 | | Journal (article/letter/editorial) | | MAY JUNE, 1959 OCCURRENCE OF JORDANITEIN THE OTAVI MOUNTAINS, SOUTHWESTAFRICA N. L. MenrHAM, Grootfontein...) West Africa. of South been found at Kupferberg in the Otavi Mountains chemical and occurrence The following...describesits mode of composition. The Kupferberg copper prospect lies in the Otavi Valley about 40 miles South...Stage of the Otavi System make up the country rock which is characterised at Kupferberg and elsewhereby...sulfide minerals at Kupferberg include sphalerite, tennantite, pyrite, galena,enargite and jordanite with |  | | Journal (article/letter/editorial) | | base metal mineralization in the Otavi Mountain Land, Northern Namibiaâa review and regional interpretation...GĂźnzel b a b University of Namibia, Private Bag 13301, Windhoek, Namibia Ongopolo Mining Ltd., Main Street...Street, P.O. Box 40, Tsumeb, Namibia Received 16 May 2004; accepted 10 April 2006 Available online 4...Sediment-hosted base metal sulfide deposits in the Otavi Mountain Land occur in most stratigraphic units...Supergroup, including the basal Nosib Group, the middle Otavi Group and the uppermost Mulden Group. Deposits like |  | | Book (edition) | | ⢠Sphalerite-galena-pyrite-isocubanite-fahlore-enargite, ⢠Stibnite-realgar-orpiment-marcasite-cinnabar...29 polysynthetic Rathite Idaite Luzonite Enargite Famatinite Reflection Colour & Ă Reflectance... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...of cuprite (bluish grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co.,...internal reflections); MadenkĂśy Mine, Ăayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL |  | | Journal (article/letter/editorial) | | 69 Enargite. By L. J. SPs~eEIi, B.A., F.G.S., Assistant in the Mineral Department of the British Museum...i~he following is a complete list of lhe forms of enargite ; t h o s e present on the British Museum specimens...i t c " ; ,, 81~176 81~ 80~176 81~176 ' ' ENARGITE. 78 Also the published measurements for this...twins of enargite. Groth mentions as doubtful, twins on a maerodome on crystals from Emma mine, Utah. Parallel...Barytes.--On a maeropinacoid face of a crystal of enargite from Famatina was a minute tabular crystal of |  | | Journal (article/letter/editorial) | | 69 Enargite. By L. J. SPs~eEIi, B.A., F.G.S., Assistant in the Mineral Department of the British Museum...i~he following is a complete list of lhe forms of enargite ; t h o s e present on the British Museum specimens...i t c " ; ,, 81~176 81~ 80~176 81~176 ' ' ENARGITE. 78 Also the published measurements for this...twins of enargite. Groth mentions as doubtful, twins on a maerodome on crystals from Emma mine, Utah. Parallel...Barytes.--On a maeropinacoid face of a crystal of enargite from Famatina was a minute tabular crystal of |  | | Book | | North TsumebSpecial The Otavi Mountainland The Central Northern to Northwest Region including Damaraland...s Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits...__ Republic of Namibia The President State House W°Ntdhoek FOREWORD Namibia is endowed with an...from near and far. Fine mineral specimen from Namibia are displayed in all the famous natural science |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | | Book (edition) | | 11-60 Wurtzite II/C.13-10 Greenockite II/C.13-30 Enargite II/C.14-10 II/C.14-20 Cubanite II/C.14-30 Sternbergite...(yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(greenish grey), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(bluish grey shades), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // 8 Gold A ...sample - photo A), dolomite (dark grey); Harstigen Mine, Pajsberg, Filipstad, Värmland, Sweden [j]; Nic |  | | Book | | of the granite-gneissic Precambrian rocks of the region and of manganese mobilized by leaching of basalts...controlled by the structurally superimposed unwrapping region. This engendered the decisive conditions in the...granitized material itself. The wide country