 | | Book | | AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree . Khomas Highland...station Garub near Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 ....Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...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 |  | | 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unpublished.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 |  | | Journal (article/letter/editorial) | | the GorobMassiveSulfideProspect, DamaraOrogen,Namibia HORSTH)•USSINGER,* MARTIN OKRUSCH, Mineralogisches...lensesand several smaller sulfide occurrencesat Gorob, Namibia, are hostedby metaturbidites of the Kuise...mineralexploration. TheGorobprospect in theNamibdesertof Namibia consists of five smallmetamorphosed, sedimenthostedmassive...ofpremetamorphic alteration. GOROB MASSIVE SULFIDE PROSPECT, NAMIBIA 73 Variousauthors(e.g.,Miller...intracontinental branch of the Pan-African Damaraorogenof Namibia,about250 km southwest lites,althoughBreitkopfa |  | | Journal (article/letter/editorial) | | metamorphosed, stratiform sulfide deposit Matchless, Namibia By R. KLEMD,Bremen and M. OKRUSCH,W[irzburg*) With...schichtgebundenen Kupferlagersfiitte Matchless, DamaraOrogen, Namibia, ergeben Temperaturen zwischen 550 und 625 ~ und...stratiform sulfide deposit Matchless, Damara orogen, Namibia, yield temperatures between 550 and 625 ~ and pressure...lower pressures, i.e. 3 kbar as deduced from sphalerite barometer, at the same temperatures. From these...geological map of the Damara orogen showing the Matchless mine area (modified after ADAMSON TEICHMANN,1986). Phase |  | | Journal (article/letter/editorial) | | deformation in the Matchless massive sulphide deposit, Namibia N.J. Cook!, R. Klemd-, and M. Okrusch' 1 2 Mineralogisches...chalcopyrite and pyrrhotite. The FeS content of sphalerite ('PFeS) depends, to a large extent on the coexisting...where the sphalerite has been buffered by pyrite and pyrrhotite is application of the sphalerite geobarometer...geobarometer possible. In such cases, the sphalerite compositions have apparently not re-equilibrated during...are consistent with the tectonic history of the region . Investigations concerned with determining the |  | | Journal (article/letter/editorial) | | Settingof the MatchlessBelt Pyritic Copper Deposits,Namibia JORGH. BREITKOPF Universityof the Witwatersrand...mphibolitebelt in the Damara orogenin central Namibia. The amphibolitesrepresent metamorphosedtholeiitic...depositshas its own stratigraphicsectionthrough the Gorob ore lens is characteristics, therearemanysimilaritiesfromone...rocksdip at area to another.We usethe exampleof the Gorob 40 ø to the northwest.Facing criteria, especially...(pebbles) 10m sfaur - gar - bl - ky schisf The Gorob ore lens is capped by magnetite quartzite, extendsabout |  | | Journal (article/letter/editorial) | | particular, two analyses of a sample from the Ore Knob mine, North Carolina (no. 11119/29), yield 6liB values...Elizabeth mine, Vermont Devonian(?) Amphibolite 1, 2 Cu, Zn, Ag Cu, Zn Elizabeth mine, Vermont Pike...Pike Hill mine, Vermont Devonian(?) Devonian(?) Amphibolite Amphibolite 1, 2 2, 3 Cu, Zn Cu, Zn ... Ely mine, Vermont Ore Knob mine, North Carolina Devonian(?) Late Proterozoic Amphibolite Amphibolite...Massachusetts Pb, Zn, Ag Sullivan mine, British Columbia Pb, Zn, Ag Sullivan mine, British Columbia Cu, Co, Au |  | | Journal (article/letter/editorial) | | MatchlessMetamorphosedMassiveSulfideDeposit, SouthWest Africa/Namibia: Wall-Rock Alteration during SubmarineOre-Forming...Matchlessamphibolitebelt in the upperProterozoicDamaraorogen(SWA/Namibia). In the footwallof the ore shootsare pyrite-b...Matchless mine area, and depositsrelated to the MatchlessMember in the up500 m north of the mine, the major...Shaft , RK lo6 '* ShOo t Farm !2ø40tS eRK4 ,,•9 Mine 16050' E [•1 MetapehtlC Kulseb schists ':'"'":•...Matchlessmine (simplifiedfrom GeologicalSurveyof SWA/Namibia,Windhoek, unpub. geologicmap) with sample localities |  | | Journal (article/letter/editorial) | | Tooeleite, a new mineral from the U.S. Mine, Tooele County, Utah FABIEN P. CESBRON AND SIDNEY A. WILLIAMS...arsenopyrite, scorodite, and jarosite at the U.S. Mine, Tooele Country, Utah. Analysis by electron microprobe...species but was known artificially. Subsequently the mine access was sealed, but a small area rich in the...Occurrence