 | | Journal (article/letter/editorial) | | base metal mineralization in the Otavi Mountain Land, Northern Namibiaāa review and regional interpretation...GĆ¼nzel 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...middle Otavi Group and the uppermost Mulden Group. Deposits like Tsumeb (PbāCuāZnāGe), Kombat (CuāPbāZn) |  | | 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 WĀ°Ntdhoek FOREWORD Namibia is endowed with an...from near and far. Fine mineral specimen from Namibia are displayed in all the famous natural science |  | | Journal (article/letter/editorial) | | MITT.ĆSTERR.MINER.GES. 148 (2003) THE OTAVI MOUNTAIN LAND IN NAMIBIA: TSUMEB, GERMANIUM AND SNOWBALL EARTH...Neoproterozoic carbonate successions in the Otavi Mountain Land, Namibia, host a large number of polymetallic...Springs deposits, and are compared to the ores of Kombat and Berg Aukas. At Tsumeb, local pockets of germanite...structure. Massive Cu ore at the Khusib Springs mine is composed of tennantite, enargite, galena and...As, Sb, Ag, Ga, Mo, Sn, W and Re. Cu-Pb ores at Kombat and Zn-Pb ore at Berg Aukas generally carry lower |  | | 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) | | Although the collection focuses primarily on the Tsumeb mine and the Kalahari manganese field, other āclassicā...are also represented, such as Klein Spitzkoppe, Kombat, Tschudi, Erongo, Onganja, Berg Aukas, Rosh Pinah...wolframite specimens from the Krantzberg mine close to Omaruru in Namibiaāthat caught his sonās fancy. During...Beeshoek mine close to Postmasburg in the Northern Cape Province. He also visited Black Rock mine, located...on schorl, 2.9 cm, from the Erongo Mountains, Namibia. Figure 3. There are three exceptional Tsumeb |  | | Journal (article/letter/editorial) | | zinc-lead deposits in Neoproterozoic units of Namibia: Lead isotopic and geochemical evidence Received:...Skorpion in the Pan-African Gariep Belt, southwestern Namibia, as well as that of galena from minor occurrences...similar to those found in the wider region of southern Africa (Otavi Mountain Land) and eastern Brazil...provinces in the Otavi Moutain Land in the north and around Rosh Pinah in the south of Namibia being the principal...areas of current mining activities (Fig. 1). In the Otavi Mountain Land, two deposit types have been distinguished |  | | Journal (article/letter/editorial) | | University] at 05:27 17 August 2017 Tsumeb Mine Namibia BRUCE CAIRNCROSS Department of Geology University...Tsumeb in Namibia; prepared by William Besse. Figure 2 (left).Tsumebite on drusy smithsonite and azurite...azurite, 5.5 cm, Tsumeb mine, Namibia. This specimen has been quantitatively verified and is one of the finest...lustrous emerald-green crystals implanted on smithsonite, as originally described. Crystals of the tsumebite...Tsumeb mine. The typespecimens were associated with azurite, cerussite, malachite, and smithsonite. Anthony |  | | Catalog/List | | LDec~0080xford~--- 4 COBALTIAN SMITHSONITE, Tsumeb, Otavi, Namibia. Rather fine pink lustrous sharp...label. 53x45x25mm. Ā£48 8 CUPRITE, Kombat Mine, Otavi, Namibia. Superb reddish purple xtls to 4mm. Nick...Colln. nx54x40mm. Ā£125 1 AZURITE, Copper Queen Mine, Bisbee, Arizona, USA. Bright gemmy blue sprays...superb display from this classic mine. 72x55x34mm. Ā£55 5 WULFENITE, Glove Mine, Santa Cruz Co., Arizona, USA...64x48x24mm. Ā£52 9 LINARITE,BROCHANTITE, Conejo Rampante Mine, Atacama, Chile. Large and richly invested with |  | | Catalog/List | | it collected when the Tsumeb Mine (as well as other mines of the region) were still in production in...