Arizona silver belt., 1883-03-03
THE TAKOMA COP
 PER MINE.
An Unquestionahle Fissure, With Phenomina| Masses of Cop
 per Glance.

The mining editor of the SILVER
 BELT, with Mir. J. J. Williams and Superintendent Devereux, visited the mines of the Takoma Copper Co. on Monday of this week. The stories told in Globe of the richness and quantity of the ore are fully endorsed by the facts. The property embraces the Big Johnnie and o O'Dougherty orig inally discovered by Ramboz and Hope. It is two and half miles from Globe, and is reached by wagon road of easy grade. The vein follows the general direction of the other veins in the District-N. E, anG s. w. Each claim is 150O feet ldng, so that the continuous length on the vein is 5000 feet. It is an undoubted Assure, as Is proven by the fact that it is clear and distinct, with perfectly defined walls in the lower workings of the mine, where there is a contact '--syenite being the hanging wall formation and quartzite the foot wall--and just as distinct where it cuts up through the quartzite croppings at the upper work ings, 45O feet higher. Another proof is, that there has been motion in the walls, after the formation of the vein, and the deposition of the. gouge; for they show successive smooth parallel striations; still another proof is found in the fact that tranverse section of the lower shaft, at 30 feet from the surface, ,'shows that the syenite hang ing wall flares to the south, and the quartzite comes in, while the latter constitutes the wall on the other side. Farther up the hill on the hanging wall side, the syenite crops up, leaving triangular mass of quartzite between the vein, the syenite and the surface; still another proof-or at least so con- sidered by practical miners--is the fact that in the lower shaft at a depth of 200 feet, no water was found in the cross-cut till the men drilled through the wall and touched the vein; still another is found in the fact that in all the workings glance ore is found, either in masses or in uneven nodules, the latter being so close together in some of the ore as to scarcely leave room for the specks of carbonate, and still another is that the vein is strong, even and continuous, and directly in the trend of the mineral belt in which the copper deposits of Globe occur. The workings consist of the Big John ny shaft, 200 feet deep, with levels and cross-euts at one hundred, one hund- red and fifty and two hundred feet. The cross-cuts were run to tap a vein lying to the south of the main one and parallel with it. This vein has inn proved as depth has been attained, ,and is capable of yielding large amount of rich, self fluxing ore. All the work ings here, except of course the cross cuts, are in ore. What is called the "lower tunnel is the second opening going N. E. and extends into the hill 250 feet, where it connects with a winze reaching up 75 feet to the "open cut tunnel.' In the first tunnel very rich red oxide and mottled glance were discovered, but stopes have not yet been started. Nowheres in the mine do the walls show better or the vein more thoroughly preserve its distinct i've character. Through this tunnel tramway is laid, and all the ore taken out in the workings above passes over it to gravity road, 470 feet long, rum ming down to the chutes at which the teams load. An open cut 132 feet long reaches to the O'Dougherty shaft, where the N. E, line. of the Big John- nie occurs. From he-.point where this open cut starts at the hill side to the Takoma shaft. 400 fectidistant, are probably the richest deposits of copper glance in the world; appearing in places, in compact body, four feet wide, and averaging '50 per cent. in copper. In one case IS inches reached to 65 per cent. Some of the work
 done, notably in the Higgins shaft, started in almost barren matter, and in few feet ran into this glance ore. Wherever this metal has been removed in the cuts and stopes, it appears in the bottom, so that its downward con-
 tinuance is not matter of guess or
 probability, it is an established fact
 After a careful survey of the ground
 we are satisfied that the extension oi
 the lower tunnel to the Takoma shaft
 would open up such body of glance
 orc that the company's shelter, pushed
 to its utmost capacity, could not use il
 up for good many months. The dis
 play of ore within the points given is
 certainly phenomenal At the N. E