 | | Journal (issue) | | 473 SENIOR FELLOWS Peter Bancroft The Braen Quarry, Haledon, Passaic County, New Jersey . . . ....Boulder, Colorado. After high school, he traveled in Germany and enrolled at the University at Marburg. After...After a year of study, however, he left Germany because of World War II. Hal received his B.S. in Chemistry...glockenspiel. In 1966 Ken moved to the Haight-Ashbury district of San Francisco, where he continued to perform...stores and restaurants. This lasted until the district was taken over by the hardcore drug culture, which |  | | Book (volume) | | (Specord 75 IR or Specord M80, Carl Zeiss, Jena, Germany), Perkin Elmer 1600 Series FT IR spectrometer or...FT IR spectrometer (Bruker Optics, Ettlingen, Germany). IR spectrum of a pure KBr disc was subtracted... Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province... Hydroboracite CaMgB6O8(OH)6·3H2O Locality: District # 99, underground mine, Inder boron deposit, Atyrau... Locality: Ore body No. 90 , Nalednoe deposit, upper reaches of Jana river, Sakha Republic, Russia. Description: |  | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...thick, are found. The formation consists of an upper zone (200 to 500 meters thick) containing fresh...easily altered than the microcrystalline rock in the upper parts of the same flow; therefore, the base of the...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...found with other high-temperature minerals such as prehnite, pumpellyite, or epidote. Lieber (1978) described | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...thick, are found. The formation consists of an upper zone (200 to 500 meters thick) containing fresh...easily altered than the microcrystalline rock in the upper parts of the same flow; therefore, the base of the...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...found with other high-temperature minerals such as prehnite, pumpellyite, or epidote. Lieber (1978) described |  | | Journal (article/letter/editorial) | | Pink Prehnite from Michigan A MINERAL MUCH CONFUSED N. KING HUBER U.S. Geological Survey 345 Middlefield...mineral in question is actually copper-bearing prehnite. Thomsonite is now considered quite uncommon on...of Isle Royale National Park (Huber, 1969; 1975), showed pink prehnite to be the pre dominant mineral...however, as Dobell (1966) pointed out that pink prehnite pebbles from beaches on the Keweenaw Peninsula...many of them also to be prehnite. Prehnite or Thomsonite? Both pink prehnite and thomsonite occur as |  | | Book | | MineralogicalRecord.com I IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning...beginning of the 20th century, the Trimouns quarry became well known to collectors around 1990 for the...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...1991). Simdeled, Aust-Agder. Early in 1999, in a quarry near S~ndeled, collectors opened a pocket containing...PORTUGAL Montijos quarry, Monte Redondo, Leiria Estremadura. The Montijos gabbro quarry at Monte Redondo |  | | Journal (article/letter/editorial) | | ̈t Freiburg, Albertstr. 23 b, 79104 Freiburg, Germany (tobias.weisenberger@minpet.uni-freiburg.de) ABSTRACT...relatively low temperatures (<250 C) in the continental upper crust. The zeolites typically overgrow earlier minerals...Selbekk, 2009). The crystalline basement of the upper continental crust consists predominantly of granites...with secondary Ca-Al silicates such as epidote, prehnite or zeolites at low temperature (<250 C; e.g....Kenngott, 1866; Parker, 1922; Niggli et al., 1940; Huber, 1943; Sigrist, 1947; Stalder et al., 1998; Table |  | | Journal (issue) | | net Famous Mineral Localities: The Berezovsk District, Sverdlovsk Oblast, Russia .....................ajoite-included quartz in the Artonvilla mine, Messina District, Limpopo Province, South Africa ............................. 461 by P. Mayer & T. P. Moore Prehnite and zeolite distribution in the Orange Mountain...endless analysis of two unknown phases from Merehead Quarry, took up much of his time. Eventually, with the...curator. His work in the Mendips, and at the Merehead quarry in particular, was honored by the naming of a pink |  | | Report (volume) | | The Geologic Story of By N. King Huber Geological Survey Bulletin 1309 ROY/VLE Prepared in cooperation...Library of Congress Cataloging in Publication Data Huber, Norman King 1926The geologic story of Isle Royale...Chlorastrolite Michigan's state gem __________ Prehnite the little pink pebbles _____________ Agate an... The GeoloqiG^tory Hie National Park N. King Huber I, .sle Royale is an outstanding example of relatively...authorized