 | | Journal (issue) | | copper in the Quincy mine ca. 1918. (Michigan Technological University Archives, Houghton) D e d ic ated...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 . |  | | 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 |  | | 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) | | MICROMOUNTING AT THE KEWEENAW PENINSULA, MICHIGAN By PAUL B. MOORE and RICHARD M. 6EGER Depr. of Geolophysical...UNIVERSITY] at 03:21 25 August 2017 INTRODUCTION The Keweenaw Feninsula is well-known for its fine specimens...collectors with limited time, may we suggest the Hancock Mine (on Ingot St., Hancock). The dump looks terrible...chlorite minerals are the best found anywhere in the Keweenaw Peninsula. PUMPELLYITE (6Ca0.3Al 2 0 3 .7Si0 2...due to the parallel growth of xls. At the Hancock Mine, Hancock, it occurs upon xls of epidote and quartz |  | | Journal (article/letter/editorial) | | From Michigan’s Keweenaw Peninsula TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter...of mines in the district, especially the Quincy mine. Crystals ranged in size from micro to large-cabinet...apophyllite , natrolite, and microcline (variety adularia) occur less frequently as free-growing crystals...in the tenth grade. I have collected most of the mine dumps during the past sixty years and have found...native of Upper Michigan, is a graduate of Michigan Technological University in Houghton. He now spends |  | | Journal (article/letter/editorial) | | COPPER-BEARING FISSURE VEINS Keweenaw County, Michigan Downloaded by [University of Delaware] at 05:05...crystallized copper specimen came from the Central mine and was in the collection of Donald C. Gabriel....exploration 2. Cliff mine 3. Phoenix group of mines 4. Central mine 5. Northwestern mine 6. Central exploration...Resolute mine 9. Hard Rock fissure 10. Iron City (Empire) mine 11. Cape mine 12. Copper Falls mine 13. Clark...Clark mine 14. Point prospect 15. Mendota mine 16. Gull Rock fissure and Laker pocket Figure 3. A 1900 |  | | Report (issue) | | University University Michigan Townsend Drive Drive 1400Townsend 1400 Houghton, Houghton, Michigan Michigan49931-1...J. the Keweenaw Peninsula, Michigan: Institute on Lake Superior Geology Proceedings, Keweenaw Peninsula...Peninsula, Michigan: Institute on Lake Superior Geology Proceedings, 40th 40thAnnual AnnualMeeting, Meeting...Meeting,Houghton, Houghton,Ml, 40, part part2, 2, 185 185p. p. MI,v.v. 40, 1 PREFACE PREFACE In 1983 1983..."Field Guide to the Geology Geology of the the Keweenaw Keweenaw Annual Institute Institute on on Lake Lake |  | | Journal (article/letter/editorial) | | the railroad tunnels through Bergen Hill, Bergen County, and similar specimens have been collected in railroad...Weehawken areas and quarries at Snake Hill, Hudson County. Exceptional analcime specimens have been collected...collected from many localities in Passaic County, such as quarries at Paterson and West Paterson (including...Montclair and Verona in Essex County, the Houdaille quarry at Summit in Union County, and quarries near Millington...Millington, Morris County. Good specimens are similarly reported from Plainfield and the Chimney Rock and |  | | Journal (article/letter/editorial) | | bottom of Lake Superior near Eagle Harbor, Keweenaw County, Michigan. The near-shore find, now called the Laker...9,000–15,000 feet, and form the “spine” of the Keweenaw Peninsula. Interbedded with the basalt flows are...and Lankton 2006). In the central portion of the Keweenaw Peninsula the strike of the PLV changes from northeast...native copper in the open fractures. The Cliff, Phoenix, Copper Falls, and Central mines were the most...Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological University. He now |  | | Journal (article/letter/editorial) | | THE CLIFF MINE, discovered in 1844, is located on the Keweenaw Peninsula of Upper Michigan in the heart...first mine on the "Keweenaw" to pay dividends to stockholders. Throughout its history, the mine also produced...over. N ative copper was first mined on the Keweenaw Peninsula several thousand years ago by Native...period but ended unsuccessfully. Dr. Douglass Houghton first visited the copper region in 1830 and published...controlled three mineral tracts on the northern part of Keweenaw Peninsula. After examining the copper prospect |  | | Journal (issue) | | MICHIGAN COPPER! The Mineralogical Record JANUARY-FEBRUARY 2023 ? VOLUME 54 ? NUMBER 1 ? $40 ... KRISTALLE Est.1971 Laguna Beach, California, USA • Tel: +1 949 494 5155 • Email: info@kristalle.com.......................3 by W. E. Wilson The Keweenaw County Fissure Mines....................................13 by C. J. Stefano The Cliff Mine, Keweenaw County, Michigan...................................... Stefano & P. Persson The Central Mine, Keweenaw County, Michigan................................... |  | | Journal (article/letter/editorial) | | from a large vug in the fissure vein of the Cliff mine; the largest crystal is 2 cm across. The specimen...Probably the best arborescent silver from the Cliff mine, this specimen is 9.5 × 10.5 cm and was originally...Jaszczak photo. Figure 18. This calcite from the Cliff mine is 3.6 cm long and perched on a matrix of spongy...on earth (Bornhorst and Rose 1994). At the Cliff mine it thickens to more than 1,300 feet and remains...some of the veins (Butler and Burbank 1929). Cliff Mine After the failed 1844 mining venture at the Hays |  | | Journal (article/letter/editorial) | | 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Keweenaw Figure 1. A delicate group...of copper crystals collected at the Ojibway No. 1 mine in summer 2009 by Steve Whelan. The specimen is...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...scenic Keweenaw Peninsula, which juts out into Lake Superior at the western end of Upper Michigan. The |  | | Journal (issue) | | .. . . . . .. . ......... . .. . .. 144 ANCIENT MINE SAVED GREEK CIVI L I ZATION . ............... 147...mineral is also common in the copper region of Keweenaw Peninsula, Mich., where is occurs in veins with...specimens. When you bring home specimens collected at a mine, quarry, or other locality, WASH THEM in water with...COUNTRY By KIRIL SPIROFF Michigan College of Mining and Technology The Michigan Copper Country is of unique...1841 a report by Dr. Douglass Houghton, the first state geologist of Michigan, aroused interest in the economic |  | | Journal (article/letter/editorial) | | News from the Keweenaw Downloaded by [Florida State University] at 18:43 12 November 2014 Part 3—Recent...years have passed since the last “News from the Keweenaw”; this article updates new finds to the spring...native of Upper Michigan and a graduate of Michigan Technological University in Houghton. Since retiring...year. During the last four years, the crushing of mine dumps (poor-rock piles) for road repairs and construction...construction in the Keweenaw. However, extensive logging operations, primarily in Keweenaw County, have increased |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1005 3 Department of Geosciences...Coromandel volcanic zone contains approximately 50 adularia-sericite epithermal Au-Ag deposits in a 200-km-long...goldfield, adularia from Paritu yields a single 40Ar/39Ar plateau date of 16.32 ± 0.13 Ma, and adularia from...province, adularia from the Ohui deposit gives a preferred 40Ar/39Ar age of 8.29 ± 0.25 Ma, adularia from...preferred 40Ar/39Ar age of 7.12 ± 0.02 Ma, and adularia from the Wharekirauponga prospect yields a preferred |  | | Book | | variety, etc. T Tsumeb (vol. 8, no. 3) M y Michigan Copper Country (vol. 23, no. 2) Co. Company...five book-format issues (8/#3, Tsumeb; 23/#2, Michigan Copper Country; 23/#4, Yukon Phosphates; 24/#2...