rock-region may in many cases be a significant contributor...the new mineral (metasome) or may diffuse into a region of increasing mobility, culminating in a solution...interlamellar magnetite. The most interesting patterns of enargite replacement by pyrite are shown in Fig. 48. Considering |  | | Journal (issue) | | crystals on quartz from an abandoned pyrophyllite mine near Snow Camp, Alamance County, North Carolina...it. The efforts of clubs to promote safety during mine and quarry visits should be stressed. As a good...assemble a suite of properly labelled specimens for the mine or quarry office. Many of us know of localities...col lection of these fine stibnites from this new mine near Felsobanya. The xls on these are much larger...at that time geologist at the ASARCO underground mine at Quiruvilca, Peru, presented to the Mineralogical |  | | Book | | deposits in Texas and Louisiana (USA), Tarnobrzeg region and Mach6w (Poland), Karakum Desert and Volgaland...(217), marcasite (437) ⢠Occurrence: common; Clay region in Alabama (USA); Harz (GDR), FRG, Botogol deposit...Caucasus - crystals up to 1.5 cm (USSR), Getchell Mine - Nevada (USA) â˘Application: ore (extraction of...chalcocite (68), chalcopyrite (185), pyrite (436), enargite (187) ⢠Occurrence: frequent; hydrothermal covelline...Butte - Montana - fine crystals (USA), Tsumeb (Namibia), Bor (Yugoslavia), Baita (Romania), in Mansfeld | | | Book | | illustrated Encyclopedi of the Worldâs Rocks and Mine re L A R E N MI OF THE WORLD Rudolf Duda and...deposits in Texas and Louisiana (USA), Tarnobrzeg region and Machow (Poland), Karakum Desert and Volgaland...(217), marcasite (437) e Occurrence: common; Clay region in Alabama (USA); Harz (GDR), FRG, Botogol deposit...Caucasus â crystals up to 1.5 cm (USSR), Getchell Mine â Nevada (USA) e Application: ore (extraction of...chalcocite (68), chalcopyrite (185), pyrite (436), enargite (187) e Occurrence: frequent; hydrothermal covelline |  | | Book | | papers and 19 geological maps in Western Australia, Namibia and Greenland. Throughout his career, which has...4.3.9 The Brandberg West Greisen Vein Systems, Namibia . . 4.3.10 The Kalguta Mo-W-Be-Bi Greisen System.... . . . . . . . . . . . . . . 6.5.1 Navachab, Namibia. . . . . . . . . . . . . . . . . . . . . . . ....Cu Deposits of the Matchless Amphibolite Belt, Namibia . . . . . . . . . . . . . . . . . . . . . . . 7...5 The Pb-Zn-Cu-Ag-V Deposits of the Otavi Mountain Land, Namibia . . . . . . . . . . . . . . . . . . |  | | Book | | places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are...(1940). 12 T H E ORE MINERALS FIG. 4 80 X Mouat Mine, Stillwater Valley, Montana RAMDOHR From a border...("solutions", "melts", and " v a p o r s ' " in this region are not sharply distinguishable). However, this...fluid (supercritical), pass below 400 °C into the region of liquid aqueous solutions. At the same time their...minerals are present everywhere. b) Chalcocite-enargite-tennantite group. Characterized by marked decrease |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]â˘6HzO |  | | Journal (issue) | | miners drill holes in the rock at Taxco silver mine in Mexico. Right: North Sea drilling rig 'Claymore-A'...manganese, plutonium and uranium. The Minas Gerais region north of Rio de Janeiro has mines that contain...iron ore, mercury, potash and sulphur. The Mogok region in northern Burma, in and around the lrrawaddy...particularly in the Ojuela result of some chemical Mine in Durango State. reaction that has occurred Significant...found outside Windhoek in It is commonly found Namibia; in Nevada and San lining cavities in the yellow |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing |  | | Book | | K(U02)As04*3H20, Tet. Vitreous yellow. Fuemrole mine, Temple Mt., Emery Co., Utah, USA. H= 2-3, Djjj=...grey, bluish-grey, yellow, light green. Langban mine, Filipstad (near), Varmland, Sweden. H= 5, Djjj=3...5As30ig, E Rhom. Translucent blue-green. Terres mine, St. Ausdell, Cornwall, England and/or Johanngeorgenstadt...804)3 â˘nH20, ÂŽ Hex. Transparent bluish. Lapis-lazuli mine, Sar-e-Sang, Badakshan, Afghanistan. H= 5.5-6, Djj4=...