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably...desert-like "Sperrgebiet" area of the southern coast of Namibia, with its fabulous wealth of gem diamonds. One...Ianās interest stems from the family trips to Namibia, including the mines of Tsumeb. He worked with... 57001 Azurite Level 8, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia If the attachment point on the |  | Hitzman, M. W., Reynolds, N. A., Sangster, D. F., Allen, C. R., Carman, C. E. (2003) Classification, Genesis, and Exploration Guides for Nonsulfide Zinc Deposits. Economic Geology, 98 (4) 685-714 doi:10.2113/gsecongeo.98.4.685 | Journal (article/letter/editorial) | | zinc metal was produced almost entirely from smithsonite-bearing āoxideā (nonsulfide) ores utilizing WƤlz...centuries in metallurgical beneficiation of smithsonite ores containing 10 to 20 percent Zn and complex...sulfide-bearing deposits and are formed principally of smithsonite and/or hemimorphite. Three subtypes are recognized:...zinc-bearing minerals present are generally smithsonite, hemimorphite, hydrozincite, and sauconite (Fig...conditions typical in a weathering environment, smithsonite is the least soluble of these minerals (Takahashi |  | | Journal (issue) | | by R. Z. Kothavala Rare minerals of the Kombat mine, Namibia ................................ 421 by....439 by S. Petrussenko Minerals of the Beltana mine, Puttapa, South A ustralia 449 by P. Elliot Columns...ichigan 49930 (906) 482-9560 Michigan native copper; mine owner; wholesale, retail 411 Museum o f Geological...stilbite on the specimens were typical of that region. Bill Birch (1977) similarly encountered cavansite...striking a deal with the quarry owner for the rights to mine specimens. Sparse sprays of cavansite encountered |  | | Book (volume) | | Acanthite San Juan de Reyes Mine, Guanajuato, Mexico, 52 Adamite Ojuela Mine, Mapimi, Durango, Mexico,...(Cuproadamite with Ferrolotharmeyerite) Tsumeb Mine, Tsumeb, Namibia, 22 Apophyllite (on Stilbite) Jalgaon, Maharastra...Malachite) Liu Feng Shan Mine, Anhui Prov., China, 18 (& Malachite) Milpillas Mine, Sonora, Mexico, 32, 38-39...Quartz) Yaoganxian Mine, Chen Zhou, Hunan Prov., China, 56 Calcite (on Fluorite) Elmwood Mine, Elmwood, Tennessee...India, 40 (on Copper) Quincy Mine, Houghton Co., Michigan, 49 Wenshan Mine, Wenshan Autonomous Pref,, Yunnan |  | | Journal (issue) | | the Unificada mine, Potosi, Bolivia. Top right: Benitoite, 2 cm, from the Benitoite Gem mine, California...NāChwaning I mine, Kuruman, South Africa. Bottom right: Mimetite, 2.7 cm, from the Tsumeb mine, Namibia. Back...Record: (1) Stephanite, Husky mine, Canada. (2) Wulfenite, Rowley mine, Arizona. (3) Diaspore twin, Pinarcik...Adelaide mine, Tasmania. (5) Andradite, Antetezambato, Madagascar. (6) Calcite, Mashamba West mine, Congo...Afghanistan. (8) Scorodite, Tsumeb mine, Namibia. (9) Shigaite, NāChwaning II mine, South Africa. v This special |  | Boni, M., Terracciano, R., Evans, N. J., Laukamp, C., Schneider, J., Bechstadt, T. (2007) Genesis of Vanadium Ores in the Otavi Mountainland, Namibia. Economic Geology, 102 (3) 441-469 doi:10.2113/gsecongeo.102.3.441 | Journal (article/letter/editorial) | | 441ā469 Genesis of Vanadium Ores in the Otavi Mountainland, Namibia MARIA BONI,ā Dipartimento di Scienze... mottramite, and vanadinite) in the