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TIDBITS OF INFO- MICHIGANEMJ 9 15 1928
Quincy Strikes Extension of Ore on 88 Level
Quincy, in the Michigan copper district, has cut the main vein, in the cross-cut, from the No. 6 Shaft, at the 88, or Bottom Level. The lode is described as big, and very rich in copper, the same as in the level above.
The vein was cut through horizontally, and found to be 13 ft. thick, which would give it a width of 7 to 8 ft. Drifting has not yet been started. The continuation of the rich ore found in the 87 Level, and the unusual width of the lode, are considered most encouraging.
Meanwhile, work of extending the 87 Level is proceeding, with no diminution in copper content. The old wooden shafthouse at No. 8, is being taken down, and will be replaced with the steel shafthouse from No. 7. Hoisting capacity at No. 6 is being increased.
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Fire-Mining Methods Used in Michigan 1,000 Years Ago
AN ANCIENT copper mine, 80 ft. long and hidden 30 ft. or more, beneath a ledge of copper-bearing rock, has been unearthed near Hay Bay, on the southern edge of Isle Royale, by archaeologists exploring the island, according to a recent Associated Press dispatch to the Salt Lake Tribune. Dr. George West, Milwaukee scientist with the expedition, advanced the theory that some early tribe of Indians, perhaps a thousand years ago, dug from the copper veins, the ore that was precious to them for tokens, for lance heads, arrow points, and ornaments.
This new copper find, coupled with the recent discovery of a cave of skulls a few miles distant, was regarded of significance, in the search for remains revealing the nature and culture of early North American inhabitants. Exploration of the mine led the scientists to believe the work was done by a people, not far advanced beyond the Neolithic stage. They found no evidence supporting the theory of some that Norsemen peopled this Lake Superior isle in relatively recent times.
The mine was excavated, the archaeologists said, by the fire and water methods. Fires were built close to the copper-bearing rock, and then water was thrown against it. The miners then plied their hammer stones against the disintegrated rock, and cracked it open to extract the copper it contained.
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MICHIGAN MINING NEWS MINING & SCIENTIFIC PRESS 5 14 1921MINING AND SCIENTIFIC PRESS May 14, 1921
MICHIGAN
Houghton.—The first shipment of copper by boat for the season, left Houghton, the last week in April. It consisted of 300,000 lb. of Calumet & Hecla copper, loaded at the company’s smelter, at Hubbell, for domestic consumers in the East. Within a few days, 1,200,000 lb. of Calumet & Hecla copper for Germany, will leave here by boat. On May 15, a similar shipment will go forward, which will clean up all German business at present on the books, amounting to a total of 4,000,000 lb.
The company continues to sell considerable copper for domestic use. An order for 800,000 lb., for an Illinois customer, has just been filled. Domestic consumers are evincing more interest In the market, apparently realizing that the days of cheap copper are numbered. The Quincy Mining Co. has had a good customer in the Dollar Bay wire mill in this district, which has taken as high as a million pounds of Quincy copper, per month. Quincy now is working only one furnace, part capacity, so recent sales have helped reduce the company’s metal surplus.
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Mohawk and Wolverine wages are back on a pre-war basis, but all other costs continue abnormally high. There has been no decrease in freight-rates, which add greatly to the expense of transporting ore and coal; coal Is more than 100% higher than before the War [1], costing $7.50 per ton here in cars, as compared with the previous price of $3; powder is still high, and drill-steel is only 2c, per pound cheaper, than the highest price paid during the War.
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Little timbering Is being done in the Calumet & Hecla shafts. Some timbering is necessary in the Red Jacket shaft, which is in use a part of each day. No, 5 shaft, Tamarack, also is being kept in repair, for this shaft is used for bailing purposes. No. 8, Tamarack, is in commission for pumping. Four machines are being used in development work on the Kearsarge lode, encountered in the east cross-cut, from the 81st level of the Red Jacket shaft, and the ‘rock’ taken out is being brought to the haulage way, and hoisted to surface.
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The Victoria Mine in Ontonagon County has shut down to await a more favorable turn in the metal market. Only 70 men have been employed of late, and in the last few weeks, they have been engaged in cleaning the stopes of ore accumulated in mining operations. Victoria closed the year 1920, with a surplus of 1,180,955 lb. of copper, valued in the annual report at $162,544, or better than 13c. per pound.
Ground on a par with that in the other levels, is being opened in the new drifts on the 6th level of the Seneca property. Drifting north is under way on the 3rd and 5th levels. All of these openings are in ground of good quality. Stoping is still being done on the 4th level, and the character of the ‘rock’ being opened is encouraging. Drifting on this level has been stopped temporarily until stoping is completed. Seneca has made another slight reduction in wages.
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