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Show DIVIDE "DISTRICT 13 SUB ACTIVITY Numerous Properties Are Responding to Efforts of Developing Forces. Ore shipments Croin the Tonopah Divide mine to the Gold field Consolidated ndll have heen Increased to ::uiJ tons weekly, says the .Mining and Scientilic Press. It averages ?,';u per ton. and settlement is made on a basis of per cent extraction. extrac-tion. A. 1. D'Arcy, the consulting engineer, engi-neer, piaccs an estinuitc on the on; dump ar. the shiift at ijuutj tons, assaying This is has.-d on continuous, sampling during mining. Most of tills ore is from the ltir.-l'oot level, and contains molybdite, the yellow oxide of molybdenum. Owing to its excessie cyanide, consumption this ore is not being be-ing sent to the. mill. The molylMenum metal in the ore on and below the 2ti.j-foot 2ti.j-foot level is powcllite. a calcium tnolyh-date, tnolyh-date, and is not soluble In cyanide or any alkaline solution. Kxeept for rich seams or pockets, the amount of the metal is small, and no effort has been made ,to effect its recovery. If it is found on deeper levels in quantity and in sulphide form, a by-product recovery can be made by flotation. Drifts on the three main levels continue in good ore, and Mr. D'Arcy reports greater uniformity of value on the deepest or HTu-foot level than on the levels ahuve. Ore now being sent to t he mill is t hat extracted in blocking the main ore budy by means of crosscuts and raises at lifty-foot intervals inter-vals at the '2'o and 370-foot levels. The main shaft is being sunk from the 370-foot 370-foot level, and for this work an auxiliary electric hoist is used. liock broken in linking is dumped from the bucket into cars at the 370-foot level and hois led in the cages. South of Die shaft 570 feet, the crosscut on the 25-foot level penetrated pene-trated what is known as the gold vein, from which high-grade gold ore was taken near the surface during the earlv period of activity at Goldlield. A drift'east on this vein has opened from two lo three feet of ore assaying $11.1 to S7j gold, and has reached a cross-fault where the face showed live feet of good ore. This vein has a trend due east, while that of the silver vein Is approximately southeast, and surveys point to a junction of the two within the Divide company's ground, near the southeast end -line. The gold vein dips north at an agle flatter than the silver vein, which is nearly upright, and a crosscut is to be driven to the gold vein on the 370-foot level. Old workings on the gold vein, at the outcrop, are nearly near-ly 100 feet above the collar of the main Divide shaft. In the Gold Zone property, adjoining the Divide on the southeast, a drift on the ?Pr-foot level followed the Divide vein to the joint end-line, where the face sampled ?11 per ton. The Gold Zone shaft is being sunk to reach the 500-foot point. The Brongher Divide, adjoining the Divide Di-vide on the northwest, has prospected the main vein for a considerable distance on its 170-foot level, corresponding, in elevation with the 2o'5-foot level of the Divide, but has found no pay ore. The shaft is now being" sunk another 200 feet. On the Tonopah Dividend, northwest of the Brougher Divide, crosscuts have been driven east and Vest to the two parallel lodes on the 300-foot level. The company has excellent equipment, has constructed a good rood to the property, and has a private telephone line to Tonopah. The Hasbrouck, in the southwestern part of the district, has produced a considerable con-siderable quantity of shipping ore, and has some ore of good grade in the shaft workings, while the tunnel is said to have cut the main vein. The Fast Divide, east of the Gold Zone, is sinking with good equipment. The shaft is down 150 feet and will be continued con-tinued to 300 feet before lateral work is started. |