Otavi Mountainland, Namibia, once were considered the greatest vanadium...surfaces in carbonate rocks of the Neoproterozoic Otavi Group, which already contained primary sulfide orebodies...orebodies (Berg Aukas type). The V deposits the Otavi Mountainland represent a special low-temperature...been known to exist in the northern areas of the Otavi ā Corresponding author: e-mail, boni@unina.it *Present |  | Schneider, Jens, Boni, Maria, Laukamp, Carsten, BechstƤdt, Thilo, Petzel, Volker (2008) Willemite (Zn2SiO4) as a possible RbāSr geochronometer for dating nonsulfide ZnāPb mineralization: Examples from the Otavi Mountainland (Namibia) Ore Geology Reviews, 33 (2) 152-167 doi:10.1016/j.oregeorev.2006.05.012 | Journal (article/letter/editorial) | | ZnāPb mineralization: Examples from the Otavi Mountainland (Namibia) Jens Schneider a,ā, Maria Boni b,c ...Germany d Geological Survey of Namibia, 1 Aviation Road, Windhoek, Namibia Received 12 September 2005; accepted...Berg Aukas and Abenab West deposits, Otavi Mountainland (Namibia), which are hosted by Neoproterozoic...Nonsulfide deposits; Willemite; Geochronology; RbāSr; Namibia 1. Introduction Oxidized ores from nonsulfide...Mt @ 20 to 25% Zn; Berg Aukas and Abenab West, Namibia, ca. 3.5 Mt @ 15 to 25% Zn; and Beltana, Australia |  | | Journal (article/letter/editorial) | | 44118 janet_clifford@att.net Leadhillite Tsumeb, Namibia O xide-zone minerals present the collector with...quantities of wonderful carbonates such as azurite, smithsonite, and cerussite. These zones are also known to...size, such as those found uniquely at Tsumeb, Namibia. The leadhillite discovery at Tsumeb was world...other exotic oxidized zone in an as-yet-undeveloped mine. For now, however, Tsumeb holds top honors for the...name leadhillite in 1832, establishing the Susanna mine, Leadhills, as the type locality (Dana 1896). There |  | | Journal (article/letter/editorial) | | Cardiff CF102HH, Wales 2 Geological Survey of Namibia, Windhoek Abstract: The Tsumeb polymetallic carbonate-hosted...carbonate-hosted replacement deposit in northern Namibia, although now closed, is a world-renowned deposit...these minerals. Mineralisation is hosted in the Otavi Dolomite and the main ore body was a pipe that comprised...through the deposit and during operations into the mine workings, even during early mining, often with different...collections housed in the Geological Survey of Namibia include specimens collected by Hans Schneiderhƶhn |  | | Journal (issue) | | von Predazzo in Italien ā¢ Tsumebit von Gross Otavi, Namibia ā¢ Neufunde Axinit und Epidot in Peru ā¢ USA-Museen:...bei Halle a.d. Saale 118 Tsumebit von Gross Otavi, Namibia 130 Neue Mineralien 134 Neue Funde von...Stufe mit gediegenem Lockensilber von der Bulldog Mine, Creed Mineral County, Colorado. Breite 6,2 cm ...schon von vielen sehnsĆ¼chtig erwartete neue Buch NAMIBIA n -total Ć¼berarbeitet op aktuell mit allen neuen...zahlreiche ungewƶhnliche Bergkristalle aus der Region Damara in Namibia.Mehrfach schon reiste Stefan |  | Kamona, A. F., LĆ©vĆŖque, J., Friedrich, G., Haack, U. (1999) Lead isotopes of the carbonate-hosted Kabwe, Tsumeb, and Kipushi Pb-Zn-Cu sulphide deposits in relation to Pan African orogenesis in the Damaran-Lufilian Fold Belt of Central Africa. Mineralium Deposita, 34 (3) 273-283 doi:10.1007/s001260050203 | Journal (article/letter/editorial) | | Kabwe (PbZn) and Tsumeb (Pb-Zn-Cu) in Zambia and Namibia, respectively, have been measured and found to...Kamona (&) University of Namibia, Science Faculty, Private Bag l3301, Windhoek, Namibia J. LeĆveĆque Centre...mean l-value of 10.25 Ā 0.12 in the Copperbelt region of Zambia and the Democratic Republic of Congo...deposit in Namibia which are shown to be related to upper crustal source rocks in the region. The isotopic...