Arizona republican., 1901-08-17


 imprs gnated to some extent with
 quartz, streaked with sulphides at the 4 bottom. Assays of the ore taken from
 the upper part of the shaft run from
 to 10 per cent coppet. 1t IS the ln- Mention of the company to continue
 the shaft at depth of 100 feet, and then
 drift through the ore body. A large
 force of men it now at work.
 It is impossible for any person to look
 over this group, 70 walk over and
 among the masses uf tnihsralixeu rock and note that characteristic greenlsh appearance everywhere in evidence, without forming the positive conviction ! that underneath his feet lies hidden + an immense body of copper ore, greater perhaps, if the indications count for
 anything, than has ever yet been nn- covered. He cannot be brought to the 1 belief that this copper ore came from any other sourcei or direction than be- 1 low, nor that the visible copper in the ! ore was deposited upon the crest of the hill where the ore occurs, by the action i of any surface stream. But though he will conclude his inspection of the Mon tana Verdi with the firm conviction | that a little development work will
 demonstrate what appears now so evi- dent. It Is not until the visitor reaches | the san Jose group, the other property of the company, and makes his exam ination, that he feels warranted in say | ing that the company has mine the | character of whieh as such is assured. The San Jose group lies north-wester- I ly of the Montana Verdi, distance of
 about 55 miles, and is approximately | @ miles from the Gulf of California. | It is reached from Santa Ana on the Sonora railway, by an excellent wagon
 road Distance S5 miles. There is also good hard road from Tucson, l25 miles. The regular cost of frsight- ing from Santa Ana to the mine is SEQ in Me exican money, or $l0 In gold, per ton. The elevation of the property
 was not ascertalned exactly, but must be from two to three hundred feet low CT than the Montana Verdi. or from 1700 to 1900 feet above sea level. The group comprises 76 pertenencias. or about 190 acres. Like at the Montana Verdi good timber is within convenient distance, and water for operating d plant and for domestic purposes. is
 
 smeltlng purpos,is has been encounter ed in working the property. The sur face formation is entire.y different from that of ths Montana Verdi, being cha, acterized by well defined ledges having a general easterly and westerly trend. Across three of the largest or these ledges lying parallel and appar- ently constituting parts of single formation. 1t Is probably 300 feet. Nearly all Cf the work upon the group has been done upon ledge or ven which may be readily traced for over 1000 feet on the property, and crops boldly for a distance of l,4OO feet. Its average width at the surface Is eight feet, and it dips So or 70 degrees north, and has every appearance both above and below the surface, of true Assure vein. Upon this a shaft was sunk by the former owners of the property to a Gepth of l6l feet. At the 50-fcot level a station was cut on the northerly side of the shaft back to the center of the vein which had inclined away from the shaft until at this point only about one-ha!f of it was in vein matter prop CT. A wlnze was then sunk twenty four feet on this vein when water was struck in such quantities that 1t could not be handled with their double wind lass, and the winze was abandoned. drift or tunnel was then driven hori- zontally on the ledge from the station for a distance of over 120 f5et. In this drift the vein shows a width of from seven to nine feet. and is plainly trace able its entire length. The vein mat ter is quartz. feldspar and tale. The copper occurs in the form of cha!co- pyrite and bcnite. Assays of average samples across the drift, and for it's entire length shows the ore to be very uniform ir general and to run from four to eight ger cent in copper. Be low the 50-fopt level the vfin inclines entirely away from the shaft. and the formation of it's walls down to the bottom frou that point, as nearly as could be ascertained. is a soft granite. At the 15i-foot level cross cut was run to strike the vein. This part of the work could not be examined owing to ths fact that there was still about 4S f5et of water in the shaft; but the former owners stated that in this cross cut they passed through A fact os granite and 12 feet of mireralized vein matter when a great flow of water was encountered forcing them to abandon the work. The water appeared to come from regular Assure. probably the same that was entered by the winze above. They managed, how ever, to enter this Assure three feet and obtained some samples before they were driven out by the water. It was estimated that at this cross cut there must be from l2 to i5 feet of vein mat ter yet to cut before re aching the hang ing wall. The vein matter is more than double the width here that it Is in ths 50-foot tunnel above, and the quartz. feldspar and clay seams or tale are in the same relative position. hav- ing cn'y greatly increased in width. The samples upon being assayed were found to contain a greater percentage of copper than the orc in the drift above. The Assure on the surface does not contain a large percentage of cop per, bu; it is found in the form of sul- phid, almost altogether. At depth of thirty feet in the shaft the ore is much higher grade running from to [ per cent, and is quite uniform In char acter. The assays taken as whole, show that the ore in the Assure contain from three to five dollars to the ton in gold and silver values.