Tooeleite was found on waste dumps of the U.S. Mine at Gold Hill, Tooele County, Utah. The mineral occurrences...described by Nolan (1935). During World War II, the U.S. Mine produced gold and arsenic from pyrite-arsenopyrite |  | | Journal (article/letter/editorial) | | terranes of Broken Hill, New South Wales, the Gorob mine in Namibia, the Aggeneys district of Namaqualand, and...volumes in Grenville gneisses of the Frontenac Axis region of southeastern Ontario, concluded that “ ... the...Broken Hill, but from the environs of the Aggeneys mine, Namaqualand. Beds 1 and 2 of Table 3 and Figure...volcanic-exhalative pyritic copper–zinc deposit at the Gorob mine, Namibia This sample is characterized by particularly...characteristic of the metamorphosed exhalative lens at the Gorob and associated orebodies, and indeed of many VMS |  | | Journal (issue) | | MINERALS Red Lead Mine: J. Halpern specimen. J. Scovil photo. In this issue also: a new chapter J...26 Miner George Quist in front of the Red Lead mine portal after a long day of specimen extraction....the Red Lead mine, Tasmania, Australia. Thanks to a successful partnership between mine owner Shane Dohnt...and specimen mining company Collectors Edge, the mine was reopened for specimen mining in 2013. The last...recent huge “Red River Pocket” finds in the Adelaide mine, the Brilliant red-orange color, superior luster |  | | Book | | Republic, 6 cm). Figure 1.2 Halite crystals (Namibia, 5.8 cm). 6 section devoted to the display of...(field of view 8 cm). Figure 1.3 An opencast iron ore mine (Postmasburg, South Africa). 7 microscopes, or...in groups 8–12, show marked deviation. In this region of the Periodic Table, electronegativity increases...bonded substances, the electrons are confined to the region between the nuclei of the bonded atoms and they...structure (A) Zinc sulphide (ZnS) is the mineral sphalerite or zinc blende and is an important source of | | | Book | | Republic, 6 cm). 6 by Figure 1.2 Halite crystals (Namibia, 5.8 cm). section devoted to the display of such...about identifying a Figure 1.3 An opencast iron ore mine (Postmasburg, South Africa). microscopes, or chemically...in groups 8-12, show marked deviation. In this region of the Periodic Table, electronegativity increases...substances, the electrons are confined to the region between the nuclei of the bonded atoms and they...structure Zinc sulphide (ZnS) is the mineral sphalerite or zinc blende and is an important source of |  | | Report (issue) | | Wet Shaft, Tsumeb mine (photograph by Dr Gabi Schneider, Geological Survey of Namibia) MINISTRY OF MINES...GEOLOGICAL SURVEY OF NAMIBIA Director: B.G. Ho al BULLETIN 1 Type mineralogy of Namibia by Vaughan C. Daltry...the Geological Survey P.O. Box 2168, Windhoek, Namibia Price Local (+GST) Abroad (Post Free) R20.00 R25... ______ ........ Abstract The type mineralogy of Namibia is reviewed. One hundred and thirty-nine (139)...Twenty-three (23) unnamed phases are also listed. Namibia ranks second to Zaire as the most productive African |  | | Journal (article/letter/editorial) | | hanging wall. Zonation of metal elements in the Ashele mine is one of typical volcanic-related exhalative Cu-Zn...been recognized in the Ashele mine, but only pyrite, chalcopyrite, sphalerite, tetrahedrite, galena, barite...and gold is expected in the vicinity of the Ashele mine and surrounding area. Since the discovery, the Ashele...(Chen W. A. et al., duced in the east of the Ashele mine, and a lot of gold 1989; Chen Y. Z.,1989; Chen Y...have been found along its contact zone. The Ashele mine is located at 48°15’16”N.Lat. and 86°18’ above features |  | | 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...Pb-Zn-Cu-Ag-V Deposits of the Otavi Mountain Land, Namibia . . . . . . . . . . . . . . . . . . . . . . . |  | | 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 |  | Moreno, C., Sáez, R., González, F., Almodóvar, G., Toscano, M., Playford, G., Alansari, A., Rziki, S., Bajddi, A. (2008) Age and depositional environment of the Draa Sfar massive sulfide deposit, Morocco. Mineralium Deposita, 43 (8) 891-911 doi:10.1007/s00126-008-0199-x | Journal (article/letter/editorial) | | most extensive and representative outcrops in the region, i.e., Central, Rehamna, and Jebilet Massifs, constitute...rocks that host the massive sulfide deposits of the region, including that of Draa Sfar. The rocks have been...Deposita (2008) 43:891–911 90 vol.