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...[Sweden] 10:215-217 ADULARIA Adu Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J....AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298 |  | | Catalog/List | | QUARTZ RHODOCHROSITE District Mine. Climax Climax olTolg-Yole Lake. County. ncredibly difficult it is...years to find a specimen rhombs rhombs Climax Mine, ot rhodochrosite $50 OOU 60.000 Ex The ...ollection County, Colorado; measures 8 nn ae from the \ slight ¢ « nax 1g Mine : The Kevin...silver was found in the late 1970s at the Dukat Mine measures which is mainly known by 6 cm Ex: Helmut... initely a unique opportunity. From the Dukat Mine, Dukat Gold-Silver Ore Field, Magadan Oblast’, East |  | | Catalog/List | | our best attention at all times. JDLY 1974 1. ADULARIA. Schonblick, Tyrol, Austria. Specimen A - Sharp... 5. APATITE variety FRAN~OLITE. Fowey Consols Mine, Tywardreath, Cornwall. Choice, small, sharp transparent...display. 4ix4". £12. AURIc~LCITE. AXINITE. Obira Mine, Oita Prefecture, Japan. Lustrous, sharp, clove...BARYTOCALCITE. Admiralty Flats, Nentsberry Haggs Mine, Nr. ,;lston Cumberland. Intergro~m group of large...crystaL Itxl". £2. 16. BREWSTERITE. Bellsgrove Mine, Strontian, Argyll, Scotland. Superb, transparent |  | | Book (volume) | | Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:...agate, (banded, various colors), jasper. BIBB COUNTY MACON: at Holton Quarry, 7½ mi. NWagate; N |  | | Journal (issue) | | Menlo Park, CA Donald R. Peacor University of Michigan Ann Arbor, Ml George W. Robinson Natl. Museums...typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue...Statistically, shafts are the most dangerous part of any mine; 90 percent of all accidents and entrapments in |  | | Journal (article/letter/editorial) | | specimens found there in the ore cars and in the mine itself. Even today Sr. Folch’s collection is, by...He also frequently attended the annual Detroit (Michigan) Gem and Mineral Show when it was the second-best...8. Samsonite, main crystal 1.1 × 0.3 cm, Samson mine, Saint Andreasberg, Saint Andreasberg district,...impressive: smoky quartz (gwindel), quartz, hematite, adularia, an exceptional violet apatite-(CaF) on matrix...twin on adularia from Sedrun. Figure 9 (top). Phosgenite, 8.0 × 7.5 × 5.3 cm, Monteponi mine, Iglesias |  | | Catalog/List | | specimen lot, one from each group. l. $ 350. 00 ADULARIA Val Cristallina, Switzerland. Select p.1re milky...locality. 4½x6x3½" $50. 00. 7. CALAVERITE Cresson mine, Cripple Creek, Teller Co., Colorado. Select silvery-gray...with fluorite. 3x4" $85. 8. CASSITERITE Siglo XX mine, Llalla.gua., Bolivia, Choice lustrous jet-black...psilomelane. 3½x4½"$35.00. 10. CBALCOSIDERITE Wheal Phoenix, Cornwall, England. Superb dark emerald-green drusy... 3x3:xl¼" $35. 00. 12. COPPER and SILVER Seneca mine, HouP-ton, Michtga.n. Chotce bronze metallic irregular |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...George W. Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents...Joe Polityka Staten Island, NY Jeffrey A. Scovil Phoenix, AZ Pierre-Nicolas Schwab Orleans, France Associate...Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica Van Pelt Los Angeles, CA Librarian |  | | Journal (issue) | | Vanadinite 3.4 cm, from the North Geronimo mine, La Paz County, Arizona. Dick Morris collection; Jeff Scovil...Arizona Mineral Minions collector group based in Phoenix, the Mineralogical Society of Arizona, the Flagg...Secretary of the House. In due course I drove up to Phoenix to monitor the reading of the bill on the House...Wulfenite, 5.4 cm, from the Defiance mine near Gleeson, Cochise County, Arizona. Ken Donn photo. 6 Supplement... Summit County, Colorado. Ken Donn photo. Wulfenite (hot-pink), 3.7 cm, from the Glove mine, Tyndall |
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