 | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |  | | Journal (issue) | | the Quincy mine ca. 1918. (Michigan Technological University Archives, Houghton) D e d ic ated to the Memory...Donald Pearce (1941-1989) The “Copper King” The MICHIGAN COPPER COUNTRY L. W i l s o n New Mexico Bureau...t a n l e y J. D y l II Seaman Mineral Museum Michigan Technological University % 1992 T h e M in e...crystal group, 13.6 cm, from an unknown mine in the Michigan Copper Country. Richard A. Kosnar collection;...wrote the classic work on the copper deposits of Michigan in 1929. Photo by Wendell E. Wilson. TENT . |  | | Journal (article/letter/editorial) | | TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net All mineral photography...and Mineralogy of the St. Louis Mine Houghton County, Michigan Twentieth in a series of articles on...crystals that are partially coated with a dusting of hematite. Instead of protruding into the amygdule, the...about 1.3 miles east of the village of Laurium, Michigan. This little-known locality is seldom visited...including quartz, pumpellyite-(Mg), epidote, calcite, hematite, prehnite, laumontite, and copper, that occur |  | | Report (issue) | | University University Michigan Townsend Drive Drive 1400Townsend 1400 Houghton, Houghton, Michigan Michigan49931-1...Peninsula, Michigan: Institute on Lake Superior Geology Proceedings, Keweenaw Peninsula, Michigan: Institute...Proceedings, 40th 40thAnnual AnnualMeeting, Meeting,Houghton, Houghton,Ml, 40, part part2, 2, 185 185p. p. MI,v...Lake Superior Superior Geology Peninsula, Michigan" Michigan" (Bornhorst (Bornhorst and others, 1983)... time, we considered that that "It is held at Michigan Technological presumptuous for for us us to put |  | | Journal (article/letter/editorial) | | Amygdaloidal Lode Houghton County, Michigan TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter...dumps along the Kearsarge copper-bearing amygdaloidal lode in Houghton County, Michigan. These unusual...northern part of the Lake Superior copper district in Houghton and Keweenaw counties. The copper-bearing Portage...section from Calumet to Mohawk shows the individual mines along the strike of the Kearsarge lode. The three...Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological University. He now |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Journal (article/letter/editorial) | | 2014 THE KEARSARGE Copper-bearing Amygdaloidal Lode Houghton and Keweenaw Counties, Michigan TOM ROSEMEYER...measuring 5.5 × 10.0 cm, attributed to the South Kearsarge mine. Author’s specimen, Terry Huizing photo....University] at 07:52 12 December 2014 T HE KEARSARGE LODE was one of seven blanket-type native copper...after the U.S.S. Kearsarge by a former naval officer who became an employee of the Calumet and Hecla Mining...the secondmost-productive lode discovered in the Michigan copper district. In the heyday of mining it became |  | | Journal (article/letter/editorial) | | Microcrystals In the Calumet and Hecla Conglomerate Houghton and Keweenaw Counties, Michigan TOM ROSEMEYER...ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net T Twenty-eighth in a series of...occur in the Calumet and Hecla Conglomerate in Houghton and Keweenaw counties, Michigan. Every summer...Collected at the Tamarack Jr. No. 1 mine, Houghton County, by Tom Rosemeyer, 11 August 2012. John A....native of Upper Michigan, is a graduate of Michigan Technological University in Houghton. He now spends |  | Cornwall, H.R., Runner, J.J., Stromquist, A.A., Swanson, R.W., White, W.S. (1949) Detailed geologic map of the recently active copper mines; Houghton and Keweenaw Counties, Michigan. Open-File Report Vol. 1949 (50-4) US Geological Survey doi:10.3133/ofr504 | Report (issue) | | copper nines, -..- roughton and Keweenaw Counties, Michigan H. R. Cornwall, J. J. Runner, A. A. Stromquist...Structure, 17 17 18 Distribution of copper > Kearsarge lode, 19 19 Stratigraphy, .. 19 Structure...Structure ... 21 Mineralogy.,*. 22 Page "' Kearsarge lode ...*»...................... 33 The Houghton conglomerate *>re body, Allouez No* 3* shaft.* *«* -.» » .