(Cu3-xGexFeS4). Secondary quartz, willemite, cerussite, smithsonite, goethite, and hematite, as well as a large number |  | | 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 |  | | Report (issue) | | Cover Smithsonite slice and egg, 5.8 and 2.7 cm tall Masua Mine, Carbonia-lglesias, Sardinia, Italy...Graeber collection Title page Smithsonite, 9.2 cm wide 400 Foot Level, Kelly Mine, Magdalena District Socorro...Minette) Both photos are by Jeff Scovil. No. 13: Smithsonite Think Zinc! ISBN 978-0-9790998-6-1 Publisher...org Printed in the United States of America Smithsonite Think Zinc! Contributors Bill Birch, Bruce Cairncross...ro Smithsonite froļæ½Tsumeb and Ber Smithsonit Magdalena Dis Smale collecti I photo Smithsonite after |  | | Journal (article/letter/editorial) | | Tsumeb Specimen Mining Ltd. P.O. Box 344 Tsumeb, Namibia b-nicolson @hotmail.com IAN R. BRUCE Crystal Classics...azurite@iafrica.com.na In 1996 the famous Tsumeb mine was shut down and allowed to flood, seemingly ending...specimens has at least some familiarity with Tsumeb, Namibia. For most, it is the source of the finest examples... a challenge, and a dream. Unfortunately, every mine, no matter how great, has a finite life that can...Tsumeb mine, the town of Tsumeb just beyond and to the left of the mine complex, and the Otavi Mountains |  | | Report (issue) | | 16.47 83.53 Total 100.15 100.00 (1) Tsumeb, Namibia. (2) PbCO3 . Mineral Group: Aragonite group. ...constitute an important ore. Association: Anglesite, smithsonite, malachite, azurite, phosgenite, pyromorphite...fine crystals include: from the Friedrichssegen mine, near Braubach, Rhineland-Pfalz, Germany. At PrĢıĢbram...Leadhills, Lanarkshire, Scotland. From the Frankmills mine, Christow, Devon, England. In the Rossignol vein...Touissit mine, near Oujda. Superb crystals and twinned groups at Tsumeb and in the Kombat CuāPbāAg mine, 49 |  | | Catalog/List | | "x"//8;,. * CR-901\ of dendr.itic Davis D:!ardorf Mine, Illinois cover this spec.irrcn 4"x2 1,"x2". picces...Quc1rlz <:Il l"-lck. DSG-43 CRCX:Ol'[T. !led Lcad Mine, D11nd<1s, T<1s11Unia 32.00 Spcci11tĀ·11 consists...lo '," 10119. Showy. DSG-59 CROCOlTE Red Lcad Mine, Dundc1s, Tasn,mia Li1mnile rPcJtrix 2-S/8"xl-7/8"xl...lennint1tion:-;. Showy. 32. 00 CRO::::Ol'l'E !ed Lead Mine, DundJS, TdSn\3,ni.:i Linonile lffitr.ix )-5/B"xl~"xl...10119. Bright ond showy. 22 .00 CHOCOITE Red Lead Mine, Dunda,;, 1',1,-;1nmio Bn.""11 lo black Lirronite |  | | Journal (article/letter/editorial) | | ENGLAND, SW, Permian lavas, 481; CORNWALL,Restormel mine, waylandite, 731; CUMBRIA, Lake District, tourmalinization...analysis, rare earth elements, 3 IRAQ, Qala-Dizeh region, baghdadite, new mineral, 119 IRELAND, Connemara...chrysotile and polygonal serpentine, 301; Buca della Vena mine, V-bearing derbylite, 328; Mazzano Romano, ranci6ite...coronitic microstructure, 441, 474 Johninnesite, Namibia, new mineral, 667 JONES, G. C., see GATEHOUSE,B...385; muscovite-biotite miscibility gap, 641 NAMIBIA,Kombat mine, johninnesite, 667; see also SOUTH WESTAFRICA |
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