 | | Journal (article/letter/editorial) | | Volcanic Belt, northern Wisconsin, Michigan and east-central Minnesota, USA: Implications for future...LLC, 34898 University Ave, Cambridge, MN 55008, USA A R T I C L E I N F O A B S T R A C T Keywords:...Volcanic Belt (PVB) of northern Wisconsin, Michigan and east-central Minnesota, USA. These cycles are responsible...paleoweathering profiles. The most significant are at the Flambeau and Back Forty deposits where Au-Ag-enriched indigenous...ores, as was the case at Flambeau (Flambeau Mining Corporation, 1976; Flambeau Mining Inc., 1990). Although |  | | Journal (article/letter/editorial) | | EarlyProterozoicVolcanogenie MassiveSulfideDepositsin Wisconsin' An Overview THEODORE A. DEMATTIES 10-353rd AvenueN...144-mi-long,eastwest-trending Ladysmith-Rhinelander metavolcanic complex,which consists of various greenschists...zationin the 1880 to 1860 Ma Ladysmith-Rhinelander metavolcanic complex:(1) a mainvolcanic-arcsequence...ce, the structuralcore of the complex,(2) a laterallyequivalentand/oryounger(?),back-are basin,volcanic-volcaniclastic...volcanogeniemassivesulfidemineralizationin the Wisconsin FOul• potentiallyeconomicvolcanogenie(volcan |  | | Journal (article/letter/editorial) | | Sciences University of Wisconsin-River Falls 410 South Third Street River Falls, Wisconsin 54022 his is Wisconsin’s... breweries, bratwurst, and Packers football, Wisconsin also has a diverse geology and a history rich...forgotten, abandoned, and overgrown. In this respect, Wisconsin represents a frontier state for the mineral collector...several new localities, including the Flambeau copper mine near Ladysmith (Rosemeyer 1999, the Vulcan Materials...Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster 1987) |  | | Journal (article/letter/editorial) | | Photographs JanuarylFebruary: Copper, Ray, Pinal County, Arizona. Les Presmyk specimen, Jeff Scovil photo...with quartz and albite, Tourmaline Queen mine, San Diego County, California. Houston Museum of Natural...claims, Farncomb Hill, Breckenridge district, Summit County, Colorado. Denver Museum of Natural History specimen...Azurite on malachite ring, Flambeau mine, Ladysmith, Rusk County, Wisconsin. Dan Behnke specimen and photo... calcite, and chalcopyrite, Sweetwater mine, Reynolds County, Missouri. Marvin Rausch specimen, Jeff |  | | Journal (article/letter/editorial) | | Jeffrey Scovil photo. July/August: Calcite, Gallatin County, Mon tana. American Museum of Natural Histo ry...September/October: Chalcocite, Flambeau mine, Ladysmith, Rusk County, Wiscon sin. F. John Barlow specimen...November/December: Chalcocite, Bristol, Hartford County, Connecticut. Jim Minette specimen, Jeffrey Scovil...Vanadinite mine, 56-59 Arkansas, Potash Sulphur Springs, 154-70 Arsenopyrite, Connecticut, 128; Wisconsin, 338...Contributed Papers in Specimen Mineralogy Azurite, Wisconsin, 338 Babcock, L . E . , see Media Reviews Babingtonite |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...of bomite, 5.7 cm, from the Flam beau mine, Ladysmith, Wisconsin. William Larson collection; Jeff Scovil...Weardale fluorite miniature for $140, a beautiful 79 mine aurichalcite (2.75 inches) for $140, a Zambian libethenite...Tucson, Arizona 85721 Mexico is a geologically complex land with excellent examples of most of the tectonic...Tredwell to carefully document the localities by mine and sometimes by level. It also afforded him superior |  | | Report (issue) | | 90◦ X-ray Powder Pattern: Bristol, Connecticut, USA (close to djurleite). 