*-*...exploration Index plan of principal workings, Kearsarge lode Geologic plan, Ahmeek mine, northeastern |  | | Journal (article/letter/editorial) | | Peninsula TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net T he Lake Superior...native of Upper Michigan, is a graduate of Michigan Technological University in Houghton. He now spends...Mass City, Ontonagon County. This was in October 1962 when I and two other Michigan Tech students were...In Keweenaw County most of the copper mines exploited the northern part of the Kearsarge lode and fissure...fissure veins. The Ojibway mine is on the Kearsarge lode and has produced some very nice copper-included |  | | Journal (article/letter/editorial) | | Michigan Mineralogy: A LOCALITY INDEX TOM MORRIS, JR. 4553 Shenandoah Allen Park, Michigan 48101 Tom...occurrences. These localities have been listed by county; and, strictly for convenience, the list has been...compiling this information was The Mineralogy of Michigan (Heinrich, 1976), which should be consulted by...locality labeling of Michigan specimens. It should be pointed out that the list of Michigan mineral localities...None theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful |  | | Journal (article/letter/editorial) | | MICROCLINE IN THE NATIVE COPPER DEPOSITS OF MICHIGAN Ina KrorN, Stanf ord, U ni.oersity, C al'iJorni...intensive mining activity in the copper country of Michigan, and detailed study of the native copper deposits... 5 Julien, A. A., Note on a feldspar from the Calumet Copper rr'ine: Annals N. Y. Acail. Sci., 12, 650-654...650-654 (1900). 643 IRA KLEIN on which the Calumet Mine was sunk, pointing out its adularialike habit...is aware of only two such localities outside of Michigan from which secondary feldspar is reported. A "pink |  | | Journal (article/letter/editorial) | | MICROMOUNTING AT THE KEWEENAW PENINSULA, MICHIGAN By PAUL B. MOORE and RICHARD M. 6EGER Depr. of Geolophysical...chloritic rock. Occurs also at Centennial Mine, Calumet; Iroquois Mine, and Cliff Mine, Cliff; Quincy Mine...Hancock, with chlorastrolite; Isle Royale Mines, Houghton; Seneca and Ahmeek Mines, Mohawk with epidote;...Keweenaw Point in soft amygdaloidal basalt; Kearsarge Mine, Kearsarge; occasionally at other places. L O T R...Royale Mines, Houghton; Hancock Mine, Hancock; Cliff Mine, Cliff; Centennial Mines, Calumet; Delaware Mine |  | | Journal (article/letter/editorial) | | native of Upper Michigan and a graduate of Michigan Technological University in Houghton. Since retiring...extensive logging operations, primarily in Keweenaw County, have increased the need for mine-run rock for...the Copper Range Company’s Champion mine in Houghton County. Downloaded by [Florida State University]...Copper District Figure 3. A generalized map of the Michigan copper district showing the location of new mineral...August 1968 by the closing of all Calumet & Hecla, Inc. mines in Houghton and Keweenaw counties because of |  | | Journal (article/letter/editorial) | | AMYGDULE MINERAL SERIES, RICHARD E. ZONING IN MICHIGAN STOIBER THE COPPER AND EDWARD PORTAGE DISTRICT...Superior flows of Keweenawanage outside of the Michigan copper district ......................... Mineralogyof...Portage Lake lava seriesof the KeweenawPeninsula,Michigan, three overlappingamygdulemineral zones--prehnite...was obtained extendsfrom Victoria,Ontonagon County,Michigan,northeast to the end of theKeweenaw Peninsula...ed. R•SUMI•. OF GEOLOGY AND MINERALOGY OF THE MICHIGAN COPPER DISTRICT GeneralGeology The mineralsand |  | | Journal (article/letter/editorial) | | APRIL 30, 1935 DIFFERENTIATION IN LAVAS OF THE MICHIGAN KEWEENAWAN * B Y T . M . BBO DEBICK (Bead before....................................... 510 The Kearsarge flow............................................square miles, and in one section on Keweenaw Point, Michigan, form a series with a minimum thickness of 15...deposits which occur in the series on Keweenaw Point, Michigan. The thousands of feet of diamond drilling and...the occurrence of the flows. Lane, while on the Michigan Geological Survey, carried on these studies with |  | | Journal (issue) | | at Silver Reef in southwestern Utah’s Washington County (figure 1) is a very unique occurrence. The high-grade...perfect bound for just: $35.00 Postage $5.00 in the USA; $23 for foreign. Excalibur Mineral Corp Tel: 434-964-0875...shipping. Figure 5: Native copper crystals from Michigan, size 7 cm. In the late 1800’s, two prominent...exceptional Kongsberg silver and Langban native lead, Michigan native copper, Freiberg argentopyrite, Leadhills...book filled with historical work involving Oxford County, describing and intertwining its minerals, miners |  | | Journal (article/letter/editorial) | | GEOI.OGIC M A P O F SOME PEGMATITIC LAVA FLOWS, MICHIGAN C O P P E R D I S T R I C T Downloaded from https://pubs...SERIES AND THE