 | | Journal (issue) | | Institute of Gemstone Research, University of Mainz, Germany 4. Earth Science, Department of General Science...Consulting Geologist, P.O.Box 101124, D-69451 Weinheim, Germany. Email: reinramdohr@yahoo.com 2. Deutsche Stiftung...-Schlossmacher-Str.1, D-55743 Idar-Oberstein, Germany. Email: info@gemcertificate.com Abstract: The...exploration is largely done by local villagers, who mine selectively in creek beds. Although up to 20 ct/m3...production of untreated rough stones directly from the mine should bring > 25 US$ per m2 of mined surface. All |  | | Journal (article/letter/editorial) | | analysis Hartwig E. Frimmel a,b,â, Sibylle Schedel a, Helene BrĂ€tz c a Bavarian Georesources Centre, Institute...University of WĂŒrzburg, Am Hubland, D-97074 WĂŒrzburg, Germany Department of Geological Sciences, University of...Erlangen-NĂŒrnberg, Schlossgarten 5a, D-91054 Erlangen, Germany b a r t i c l e i n f o Article history: Available...University of WĂŒrzburg, Am Hubland, D-97074 WĂŒrzburg, Germany. Tel.: +49 931 3185420; fax: +49 931 3187344. E-mail...Hercynian (Variscan) Mid-German Crystalline Rise in Germany. The former locality is near the village of EkomĂ©dion |  | | Journal (issue) | | greatly with the sophisticated techniques used to mine the first bulk sample pit. Virtually all o f the...map shows the two major areas (left the Landak district of western Kali= man tan, below = the Bmjarn~asin-Maitapura...000 guilders worth of diamonds from the Landak district in what is now western Kalimantan. The 367-ct...Serimbu [north of the city of Ngabang), on the upper reaches of the 70 Diamond Deposits of Borneo ...Meratus Mountains, diamonds have been found i n the Upper Cretaceous con- GEMS & GEMOLOGY Summer 1988 71 |  | | Journal (article/letter/editorial) | | IC GNEISSES (3.5 Ga) HIGH AI- Mg -- SEDIMENTS FUCHSITE QUARTZITES BANDED IRON FORMATION (BIF 1) MAFIC...Naqvi et al 1988. ) LEGEND ~ Conglomerate Fuchsite Quor Mongoniferous Greywacke Quartz and Ar kosic...from basic to acidic, metagabbros, graywackes, fuchsite-quartzite, carbonaceous schists, metapelites,...extended all help and facilities at the Donimalai mine area. An earlier version of the manuscript has been...origin of the late Archaean siderite-pyrite rich Helene Iron Formation, Michipicoten belt, Canada. Can |  | | Journal (issue) | | Perrey/France R Nacken/Cermany H Espig/IG-Farben/Germany CC Chatham/USA Cilson/France W Zerfass/Cermany...where found in large deposits, such as in the copper mine at Rio Tinto in south-western Spain, it is still...in 1896, Phillips'4 mentions that at Meggen in Germany operations commenced with surface mining of hematite...fact the 'young man', by then aged 70, escaped to Germany and followed his family to South America. The company...of Arnoldsche Verlagsanstalt GmbH, Stuttgart, Germany). medium-priced jewellery of artistic merit stood |  | | Journal (issue) | | Cover Picture Faceted sapphire from Cyangugu district, SW Rwanda. See Investigations on sapphires from...Sapphires have been discovered in the Cyangugu district in south-west Rwanda (bordering Zaire) and details...discovered in 1917 the deep blue beryls from the Maxixe mine in Brazil have been a source of fascination both...Abstract A new deposit of sapphires in the Cyangugu district of SW Rwanda has been investigated. The sapphires...sapphire deposit in a basalt province in the Cyangugu district, SW Rwanda (Figure 1). This investigation was |  | | Journal (issue) | | Examine a black opal from the Li_ghtning Ridge mine in which the warm colors predominate and you may...gazing upon a black opal from the Lightning Ridge mine gave vent to her feelings in unequivocal terms:...judged, the pocket has hardly been touched. The upper end of the workings is now directly under the first...zircon are obtained from the face of an abandoned mine tunnel near the northeast base of St. Peter's Dome...along the eastern slopes of the mountains. The district is well timbered and watered and the numerous |  | | Journal (article/letter/editorial) | | 01:21 07 August 2017 PINK CORUNDUM IN VIVID GREEN FUCHSITE â Cabinet specimens of s t r i k ing beauty f...2 5 * ( r e fundable) ! Indian Relic Gallery, 8 Helene Avenue, M e r r i c k 12, N e w Y o r k . "OVERLOOKED |  | | Journal (issue) | | sitat Gutenberg-UniversitĂ€t Mainz, Mainz, Germany Germany ABSTRACT: ABSTRACT: Two Two new new types...VC units, which consist mainly of granulite to upper amphibolite grade metamorphic rocks derived from...deposits. The tributaries of Kumbukan Oya drain the upper areas in the north and then they enter the