1.8800 (100), 2.4030 (70),...00 (1) Butte, Montana, USA; Fe present as pyrite. (2) New London, Maryland, USA; contains Fe as bornite...orebodies. Association: Pyrite, chalcopyrite, covellite, bornite, molybdenite, many other sulfides and...pure masses can be listed. From the Turinsk copper mine, Bogoslovsk, Ural Mountains, Russia. In England...St. Just, St. Ives, Camborne, and Redruth. In the USA, exceptional crystals from Bristol, Hartford Co. |  | | Journal (issue) | | Menasha, Wisconsin, the Weis Earth Science Museum (figure 1) is part of the University of Wisconsin Oshkosh...designated it as the Official Mineralogical Museum of Wisconsin, and its mission is to preserve and promote the...the unique geologic and mining heritage of Wisconsin while underscoring the importance of earth science...teaching at Lawrence University in Appleton, Wisconsin. Ten years later, he moved to UW-Fox Valley where...brown jarosite crystals on matrix from the McLean Mine, Esmeralda Co., Nevada. The Martian material was |  | | Journal (issue) | | described from slags at Le Celine di Cotoriano Mine (Rosia, Siena Province, Tuscany, Italy). I have...aesthetic end we saw the best stibnite from Xikuangshan Mine (Lengshuijiang, Shaoyang, Hunan Province, China)...on the This year, giYe the gift of information! Mine al The Mineral Collector's Mineral News, The Mineral...Conselheiro Pena, Minas Gerais, Brazil): 2-5 cm complex aggregates of striated crystals - are they partly...even if the specimens are perfect, they are so complex, you can hardly identify the crystal form. The |  | | Journal (article/letter/editorial) | | reach 18 cm on edge. The crystals can become more complex than mere tetrahedra, being modified by other forms... acanthite, sternbergite, enargite, bornite, covellite, calcite, dolomite, siderite, barite, fluorite...tennantite crystals from the Champion lode, Clear Creek County, Colorado. Dave Bunk specimen, Jeff Scovil photo...group of sharp and complex tennantite crystals with quartz from the El Cobre mine, Concepción del Oro...tennantite specimen from the Longfellow mine, Red Mountain Pass, Ouray County, Colorado. Dave Bunk specimen, Jeff |  | | Journal (issue) | | until 5/26/15 U S $5.99 0 74470 02033 PRINTED IN USA 2 05 2 www.rockngem.com Ultra Tec.idml 2 3/3/15... 12 Ladysmith, Wisconsin, is the site of a remarkable deposit of copper species. This Flambeau mine...first dig. My dad and I went to the Diamond Hill mine in South Carolina and dug for skeletal quartz, amethyst...Kalamazoo Geological and Mineral Society, Kalamazoo County Expo Centr; 2900 Lake St.; Fri. 4:00 pm-8:00 pm...displays, silent auctions, specimen tables, mineral mine, free Petoskey stone polishing, participation from |  | Carlson, Shawn M., Robinson, George W., Elder, Mark J., Jaszczak, John A., Bornhorst, Theodore J. (2007) Greenockite and Associated Uranium-Vanadium, Minerals from the Huron River Uranium Prospect Baraga County, Michigan. Rocks & Minerals, 82 (4) 298-309 doi:10.3200/rmin.82.4.298-309 | Journal (article/letter/editorial) | | [Northeastern University] at 17:57 01 December 2014 Baraga County, Michigan Figure 1. Contact between mineralized...mines, historic or modern, in this part of Baraga County, the area is intriguing in that it lies nearly...region each year. ������� small (less than 1-mm) complex crystals, making the Huron River uranium prospect...uranium prospect is located in northern Baraga County, Michigan, approximately 32 kilometers northeast...graduate of Bay De Noc Community Colin all of Baraga County. With the exception of quartz, malalege and a consulting |  | | Journal (article/letter/editorial) | | 36849-5305 C h a l c o c i t e BRISTOL, HARTFORD COUNTY, CONNECTICUT This classic chalcocite is representative...twins produced from the Bristol, Connecticut, copper mine in the mid-1800s. The 8 by 6 by 4-cm specimen exhibits...specimens