 | | 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 |  | | 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 (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) | | Iuyw I , < h,,,rl,rp,, ,,I I r,,,,l>,l\ T HE MICHIGAN COPPER DISTRICT stretches in a southwest-northeast...White Pine mine in Ontonagon County to Copper Harbor in Keweenaw County. Copper mineralization occurs...this type of lode is credited to the Calumet No. 1 mine on the Calumet and Hecla Conglomerate lode, which...the scientific world. From 1844 through 1995 the Michigan copper district produced a reported 14,595,357...period, five conglomerate bedsthe Allouez, Houghton, Calumet and Hecla, Kingston, and Minesota-within the |  | | 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 (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 |  | | 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) | | 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...about 1.3 miles east of the village of Laurium, Michigan. This little-known locality is seldom visited...of species, including quartz, pumpellyite-(Mg), epidote, calcite, hematite, prehnite, laumontite, and copper...Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological University, He now |  | | Journal (article/letter/editorial) | | the Tom Rosemeyer 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Keweenaw Figure...Copper Country Figure 2. Generalized map of the Michigan copper district showing the location of the new...Mineral Finds in Michigan’s Copper Country T he Michigan Copper Country, also known as the Lake Superior...into Lake Superior at the western end of Upper Michigan. The now-dormant copper mining industry, which...native of Upper Michigan, is a graduate of Michigan Technological University in Houghton. He now spends |  | | Journal (article/letter/editorial) | | February 2015 Figure 2. A generalized map of the Michigan copper district showing the location of new finds...end of the district. Keweenaw Point, Keweenaw County The waters off Keweenaw Point have drawn much attention...from the vein so far. Point Prospect, Keweenaw County Point prospect, located about 6 miles southeast...in the Point prospect vein. Fish Cove, Keweenaw County Yes, there are thunder eggs in the Copper Country...and Jim Flood in June 1998 at Fish Cove, Keweenaw County. Author's specimen, Ed Raines photo. cm in diameter |  | | Journal (article/letter/editorial) | | cookrob@auburn.edu KINOITE Christmas Mine, Gila County, Arizona F ew states can approach, much less...mineral in vugs and veinlets in skarn, and in Michigan it occurs as a rare constituent of amygdule fillings...the northwest and Rosemont to the southeast, Pima County, Arizona. The locality is about 30 miles (48 kilometers)...fluorapophyllite from the Christmas mine, Gila County, Arizona. Les and Paula Presmyk specimen, Jeff...kinoite crystals from the Christmas mine, Gila County, Arizona. Les and Paula Presmyk specimen, Jeff |  | | Journal (article/letter/editorial) | | ORE FLUIDS ON THE KEWEENAW PENINSULA, NORTHERN MICHIGAN ALEX C. BROWN†,* Department of Civil, Geological...district on the Keweenaw Peninsula in northern Michigan has long perplexed exploration geologists. Minor...Livnat et al., 1983) hydrothermal minerals such as epidote, chlorite, quartz, calcite, prehnite, pumpellyite...mining district on the Keweenaw Peninsula, northern Michigan, minor native copper lodes, and the White Pine...30 25 28 Calumet 48 Fau lt 40 32 20 54 F A U LT 48 58 64 56 Hancock Fa Houghton ult 24 |  | | Journal (article/letter/editorial) | | 130 132 133 133 INTttODUCT~ON. HE bluish-green epidote-like mineral, pumpellyite, was first described...the Lake Superior region, Calumet and Hecla mine, Houghton County, Michigan. The fragment consists of...of an aggregate of small epidote crystals on matrix, some of the epidote carrying a bluish-green dusting...choice of cell emphasizes relationships with the epidote group and also with lawsonite. It accords with...were Cu-Ka----1-540 _~., Cu-Kfl-~ 1.544 ~. The Calumet pumpellyite cell is as follows: a 8.81=]=0-02, |  | | Journal (article/letter/editorial) | | Copper-bearing Amygdaloidal Lode Houghton and Keweenaw Counties, Michigan TOM ROSEMEYER PO Box 369, 506...former naval officer who became an employee of the Calumet and Hecla Mining Company (Monette 1975). It was...the secondmost-productive lode discovered in the Michigan copper district. In the heyday of mining it became...from the district, was only out-produced by the Calumet and Hecla Conglomerate lode, which accounted for...minerals including analcime, calcite, datolite, epidote, microcline, natrolite, prehnite, and quartz. The |  | 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...Distribution of copper,.*»...................... 33 The Houghton conglomerate *>re body, Allouez No* 3* shaft.