a survey of the vast Lake Superior Land District to determine its mineral potential, and the result |  | | Report (issue) | | geologic characteristics of the Michigan copper district can provide exploration guides for northern Wisconsin...the mineralization of the classic native-copper district of Michigan could be helpful in suggesting that...similar size and exposure in the Michigan copper district suggests the following: if there had been significant...suggested by characteristics of the Michigan copper district and its regional setting. The discussion here...minerals of metamorphic origin are abundant in the upper amygdaloidal portions, whereas the original igneous |  | | Journal (article/letter/editorial) | | omitted from locality information. Where lot and district numbers are given, it is necessary to use topographic...the photographs. Baldwin County Milledgeville district—between the State Sanitarium and the Oconee River:...property—near Commerce: ferrocolumbite (Cook, 1978). Lula district—Standridge property, about 7.0 km east of Lula:...(chryso lite, olivine) (Teague, 1956). Jefferson district—9.7 km southwest of Jefferson on S.R. 11, northwest...Bartow County Allatoona Gold mine—lot 929, 21st district: bornite, chal copyrite, galena, gold, quartz |  | | Report (issue) | | carved basalt) 4 (3) 39 South Range Quarry South Quarry Volcanics Volcanics [PLy]) [PLV]) 5 (3)...the Keweenaw Keweenaw Peninsula native copper district 22 Figure 3: Figure Geology of the Lake Lake...profile of the the South South Range Range Quarry. Quarry. 38 Figure 21: 21: Cross section on MAP...with a maximum exposed thickness in the western Upper Peninsula of Michigan, of 6 km (Fig. 2) (Cannon...the Keweenaw Keweenaw Peninsula native copper district within the North North American American Midcontinent |  | | Journal (issue) | | and amygdaloids) identified in the Lake Superior District. One of the most economically and mineralogically...copper deposit. Many mineral specimens from the district have lost their provenance and can no longer be...industrial mining efforts in the Lake Superior District. Native American mining, starting as early as...early success brought much-needed capital to the district which allowed for the discovery and development...mine almost every major copper deposit in the district. European prospectors did best when they looked |  | Carrillo-Rosúa, Javier, Boyce, Adrian J., Morales-Ruano, Salvador, Morata, Diego, Roberts, Stephen, Munizaga, Francisco, Moreno-Rodríguez, Verónica (2014) Extremely negative and inhomogeneous sulfur isotope signatures in Cretaceous Chilean manto-type Cu–(Ag) deposits, Coastal Range of central Chile. Ore Geology Reviews, 56. 13-24 doi:10.1016/j.oregeorev.2013.06.013 | Journal (article/letter/editorial) | | the La Serena area, including the Talcuna mining district with around 15 Mt, at 1.5% Cu (Boric, 1985), and...1965), and the Quebrada Marquesa Formation, an Upper Barremian–Albian sequence of lava flows with continental...stratabound copper deposits in the Talcuna mining district (Boric, 1985). A lava flow from the Arqueros Formation...by andesites and by a carbonate sequence in the upper part of the Lo Prado Formation. Volcanism from the...celadonite (Morata et al., 2006). The Naltahua district consists of small and dispersed former mines hosted |  | | Journal (article/letter/editorial) | | that occur perched on crystallized quartz and prehnite. Complex crystals of datolite along with apophyllite...fissure vein that strikes N. 10° E. Quartz and prehnite are the main gangue minerals in the 1.5-foot-wide...Country’s classic localities. Figure 53 Figure 52 (upper left). The Petherick mine dumps along the Copper...known for microcrystals of rare minerals in small prehnite-quartz vugs. Chalcocite is found in exceptional...in an “eggshell” of microcrystalline granular prehnite. Shawn M. Carlson specimen, George W. Robinson |  | | Report (issue) | | copper knife from "Saguenay", thought to be the Upper Great Lakes, \vas presented to Jaques Cartier, early...era. Choice 'Lake Copper' furnished the sinew, Upper Peninsula hematite provided the muscle, and Michigan...never documented by geologists working in the district during its decades of maximum activity. Hence.............. 193 15. Tremolite from Metronite Quarry in Dickinson County ................ 207 IX THE...districts also was 1911 to 1920. The Marquette district peaked during 1941 to 1950. With declines in both |  | | Book | | divided into two areas geographically: the Northern (Upper) and the Southern (Lower) Peninsulas, which, to...0 ll:'. 