Bisbee daily review., 1918-05-05
STRIKE ON PENTLAND GROUP ADDS TO HOPE
 OF MINES IN YAVAPAI

MAYER, AriZ., May 4.-Ten feet oi shipping ore has been encountered in
 the west crosscut at the 500-foot leye
 in the Arizona Copper mine, locally known as the Pentland mine This l sounds like a simple statement but ir
 reality it is without doubt the most important ore discovery made in the
 Mayer district for many a day. The
 Arizona Copper & Mining corporation
 was started locally about year ago
 on a group of mining claims owned by
 E. B. Pentland, of this place. The
 first stock was subscribed for in May er.- It was later financed in the east
 to the extent of about s100,000.
 The company has done actual min ing. A Compartment shaft was put down to the 500-foOt level which depth it reached last week. Prosecuting was commenced east and west, the ex-
 pectation being that ore would be
 found on each side of the shaft. The first vein to be encountered came in
 about 30 feet west of the shaft. The
 vein so far has been cut through for
 ten feet showing an excellent grade
 of smelling ore in copper and silver.
 There is reason to believe that the vein will be much wider.
 Fine Grain Ores
 The ore occurs in the schist, the copper values being in the form of chalcopyrite which is closely dissem- mated in the schist. Mining men who have examined the strike are particu- larly well pleased with the fineness of the grain of the ore.
 A meeting of the directors of the company has been called to consider whether to continue the shaft 800 feet deeper. to the 1.00O-foot level, or to explore the present 5O0-foot level first
 No strike of ore in the Mayer dis trict has had such a lifting" effect for many months as this Pentland strike. Considerable of the stock is held locally and everybody is holding onto it at double the price of last week before the strike was made. They are expecting to hear of some thing sensational before the width of the vein is fully determined. Then. the mine is so close to Mayer, about two miles northwest, that it means a payroll that will come directly to the town. Most of the miners live in Mayer and go back and forth to work each day.
 Opens New District
 Outside of the worth of the strike to the stockholders of the company and it's effect on the business of May CT. it means a great deal to the dis trict for the mine is located in an en- tirely new camp. off from the Blue Bell and Binghampton strikes. The mine adjoins the old Blackberry mine on the north and is about one mile south of the old Boggs mine. The ore system runs parallel to the Blue Bell belt, about one mile west and it can be easily traced northward through the Iron Queen. Boggs, Swindler, Lone Pine and the property that has just been taken over by the Humboldt Con solidated Copper company. No prop critics have been developed to the south of the Pentland mine, to any great extent although the ground is all staked for several miles in that direction.
 The Pentland strike has again prov en up the Yavapai schist. The depth of the shaft, 800 feet, is sufficient to find permanent ore bodies as has been proven in the Blue Bell, Binghampton and other deep mines of the district. Another vein of ore is known to exist east of the shaft. and it is expected to be encountered at any time.
 This mine undoubtedly has great future. It is we'll managed, and re- suits have come just about as planned at the beginning of things a year ago. There need be no experiments either in the mining of the ore or in the mill ing for there are now in the Mayer district a number of successes on the same class of ore. There is as yet no talk of the company putting up its own mill at the mine. The most i'm portant thing, in the planning by the is to find a mine" first which is considered good business.
 Custom Ore Plant
 Mayer is soon to have a custom ore plant The Mayer Ore Purchasing has leased the old Gray Ea gle mill a mile below town and in a few days will be ready to buy custom ore. The capacity will be about 100 tons for the oil Notation process and SO tons coarse concentration. Later on. the company will be ready to han dle oxidized copper ore in the leach ing department The mill is in charge of H. A. Wagner. who was the original inventor of the electrolitic process for which the mill was built The whole plant is now under lease to the Mayer Ore Purchasing company
 A custom mill has been greatly needed in the Mayer district. Any sized ore shipment will be handled, from a carload to a sack. It will be possible for the small mine owner to find an outlet for his ore in small lots.
 The company also acts as purchas- ing agent for ores which will be sam pied and shipped to the outside reduc ticn works. A complete sampling de- partment has been established in which to make tests on ores to deter mine the best methods for treatment and there is also a custom assay of- flee at the plant. The mill will start off with plenty of ore for steady run