saved during the nineteenth century from the mine in Bristol, Connecticut, A m e r i c a n chalcocite...sulfide enrichment consisting o f chalcocite and covellite. S u c h deposits include those of Ducktown, Tennessee;...Exceptional chalcocite pseudomorphs after euhedral covellite crystals to 3 c m across have been found at Butte |  | | Book (volume) | | instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles Eye Tunnel |  | Yesares, Lola, Sáez, Reinaldo, Nieto, José Miguel, De Almodovar, Gabriel Ruiz, Gómez, Carmelo, Escobar, Juan Manuel (2015) The Las Cruces deposit, Iberian Pyrite Belt, Spain. Ore Geology Reviews, 66. 25-46 doi:10.1016/j.oregeorev.2014.10.019 | Journal (article/letter/editorial) | | Late Devonian–Mississippian Volcano-Sedimentary Complex (VSC) and the Late Visean–Moscovian post-volcanic...ore facies The Las Cruces ore deposit shows a complex shape as a result of the Variscan deformation and...images of selected drill cores and outcrops. a) covellite-rich secondary mineralization replacing primary...primary pyrite; b) banded texture in covellite-rich secondary ore; c) and d) oxidized euhedral crystals of...consists mainly of chalcocite, digenite, djurleite, covellite, bornite and enargite, together with subordinate |  | | Journal (article/letter/editorial) | | medium-grained aggregatesof subhedral digenite,bornite,and covellite;occasional grains of to euhedralcrystalswhichare...significantdifferenceswere detected. 1976). At Flambeau,a distinctioncan be madebe- Galenais foundas...beingmerely rimmedby minerals,chalcocite, bornite,and covellite(Figs. 3 theseminerals. The greaterintensityof...southernChileby Sillitoeet al. (1968). The area caseof the Wisconsin examples the Flambeaudeposit theseworkersstudiedwas...areaswithin this part of the Shield: northern Wisconsin,the Chibougamaudistrictof northernQuebec,and northern |  | | Catalog/List | | 00 each. AURICHALCITE - BISBEE: Southwest Mine, Cochise County, Bisbee, Arizona: Exceptional baby blue...$2.00 each AURICHALCITE - 79 MINE: 79 Mine, Banner District, Gila County, Arizona: Delicate radiating... AZURITE - MORENCI MINE Morenci Mine, Clifton-Morenci District, Greenlee County, Arizona: Excellent...limited supply. CALCITE - BISBEE: Southwest Mine, Cochise County, Bisbee, Arizona: AWESOME! Exquisite masses...2X2 inch specimens: $5.00 each CAMPYLITE: Dry Gill Mine, Cumberland, England; A unique and rare species |  | | Journal (article/letter/editorial) | | Alteration of the Crandon MassiveSulfideDeposit, Wisconsin ROBERT N. LAMBE* AND ROGER G. ROWE Exxon Company...locatedapproximately 10 km south of Crandon in Forest County, Wisconsin.Most of the area is coveredby glacialdepositsrangingin...ts, end of the deposit(Figs.3 and4). Crandon, Flambeau, PelicanRiver, and subeconomic Nashvilleunit:...8E andF) or pyrite-sphaleritechalcopyriteveins. Mine recoverablereserveshave been estimatedat 61 million...n the base of the in thickness)of chalcocite,covellite,and rarely, bornite (Fig. 17B).Radialaggregates |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Steven R. Morehead...COVER: COPPER, 8.3 cm, from the Central mine, Keweenaw County, Michigan—considered by some to be the world’s...fine minerals on DVD wilensky Fluorite, Huanzala mine, Dos de Mayo Province, Peru. Wilensky Fine Minerals...of the localities and showcases. Then came the complex arrangements with Peter Megaw of the TGMS and Show...1900s. The epidote specimens occur within a skarn complex on privately owned patented mining claims which |  | Tornos, Fernando, Velasco, Francisco, Slack, John F., Delgado, Antonio, Gomez-Miguelez, Nieves, Escobar, Juan Manuel, Gomez, Carmelo (2017) The high-grade Las Cruces copper deposit, Spain: a