*21120, Mon. Vitreous colorless, white. Dutoitspan mine, Kimberley, South Africa. H= 4.5, Djjj= 2.630, D( |  | | Journal (article/letter/editorial) | | Dyscrasite Edingtonite Electrum Embolite Emplectite Enargite Enstatite Epidote Epistolite PbSe Mg5(Al,Cr)2Si3O10(OH)8...the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...make a contribution to the cultural heritage of a region and may successfully be used in exploration (Mascaro...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting | | | Journal (article/letter/editorial) | | Dyscrasite Edingtonite Electrum Embolite Emplectite Enargite Enstatite Epidote Epistolite PbSe Mg5(Al,Cr)2Si3O10(OH)8...the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...make a contribution to the cultural heritage of a region and may successfully be used in exploration (Mascaro...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting |  | | Book (volume) | | and the corresponding citation (Hudson Bay 309 mine). in Ref. 4, line Z, for 670 read 676. 310 in...say that this guarantee did much to deterrepaid. mine the award of the grant. To Mr. W. 0. Wiley, Chairman...especially since these language groups. ^^ and the region or country is Roumania. Alteration 9. In the...pegmatite minerals together with scheelite (Natas mine, South- West Africa); in contact metamorphic deposits... In quartz veins (Porcupine, Ontario; Homestake mine. Lead, South Dakota; Morro Velho, Minas Geraes); |  | | Journal (volume) | | Mexico. Eight-sided crystals from the Traversella mine, Piedmont, Italy. .&. crystals. It can also be...language. Rubies are also found in the Chantabiri region of Thailand and around Pailin and Channop in Cambodia...An example of natural silver, from the sarrabus region of Sardinia. CHARACTERISTICS Silver is white in...Gennaro Cathedral, Naples. silver from the sarrabus region of Sardinia. it was originally found in a pure...available. The main source was once the Kongsberg Mine in Norway, but this closed in 1956. Man has, however |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Spotsylvania Co., and Partridge mine, Orange Co., VA, and at Dahlonega, GA; Homestake mine, Lawrence Co., SD; Silver...Lake Co., Breckenridge(*), Summit Co., Ground Hog mine(*), Gilman Co., Silverton and Telluride, San Juan...Ledge mine, Nevada Co., Jamestown, Tuolumne Co., Colorado quartz mine, Mariposa Co., Bonanza mine, Trinity...Nelson, Westland, Otago, and Southland. Emperor mine, Vatukuola, Fiji. Mt. Kare, Papua New Guinea. In...localities in Peru, Bolivia, and Ecuador; Morro Velho mine, Nova Lima, MG, Brazil. sm DI:90, R:321, P&J:281 |  | | Book (volume) | | Deposits The Iron Ore Deposits of the Arendal Region in Norway of Krivoi-Rog, in Southern Russia Iron...Deposits of Pitkaranta in Finland 4. Kallmora Silver Mine at Norberg, in Sweden 5. The Deposit of Schneeberg...Iron Ore Deposits in the Zechstein Dolomite of the Region of Schmalkalden 6. The Iron Ore Deposits of Amberg...Hungary 5. The Contact Deposits of the Christiania Region 6. The Ore Deposits of Traversella and Brosso,...course of time. materials which were thrown upon mine dumps as useless, sidered as a mere nuisance in |  | | Book | | .................................. ....... 78 Namibia ........... ..... ................. ..... .......vvastewater during environmental reclamation at a mine that has ceased production. The following statistical...Saskatchewan, is the world's largest high-grade uraniu1n mine. The ore from that ,nine is crushed and treated...to start production at the Talvivaara Ni-Zn-Cu-Co mine, ,vhere bio-heap leaching is used to extract metals...Production is expected to grow when the Four Mile ISL mine comes on strea1n, and planned expansion of Olympic |
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