ORIGIN OF THE COPPER DEPOSITS OF MICHIGAN By HENRY R. CORNWALL ABSTRACT Five lava flows...flows in the Keweenawan series of the Michigan copper district have been studied and chemical analyses made...Amherst user 160 H. R. CORNWALL—KEWEENAWAN LAVAS, MICHIGAN ILLUSTRATIONS Figuie Page 1. Section across the...Modal variation in a pegmatitic flow above the Kearsarge conglomerate 172 6. Modal variation in the "Big" |  | | Journal (article/letter/editorial) | | and Sciences Michigan Technological University Tom Rosemeyer is a native of Upper Michigan and a graduate...graduate of Michigan Technological University in Houghton. Since retiring from the mining industry, he has...MINERALS Part 2: Southern Keweenaw, Houghton, and Ontonagon Counties, Michigan Tenth in a series of articles...along with datolite localities in northern Keweenaw County and Isle Royale National Park. Part 2 discusses...Portage Lake Volcanics (PLV) in southern Keweenaw, Houghton, and Ontonagon counties. GEOLOGY AND MINERALIZATION |  | | Journal (article/letter/editorial) | | 2013). TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Up Twenty-first...KEWEENAW COUNTY, MICHIGAN Tom Rosemeyer is a native of Upper Michigan and a graduate of Michigan Technological...shoreline of Lake Superior at Esery Park, Keweenaw County. Larry Maltby photo (July 2013). Figure 3. Map...Mineral Museum collection, Michigan Technological University, in Houghton, Michigan. olorful banded agates...agates, coined in about 1900 by Alfred C. Lane, a Michigan state geologist, has been used for the loose agates |  | | Journal (article/letter/editorial) | | Pewabic Copper-bearing Amygdaloidal Lode Houghton County, Michigan Lake Superior Native Copper District Sixteenth...Country TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net T he Lake Superior...Superior native copper district, also known as the Michigan Copper Country, is located on the sparsely populated...into Lake Superior near the western end of Upper Michigan. The Keweenaw winters can be long and cold with...indicated in brown. The expanded section from Houghton to Calumet shows the location of the individual mines |  | | Journal (article/letter/editorial) | | one, only and last. Who knows? COLLECTING IN MICHIGAN AND MINNESOTA By Lyle DeRusha, RR 4, Chippewa...Chippewa Falls, Wise. After quite some research on Michigan minerals and collecting areas we felt ready to venture...started with the old mines at Norway and Vulcan, Michigan, near the Wisconsin border. We arrived at Norway...road work. However a couple of good pieces of hematite and a nice cluster of barite crystals were found...digging two good specimens of pyrolusite. Specular hematite is quite abundant on the dumps. Continuing on |  | | Journal (article/letter/editorial) | | SOCIETY NOVEMBER, RECENT CONTRIBUTIONS OF THE MICHIGAN T. M. BRODERICK, OF GEOLOGISTS 1946 TO COPPER...previously publishedin geologicalstudies of the Michigan copperdistrict by the Calumetand Hecla GeologicalDepartment...Published by permission of E. R. Love11, President, Calumet and Hecla Consol{dated Copper Company. 675 676...Messrs. Broderick andHohljoinedtheregular•taff of Calumet andHecla,andMr. Butlerrejoinedthe U.S. Geological...ProfessionalPaper 144, "The Copper Depositsof Michigan," and the continuationof geological studiesby |  | | Journal (issue) | | 6 (Right) - Sheet Copper – Flambeau Mine (Rusk County, WI) Figure 2—Dr. Weis’s Personal Memorabilia...Figure 7—Manganoan Calcite – Montreal Mine (Iron County, WI). Figure 3 (left) - “Wonderful World of Agates”...mineral specimens from the Montreal Mine (Iron County, Wisconsin). Most of the specimens came from the...An unusual specimen from the Flambeau Mine (Rusk County, Wisconsin) is a sheet copper (figure 6). One of...selenite from the Bristol Mine, Crystal Falls, Michigan (figure 9). The deep blue color of an azurite |  | | Journal (issue) | | Gaylussite From Tecopa Dry Lake Sediments, Inyo County, CA Robert Housley1 (rhousley@its.caltech.edu)...Wikipedia, CC BY-SA 3.0 Copper-banded Agates from the Michigan Copper Country: An Update Tom Rosemeyer datolite@charter...agates from the Michigan Copper Country. The agates are found in the copper-bearing Kearsarge amygdaloidal...amygdaloidal lode in Houghton County, Michigan. These unusual agates, which range in size from 1 to 4 cm across...have been found at two mines, the Calumet & Hecla #21 and the Kearsarge #2. Ten years ago I wrote a full |
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