*...mine, No. 1* shaft * n Centennial mine ; | The Houghton conglomerate orebody Geologic plan of the Allouez...recently active copper mines, * -* Houghton and Keweenaw Counties, Michigan by * A H. R. Cornwall, J. J...f Study of the accessible mine workings of the Michigan copper district ",' .< ~ ^ " < ,, ' was undertaken |  | | Journal (article/letter/editorial) | | Alteration Associated With Mineralization in the Michigan Copper District (Received 31 August 1967) INTRODUCTION...association with native copper ore in the Keweenaw County. Michigan. copper district. The main clay phases include...brown fault gouge. GEOLOGIC SETTING The Keweenaw. Michigan. Copper District. (see location map. Fig. I) is...Native copper is closely associated with calcite. epidote, quartz, feldspars. chlorite. hematite. and zeolites...characterized by formation of feldspar, chlorite, and epidote. The intermediate period, during which copper was |  | | Journal (article/letter/editorial) | | Peninsula TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net T he Lake Superior...1997). The common gangue minerals include quartz, epidote, calcite, chlorite, prehnite, pumpellyite, and...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...collected copper-included quartz crystals. In Keweenaw County most of the copper mines exploited the northern |  | | Report (issue) | | Geology of Central Dickinson County Michigan GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation...Division^ Michigan Department of Conservation PAPER 310 Geology of Central Dickinson County Michigan By...cooperation with the Geological Survey Division, Michigan Department of Conservation UNITED STATES GOVERNMENT...entral crystalline block_____________________ Calumet trough___--__-______-_--___-____-Southern crystalline...iron ore in the areas east of central Dickinson County.. ________________ Other materials of economic |  | | Report (issue) | | X-ray Powder Pattern: Santa Rita Mountains, Arizona, USA. 4.72 (100), 3.052 (81), 6.44 (74), 2.116 (41), 3... 23.01 7.39 (1) Santa Rita Mountains, Arizona, USA. (2) Ca2 Cu2 Si3 O8 (OH)4 : Occurrence: In vugs and...Mountains, Arizona, USA); in amygdules in basaltic lava °ows (Calumet, Michigan, USA). Association: Apophyllite...Arizona, USA); quartz, calcite, copper, silver, epidote, pumpellyite, chlorite (Calumet, Michigan, USA). Distribution:...Distribution: In the USA, in Arizona, between Helvetia and Rosemont, Santa Rita Mountains, Pima Co., and |  | | 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) | | Amygdaloidal Lode Houghton County, Michigan TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter...Kearsarge copper-bearing amygdaloidal lode in Houghton County, Michigan. These unusual agates, which range in...northern part of the Lake Superior copper district in Houghton and Keweenaw counties. The copper-bearing Portage...indicated in brown. The expanded section from Calumet to Mohawk shows the individual mines along the...Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological University. He now |  | | Journal (article/letter/editorial) | | especially crystallized copper, adularia, and epidote. In 1985 mineral rights for the Caledonia mine... Colorado for the past twenty years. venture, Michigan, Hilton, Minesota, and other mines. Microminerals...Microminerals of the CALEDONIA MINE Ontonagon County, Michigan Most of the major mines were closed by 1920,...collector headed for the Upper Pen insula of Michigan this summer, there are numerous collect ing localities...to the A . E . Seaman Mineralogical Museum at Houghton. The museum is located on the fifth floor of the |  | | Journal (issue) | | From Keweenaw County, Michigan Tom Rosemeyer datolite@charter.net Even though the Calumet and Hecla Consolidated...ceased mining operations on the "Calumet" or "Main" ore shoot of the Calumet and Hecla Conglomerate lode in...CopperBearing Conglomerate Lodes of the Michigan Copper Country." The Calumet and Hecla Conglomerate can be traced...One exception is at the Central mine in Keweenaw County where it widens to 24-36 inches and was mineralized...adjacent to the Central mine fissure vein. In the Calumet area it attains a thickness of more than IO feet |  | | 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 |  | | Report (issue) | | ¯ = 97 ± 7(5)0 X-ray Powder Pattern: Calumet, Michigan, USA. 2.90 (100), 3.79 (50), 2.74 (50), 2.452...6.28 0.06 Total [100.98] (1) Calumet and Hecla mine, Michigan, USA; original total given as 100.97%...schists and in graywackes. Association: Chlorite, epidote, actinolite, lawsonite, glaucophane, prehnite,... quartz. Distribution: In the USA, in Michigan, at Calumet, Houghton Co., and elsewhere on the Keweenaw...deposit minerals of the Keweenaw Peninsula, Michigan, USA, and dominant magnesium content. Type Material: |
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