broad...alexandrite from from the the Hematita Hematita mine mine in in Brazil Brazil (AL-HEMA1), (AL-HEMA1), an...alexandrite from from the the old old Tokowaja Tokowaja mine mine in in the the Ural Ural Mountains Mountains (AL-U/K9456) |  | | Book (edition) | | Vesuvius, Italy (12, column 2) and SEMSEYITE, Julcani mine, Huancavelica, Peru (#3, column 2). Color, page...Prof. of Mineralogy, University of Cologne, West Germany; Curator of The Mineralogical Museun1. A dear friend... Mineralogical Museum, University of Cologne, Germany Mineralogical Museum , University of Berne, Switzerland...coating fractures in sandstone at the Fuernrol No. 2 mine, Temple Mountain, Emery County, Utah; also sparsely...Pelican Dives rnine , Silver Plun1e district, and at the Little Emma mine, Clear Creek County; at the Enterprise |  | | Journal (issue) | | D-85238 Petershausen, Germany **Friedenstr. 127, D-75173 Pforzheim, Germany Fig. 1. Dyed natural star...purchased by one of the authors from a dealer in Germany as natural star rubies. The samples ranging from...mines is on the right bank of the Oxus, in the district of Ish Kashrn and on the borders of SHIGNAN, the...RUBY Persian: lot; HINDU: manik? or lal. T h e mine of this gem was not discovered until after a sudden...mines are within twenty miles of Ishkashm, in a district called Gharan, which word signifies caves or mines |  | | Journal (issue) | | spessartine inclusion | Tourmaline from the Cruzeiro Mine, Brazil | Natural diamond showing a âsyntheticâ... Pasadena, USA; Karl Schmetzer, Petershausen, Germany; Dietmar Schwarz, AIGS Lab Co. Ltd., Bangkok, Thailand;...Elisabeth Strack, Gemmologisches Institut, Hamburg, Germany; Tay Thye Sun, Far East Gemological Laboratory...Albert Museum, London; Bert Willems, Gilching, Germany; Bear Williams, Stone Group Laboratories LLC, Jefferson...emeralds (and their simulants) from East Singhbhum District, southern Jharkhand State, India; composites consisting |  | | Book | | and Geology University of WĂŒrzburg WĂŒrzburg, Bavaria, Germany Hartwig E. Frimmel Institute of Geography...and Geology University of WĂŒrzburg WĂŒrzburg, Bavaria, Germany Department of Geological Sciences University...Control Number: 2018945875 © Springer-Verlag GmbH Germany, part of Springer Nature 2020 This work is subject...Azurite crystals, partly replaced by malachite, Tsumeb mine, Namibia; width of view ca. 3 cm; collection H.E...address is: Heidelberger Platz 3, 14197 Berlin, Germany V Preface Thirty-five years ago Siegfried Matthes |  | | Journal (issue) | | acting president Donna Baker, and Board chair Helene Fortunoff in hosting these events. Kathryn Kimmel...mastering the market. Looked at The New York diamond district has long been the center of diamond distribution...Shown here is the recovery plant at the Jwaneng mine in Botswana. Photo courtesy of Debswana. another...(left) delivers Tuesdayâs closing address. Middle: Helene Fortunoff at the closing session. Right: Panelist...GEMOLOGY FALL 2006 19 Below: Corrado Facco, Helene Fortunoff, Paola De Luca, and Eddie Prentice. Center |  | | Report (issue) | | IN AUSTRALIA Cover PictureâThe Argyle Diamond mine Photo by courtesy of Ashton Mines Limited GEOLOGICAL...deposits An exploration case history in the Telfer mine corridor The discovery and evaluation of gold mineralisation...Territory Tertiary to Recent deposits Boddington gold mine Mt Gibson gold deposit M. P. M. M. El-Ansary and...deposit Copper deposits in the Cloncurry-Mt Isa district Copper in South Australia The Cattlegrid copper...exploration in Australia Elura zinc-lead-silver mine, Cobar, N.S.W. Exploration at Dugald River, Queensland |  | | Book (edition) | | these include contributors from Australia, Canada, Germany, Thailand, Vietnam, the UK and the USA, making...extensive fields in the prophetically named Kimberley district of Western Australia promise to be of world importance...First Edition For two decades, an earlier work of mine â Practical Gemmology â has proved a useful elementary...similar geological setting also occur at the Menzies mine in Western Australia and these rocks also have been...oldest amber dates from the Coal Measures in the Upper Carboniferous period 32 Gem Regions about 320 |  | | Book (edition) | | MINERALOGY OF ARIZONA âą Wu!fenite. Red Cloud mine, Si/district, Trigo Mountains, La Paz County, Arizona...Hydrothermal Deposits 63 The Bisbee District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St...Mammoth-St. Anthony Mine, Tiger, Pinal County 78 Uranium and Vanadium Deposits 80 Monument Valley 81 -...Breccia Pipes 87 Pegmatites 88 "Mine Fire" Minerals, United