product of secondary enrichment in an evolving basin. Mineralium Deposita, 52 (1) 1-34 doi:10.1007/s00126-016-0650-3 | Journal (article/letter/editorial) | | Survey, National Center, MS 954, Reston, VA 20192, USA 4 Laboratorio de Biogeoquímica de Isótopos Estables...orebody and ca. 0.8 Mt at 8 % Cu in a separate covellite-rich orebody called HC4. In addition, the Las...limestone Mafic intrusive rocks Volcanosedimentary Complex. Dominantly felsic domes PQ Group: shale & sandstone...only the secondary ore, the mine has a projected life until 2022. The mine will produce ca. 1 Mt of copper...includes a lower cementation zone superimposed by a complex zone of red and black rocks rich in lead and precious |  | Yesares, Lola, Sáez, Reinaldo, Nieto, José Miguel, de Almodóvar, Gabriel Ruiz, Cooper, Stephen (2014) Supergene enrichment of precious metals by natural amalgamation in the Las Cruces weathering profile (Iberian Pyrite Belt, SW Spain) Ore Geology Reviews, 58. 14-26 doi:10.1016/j.oregeorev.2013.10.004 | Journal (article/letter/editorial) | | Mineralogical studies conducted on samples from the active mine workings indicate that Hg and precious metals occur...fugacity (Krupp and Weiser, 1992). Au bisulfide complex [Au(SH)− 2 ] can occur in supergene environments...periods. Thus, thiosulfate is the most probable complex under near-surface environment and neutral conditions...oxidation product of Ag unlikely, although more complex sulfate phases (i.e., argentojarosite) are common...Late-Famennian– Tournaisian Volcano-Sedimentary Complex, and the Visean–Westphalian B Post-Volcanic Culm |  | | Journal (issue) | | d'Ossola, Italy; Lyangara, Uzbekistan; and the Emma Mine, Little Cottonwood District, Salt Lake Co., Utah...News, P.O. Box 2043, Coeur d'Alene, ID 83816-2043 USA Phone: 208-664-2448 • 3 E-mail: lream@comtch.iea..." and regular or reverse sceptering as well as complex multiple terminations arc very common. Other rarer...size range. with fonns typically sufficiently complex to require I Ox m:igni fication for the fullest...dimension but the microscopic crystals have a more complex morphology and display numerous habits of which |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A, County Mus. of Nat. Hist. Los Angeles, CA Steven R. Morehead...group, 13 cm, w ith calcite from the Minerva No. 1 mine, near Cave in Rock, Illinois. Marvin Rausch collection;...Sterling mine at Antwerp, New York; the Alpine veins near Sherbrooke, Quebec; the Nanisivik mine on Baffin...country and soon became a collector. The cobalt mine at Bou-Azzer was among his favorite localities,...really fine azurite specimens from the now-famous mine at Touissit, and later many superb cerussites and |  | | Book | | be minerals. Microcline, Crystal Peak, Colorado, USA * 12 x 9x 5 om MINERALS: PRODUCTS OF A CHANGING...zeolites. Calcite (septarian nodule), San Juan County, Utah, USA * 18 x 24x Bem 14 | MINERALS: PRODUCTS...Madagascar e(2x23x3em Quartz, Mount Ida, Arkansas, USA ° 14x 15 x 10 cm Corundum, Mozambique * 17 x 11...mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular |  | | Journal (issue) | | 85740. Front cover: COVELLITE crystal cluster, 3 cm across, From the Leonard mine, Butte, Montana. Frederick...sulfosalts like bornite, chalcocite, colusite, covellite, digenite, djurleite, and enargite rank among...the Butte mining camp, especially in the Kelley mine, was just full of vug holes . . . the holes, some...located in Butte, at the site of the old Orphan Girl mine. . . . So wrote a trainee miner, Jerry Dolph, concerning...an underground stope at Butte, Montana’s Kelley mine in the early 1970’s (Dolph, 1994). The wonderful |
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