Arizona republican., 1909-08-06
SOME RARE MINERALS
 FOUND IN ARIZONA J. c. GOODWIN BACK FROM A TRIP NORTH
  Predicts Some Paying Mines in the Black Hill Country.

James c. Goodwin returned night before last from an extensive trip iT the vicinity of Prescott and the Black Hills, His purpose there was to make a report on some valuable claims i Upon his return to Prescott in ar | interview with the Journal Miner | Mir. Goodwin gave out some very in- teresting information in repard to the I discovery on his trip of cobalt and | nickel, minerals that are very rare in 1 this section.
 MT. Goodwin is quoted by the Pres colt paper as follows:
 | James C. Goodwin, mining man. who has just returned from the Black Hills mining district, in speaking of his trip. said:
 Tt is a very interesting district | There are a great many conditions there that are somewhat different from other districts in the territory. l think that the prospects will be that some great mines will be opened up along Grape Vine creek, that will produce cobalt, nickel and copper. On the Red Bluff group of claims, that has been bonded by the La Gracia Gold and Copper Mining company. there is q vein of ore with the gangue that is about two feet wide at the depth of twelve feet This ore Is an arsenical, carrying cobalt, nickel and copper. according to an assay re- ceived the other day from a tes made at Jerome. and the ore runs s per cent cobalt, one one-half per cent nickel and seven and one half to be smaltite. This cobalt and nickel ore is the first nickel ore that has ever been reported in Arizona. Some time ago some ore was sent to the University that was said to be cobalt bloom, as per report made by Prof. W. P Blake, but the locality was not ascertained. At the present time there is no nickel and cobalt ore produced in the United States. Nickel ores have been found in the La Mott mines in Missouri, and the Gap mine in Pennsylvania. these two mines having produced considerable cobalt and nickel. Nickel ore has been discover ed in Oregon, but up to the present time very little ore has been produced. The great nickel mines of the world today are located in Sudbury. Canada
 
 the South Pacific The form of the copper ores in the Sudbury mines are magnetic sulphides or pyrrhotites. These ores are found below iron gos- san crOppings and in basic rocks. The conditions in the district that have just examined. are very similar to the district in which nickel ores are found in Canada. There are a great many iron croppings which in part are magnetic, other parts are limonite and there is no doubt that there will be encountered magnetic sulphides at depth. carrying nickel, copper and CO., bait. The pyrrhotites ores of Canada carry from one to five per cent nickel and less amount of copper and very little cobalt. The formation in the Black Hills district and where these iron groupings occur. is serpentine or magnesium talcO schist. The property owned by Sweeney and Thorn and the La Gracia Gold and Copper Mining company, as well as other companies situated and lying along this schist belt, are located favorably, and the conditions are good to make prom inent mines. While the iron outcrop- pings is not such an iron as you would expect to encounter rich de- posits of reformed copper ores, but is of such a character being very wide, and running for a great distance. in which you would expect to find low grade ores. that could be worked at a profit. Cobalt is used in painting on porcelain, coloring glass and for many other things It is sold as cobalt oxide, and is quoted at about $2.50 per pound. Nickel is quoted at from 40 to 50 cents. I think there are many other rare minerals in Arizona that are passed over. This district will have the unique distinction of being the only district in Arizona that contains nickel and cobalt to speak of"