulphides cluding pyrites and chalcocites. T is no regularity about the relative tion of the two kinds of ore dept specified. In the Copper Queen bonate ledge overlays sulphide tum in one place and the order is versed in others, the two kinds usu being separated by a horse or rol lime. But, in general, the sulph appear to preponderate as the diI the lodges are followed to the so east. This theory is supported by cent developments in the Calu and Arizona group.
 The Copper Queen is worked thro three shafts-the Czar, Holbrook Spray. They range in depth iron to $50 feet and are all connected ou 200, 300, 400 and 5oO-foot levels. { underground work includes appr mately eighty miles of drifts and CT cuts wherin car tracks are laid. method pursued here is to stope O face of ore from thirty to fifty ] high, timber up with square sets fill in partly with waste. 0n som, the stopes, on the 200 level, is a t perature of probably 120 to 130 degr which is produced by the rapid pro of oxidizafion that goes on as ground is being broken. In these o heated chambers the air is good an ample volume, but all effort to that section has been without succ The ground worked through is he inclined to swelling, making timbe of the most thorough character ne sary. The new Spray shafts equiI with modern hoisting engines and up-to-date steel gallows-frame. present no air drills are in use in Copper Queen, the structure of ledge matter being rather loose easily broken. S. ". Clawson is [ l superintendent.
 There are five furnaces in operati, the Copper Queen smelter-four of old round type and one of the Nj ell square type. The five are ST ing about 500 tons of ore per tive four hours. There are ourcopper verters in operation and a fifth soon be ready for use. The bullion duced contains some gold and s with the copper. All ores above 400 level were oxidized, carrying per carbonates, but in some of newer workings at 800 to 700 feet they get into copper and iron phide, with about twenty-four cent of silica. The carbonstes ( as high as twenty-tw per cent alu um, whicl. goes out in the slag. sulphides and oxidized ores are II in the charge about half. The sla hauled away by a small locom and the molten material is har from the furnace discharge to con CTS by an electric crane.
 The two fues, each 500 fest
 eight and ten feet in diameter, from the furnaces up the mountain at about forty-five degrees eley andsare constructed of iron. The herein gathered runs about eigh cent copper It is mixed with pl ized ore oxides, briquetted an turned to the shelter.
 In making up the charge for tn naees the sulphides are roasted, largely desulphurized by Do roasters before they are mixed
 the carbonates. The product c Copper Queen shelter is now run at the rate of about 3. 300, ,000 poul bullion per month. James Wo superintendent of the smelter.
 The same parties who contre Copper Queen are building a ra
 from Bisbee 100 miles southward
 Sonora, Mexico, to their copper
 and shelter at Nacosari, which
 been operating about eight m
 Track laying ou the new road
 progress, ten miles having beer
 pleted.
 Judge-Yon are charged with