% of the ore. Sphalerite, chalcopyrite, galena, arsenopyrite, marcasite...crystals, by alternating of monominerallic layers of sphalerite and galena, and by the intercalation of lenticular...uneven distribution at the scales of ore lenses and mine district. Our own observations at the Sidi M’Barek |  | | Book | | sulphides such as pyrite, galena, chalcopyrite, sphalerite, marcasite, tetrahedrite, bornite, arsenopyrite...contain gold, galena, chalcopyrite, pyrite, sphalerite, bornite and tetrahedrite. Epithermal deposits...learn. Copper is mined from this large open-pit mine at Bisbee, Arizona, USA. Bisbee is one of the world’s...you are at the right place — the working face of a mine is a noisy dusty scene and tiny specimens only...allowed into a working mine. The collector will usually do best by prospecting the mine dumps or keeping |  | | Journal (article/letter/editorial) | | copyrite ± sphalerite mineralization in the Besshi-type deposits versus pyrite-sphalerite-galena-chalcopyrite-gold...earthquakes during the 20th century (Ulomov and the GSHAP Region 7 Working Group, 1999; Lee et al., 2003; Buslov...(pyrite, pyrrhotite, chalcopyrite, magnetite, minor sphalerite); (6) overwhelming dominance of Cu over Zn, with...(up to 10%) and pyrrhotite (60–99%), with rare sphalerite, pyrite, and magnetite. Copper (1.2%) dominates...mineralogy (pyrite, pyrrhotite, chalcopyrite, sphalerite, and magnetite); (5) overwhelming dominance of |  | ZHENG, Y. C., GU, Lianxing, TANG, Xiaoqian, WU, Changzhi, LI, Chunhai, LIU, Sihai (2011) Geology and Geochemistry of Highly Metamorphosed Footwall Alteration Zones in the Hongtoushan Volcanogenic Massive Sulfide Deposit, Liaoning Province, China. Resource Geology, 61 (2) 113-139 doi:10.1111/j.1751-3928.2011.00154.x | Journal (article/letter/editorial) | | been mined Mine shut down Mine shut down Mine shut down Mine shut down Mine shut down Mine shut down ...minerals are dominated by pyrite, pyrrhotite, sphalerite and chalcopyrite in approximate proportions of...Cu grades (2.51 to 3.50 wt%) are distributed at mine levels above 0 m, whereas those with higher Zn grades...(CDT). No granite intrusions have been found in the mine area. There are, however, numerous diabase dikes...that it is continuously distributed in the whole region (Zhang et al., 1984; Fang, 1992; Deng, 1994; Fang |  | | 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...bismuth. 4. Manganese-iron-magnesium carbonate, sphalerite, galena, tetrahedrite, fine-grained pyrite and...generation of pyrrhotite (as ex-solution bodies in the sphalerite), jamesonite, canfieldite, pyrargyrite, franckeite |  | | Book | | museum quality but many minerals can be found on mine dumps or can be purchased or traded. After introducing...show octahedral cleavage (four directions) and sphalerite six directions. The tetragonal system often shows...for changes of lustre in parallel bands (as in sphalerite) or for lamellae (polysynthetic twinning) where...over its beer: to go underground in a non-working mine is sheer folly unless you are accompanied by someone...(preferably several people) who really knows the mine. Before venturing into the field serious collectors |  | | Book | | (asbestos), scaly (haematite-specularite), massive (sphalerite), or dendritic or flatly arborescent (psilomelane)...fluorite, garnets, magnetite, pyrite, galena, sphalerite, tetrahedrite, cuprite, and some native elements...‘Copper Belt’ in Zaire and Zambia; and in Bura-Bura Mine, Australia. Sedimentary copper is found in schists...also found there on 26 January 1905 in the Premier Mine. For several decades these South African diamond...is found in pegmatites (in California, USA, and Namibia), and in some volcanic rocks where it forms part |  | | Book | | (asbestos), scaly (haematite-specularite), massive (sphalerite), or dendritic or flatly arborescent (psilomelane)...fluorite, garnets, magnetite, pyrite, galena, sphalerite, tetrahedrite, cuprite, and some native eJements...'Copper Belt' in Zaire and Zambia; and in Bura-Bura Mine, Australia. Sedimentary copper is found in schists...also found there on 26 January 1905 in the Premier Mine. For several decades these South African diamond...is found in pegmatites (in California, US~ and Namibia), and in some volcanic rocks where it forms part |
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