0.. ~ 0 .... ei (I) 0.. ~ Cf) C: Upper Keweenawan Freda Sandstone Nonesuch Shale Copper...Oronto Group a.. 3: co w C: _J 0 0 Marquette Iron District, Baraga and Marquette Counties diabase dikes...originated from or ascended through regions of the upper mantle in which, if carbon were present in an oxygen-poor...Calcite, home to the world's largest limestone quarry (Figure 4); and 3. The southeastern corner of |  | | Journal (article/letter/editorial) | | Inc. Economic Geology, v. 103, pp. 1691–1694 DISTRICT-SCALE CONCENTRATION OF NATIVE COPPER LODES FROM...Economic native copper lodes in the Lake Superior district are confined to a 45-km-long portion of the Portage...incipiently buoyant brine at the scale of the mine district on that promontory. Introduction The restriction...native copper lodes to a single, compact mining district on the Keweenaw Peninsula in northern Michigan...and the probable development of a local, mine district-scale thermal plume of ore-forming fluid along |  | | Journal (issue) | | discovery was made in the northern part of the District by brothers John and Alvin Ferguson, farmers in...was platted next to the Magnolia Mine and the District was originally named after the Ferguson's. Exploration...Capt. J. R. De Lamar of Montana arrived in the District and purchased most of the significant claims around...was to become the Delamar Gold Mine. By 1894 The District name was changed to "Delamar" and the nearby town...town of Delamar, adjacent to the mine. The mine, District and town were variously known in the early days |  | | Journal (issue) | | Newsletten Ag-Cu-Pb-Bi Sulfosalts New to Darwin Mining District, Inyo County, California Gail E. Dunning 773 Durshire...Santa Cruz, California 95060 The Darw in mining district, Inyo County, California has lo ng been known...quartz from the Laurium and other mines in the Upper Peninsula of Michigan, was recently discovered by...by walking the river bars looking for pieces of prehnite which many times contain copper and associated...this region. Generally. eye examination of the prehnite gangue was the most rewarding, as many of the |  | | Journal (article/letter/editorial) | | Rohstoffe , D-30631, P.O. Box 510153, Hannover, Germany Published online: 06 Jul 2010. To cite this article:...Rohstoffe, P.O. Box 510153, D-30631 Hannover, Germany Downloaded by [ECU Libraries] at 03:46 02 June...minerals are calcite, quartz, epidote, chlorite, prehnite, chalcedony, and zeolites. This alteration paragenesis...temperature for the transition from zeolite to prehnite-pumpellyite facies is estimated at 210° C (Livnat...similar to the ore-forming process in the Keweenaw district. The age of the Portage Lake basalt and andesite |  | | Journal (issue) | | (1929) is considered to be the classic for the district. Many of these works are currently out of print...and research will serve as an overview of the district and as a framework from which interested persons...location and associated geology of the mines in the district. Historical and production information is summarized...history of mineral collecting itself (which began in Germany around 1530). It continues with unabated enthusiasm...solely to bibli ographies on this rich mining district. For an entertaining review of the area’s long |  | | Journal (article/letter/editorial) | | the northern part of the Lake Superior copper district in Houghton and Keweenaw counties. The copper-bearing...on 29 October 2011. Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological...Country researching and writing articles on the district. Volume 87, July/August 2012 353 Downloaded...juts out into Lake Superior at the western end of Upper Michigan, is located along the arch-shaped Middle...The main part of the Lake Superior native copper district lies within the band of PLV that forms the south |  | | Report (issue) | | volcaniclastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic...volcanic clastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic... 1989), International Curator Resources, Ltd. (Huber and Barnett, 1988), and Placer Dome U.S. (Bull and...metatuff and pelitic, mafic and graphitic schist. The upper contact of this unit is a thrust fault that trends... The rocks overlying the thrust are middle- to upper-greenschistfacies graphitic schist, argillite, phyllite |  | | Journal (article/letter/editorial) | | incorrect information pertaining to the Chips from the Quarry of Como kimberlite minerals of agate—plus COMING...("Michigan and the Lapidary") and N. King Huber ( " P i n k Prehnite from Michigan"). FEDERATION ROCKS AND |
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