Verde Mine, Jerome Arizona Meteorites PART...uranium and vanadium deposits; "mine fire" minerals at the United Verde mine in Jerome; and Arizona meteorites | | | Book (edition) | | MINERALOGY OF ARIZONA Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona...Hydrothermal Deposits The Bisbee District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St...Mammoth-St. Anthony Mine, Tiger, Pinal County Uranium and Vanadium Deposits 80 Monument Valley 81 63 78...Breccia Pipes 87 Pegmatites 88 âMine Fireâ Minerals, United Verde Mine, Jerome Arizona Meteorites 93 PART...uranium and vanadium deposits; âmine fireâ minerals at the United Verde mine in Jerome; and Arizona meteorites |  | | Book (edition) | | Copper-Related Deposits The Bisbee District Tl1e Mammoth-St. Anthony Mine, Tiger 17 17 21 3. Uranium and...The Cameron Area 24 24 27 4. "Mine Fire" Minerals, United Verde Mine 29 5. Arizona Meteorites 31...16 PART ONE INTRODUCTION Wulfenite. Glove mine, Cottonwood Canyon, Santa Rita Mountains, Santa...79 mine, Gila County. Wayne Darby collection. Jeff Kurtzeman. Wulfenite on mottramite. 79 mine, Gila...pounds of copper Wulfenite on stalactite. Red Cloud mine. Trigo Mountains, Yuma County. Harvard University | | | Book (edition) | | Muineralogy of Arizona Stope in oxide ore, Copper Queen mine, Bisbee. These old workings were probably mined...Copper-Related Deposits The Bisbee District The Mammoth-St. Anthony Mine, Tiger Lee Le 2A 3. Uranium and...The Cameron Area 24 24 Ld 4. âMine Fireâ Minerals, United Verde Mine 29 5. Arizona Meteorites ol...16 PART ONE INTRODUCTION Wulfenite. Glove mine, Cottonwood Canyon, Santa Rita Mountains, Santa... 79 mine, Gila County. Wayne Darby collection. Jeff Kurtzeman. Wulfenite on mottramite. 79 mine, Gila |  | | Book (edition) | | locally found concentrated into the ore deposits we mine and process for industrial metals. These minerals...it appears to an observer looking down upon the upper end, is in Figure 2-16B. It consists of the three-cornered...melting of essen- tially any rock material in the upper mantle. Granitic magmas are derived by partial melting...meltedâand perhaps mixed with basaltic magmaâwithin the upper mantle. Consolidation of Magma Some magmas cool...plagioclase. As crystallization proceeds, the olivine (upper left) reacts with the remaining molten magma to |  | | Journal (volume) | | Senkevichite has been found in the rocks samples from the Upper DaraiPiyoz alkaline massif, which were collected...of strongly folded chloritesericite slates of UpperSilurian age. Within the limits of the deposit,...noted turanite as the most usual vanadate in the upper horizons, in particular, in the Yellow cave. Larsen...Creek region, Eureka district (Pullman and Thomssen, 1999), the Gold Querry mine, Maggie Creek region...two specimens from the Fish Creek region, Eureka district but both are volborthite. Absence of the reliable |  | | Book (edition) | | Leigh McDonald Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa...geographic district names have been replaced with a more descriptive term, metallic mineral district. This...reader to learn more about the geology of the district and to possibly predict the minerals that could...districts. Where possible, the metallic mineral district for each mineral locality is given for the mineral...material was cut parallel to the grain. The Blue Ball Mine, in Gila County, has produced thousands of azurite |  | | Report (volume) | | Mineralogical Association. Springer-Verlag. Berlin, Germany, and New York, N.Y. Copenhagen Univ. Mineralog...Wissenschaften zu Berlin. Akademie~ Verlag. Berlin, Germany. Dissert. Abs.- Dissertation Abstracts. University...Buchhandlung Ferd. Rau. Ohringen, Federal Republic of Germany. Elisha Mitchell Sci. Soc. Jour. - The Journal...Geographie. Verlag. Bonn, Federal Republic of Germany. Ferd. Diimmlers Evolution- Evolution. International...Paris, France. Freiberger Forschungshefte Berlin, Germany. Freiberger Forschungshefte. Frontiers- Frontiers |  | | Book (volume) | | and Political Officer, Southern Shan States. The Upper Burma Gazetteer. Meistersinger. Mekong; Minbu...On the Staff of the Carl Zeiss Factory, Jena, Germany. P. A. K. Prince Peter Alexeivitch Kropotkin...consists of an iron or bronze frame, of which the upper part is fitted with a hollow screw wherein works...only other artists who have risen to eminence. Germany.âA characteristically florid style is here cultivated...square upon the centre of the left breast, the upper edge of the ribbon being even with the first button |
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