 | 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) | | mineralization: Examples from the Otavi Mountainland (Namibia) Jens Schneider a,ā, Maria Boni b,c , Carsten Laukamp...Germany d Geological Survey of Namibia, 1 Aviation Road, Windhoek, Namibia Received 12 September 2005; accepted...willemite from the Berg Aukas and Abenab West deposits, Otavi Mountainland (Namibia), which are hosted...comparable to those observed for the Zn sulfide sphalerite, which has been already successfully used for... Isochron regressions combining samples from Berg Aukas and Abenab West willemites yield RbāSr ages in |  | | Journal (article/letter/editorial) | | 20013 pohwatp@si.edu WILLEMITE Tsumeb Mine, Tsumeb, Otjikoto, Namibia M ineral nomenclature is usually...Figure 1. Willemite from the Tsumeb mine, Otijikoto region, Namibia. The specimen displays the typical...leucophoenicite, hedyphane, and sphalerite. Black willemite is common from the Sterling Hill mine, with the color due...associated with black willemite include lƶllingite, sphalerite, and fayalite (Dunn 1995). Specimens of willemite...specimen producer is the Tsumeb mine, Tsumeb, Otjikoto region, Namibia. Willemite specimens were relatively |  | Mondillo, Nicola, Accardo, Mariafrancesca, Boni, Maria, Boyce, Adrian, Herrington, Richard, Rumsey, Mike, Wilkinson, Clara (2020) New insights into the genesis of willemite (Zn2SiO4) from zinc nonsulfide deposits, through trace elements and oxygen isotope geochemistry. Ore Geology Reviews, 118. 103307 doi:10.1016/j.oregeorev.2019.103307 | Journal (article/letter/editorial) | | 31 area, Zambia), Kabwe (Zambia), Berg Aukas and Tsumeb (Namibia); 3. Supposedly supergene deposits:...formal description of the mineral from the Altenberg mine (Moresnet, 69 Belgium) and he named the new mineral... 75 willemite locally replaces the original sphalerite, and is commonly associated with 76 franklinite...(Australia), Kabwe (Zambia) 79 and Berg Aukas and Abenab (Namibia). These deposits occur in Neoproterozoic...re-interpretation) of deposits like Beltana, Vazante, Berg Aukas and 90 Kabwe, where metamorphic grade is very |  | | Journal (article/letter/editorial) | | Northern Platform of the Pan-African Damara Belt, Namibia: geochemical and ĀÆuid inclusion evidence from carbonate...a base metal sulphide ore province in northern Namibia where deposits are hosted by platform carbonates...Damara Belt. Deposits have been classiĀ®ed as the Berg Aukas- or Tsumeb-types, based on diĀerences in ore...the Tsumeb and Kombat (Tsumeb-type) and Berg Aukas (Berg Aukas-type) deposits, was established. Similar... Tsumeb-type deposits are distinguished from Berg Aukas-type deposits by having trace element and REE |  | 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) | | Genesis of Vanadium Ores in the Otavi Mountainland, Namibia MARIA BONI,ā Dipartimento di Scienze della Terra...mottramite, and vanadinite) in the Otavi Mountainland, Namibia, once were considered the greatest vanadium deposits...the areas surrounding primary sphalerite-willemite orebodies (Berg Aukas type). The V deposits the Otavi...Belgium. 0361-0128/07/3663/441-29 Mountainland, Namibia. Mining for vanadium, following the exploitation...Okorundu pipe Abenab West Harasib 3 Wolkenhauben Berg Aukas Zn mottramite Mottramite Cu descloizite Cu descloizite |  | | Journal (issue) | | Actinolite from Namibia by Justin Zzyzx ............................................pg. 15 Abenab Mine by Ernst...Three Aloes Mine by Ernst Schnaitmann ........................................pg. 37 Berg Aukas by Ernst..................................pg. 47 Otjozondu Mine by Ernst Schnaitmann .............................we bring you eleven articles about locations in Namibia that do not receive much publicity. It is easy...legendary deposits such as Tsumeb, the Brandberg region and the Erongo Mountains. Alpine clefts, huge soda |  | | Journal (article/letter/editorial) | | mineralization in the Otavi Mountain Land, Northern Namibiaāa review and regional interpretation A.F. Kamona...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...like Tsumeb (PbāCuāZnāGe), Kombat (CuāPbāZn), Berg Aukas (ZnāPbāV), Abenab West (PbāZnāV) all occur in...carbonate-hosted PbāZn deposits in the Abenab Subgroup at Berg Aukas and Abenab is not well constrained, but the stable |  | | Report (issue) | | Smithsonite slice and egg, 5.8 and 2.7 cm tall Masua Mine, Carbonia-lglesias, Sardinia, Italy Cal and Kerith...page Smithsonite, 9.2 cm wide 400 Foot Level, Kelly Mine, Magdalena District Socorro County, New Mexico Steve...Greece ion; Scovil photo ne xi repaired) umeb, Namibia ion; Fisher photo ļæ½exico; mithsoni Phila Bunks...1867. Ā·thsonian Smithsonite First Oxide Zone, Tsu Mine, Tsumeb, Nami 10cm tall Brent Lockhart coll Joe...of 10 centimeters! The crystal is from Tsumeb, Namibia, and is on display at the National Museum of Natural |  | | Journal (article/letter/editorial) | | MINER.GES. 148 (2003) THE OTAVI MOUNTAIN LAND IN NAMIBIA: TSUMEB, GERMANIUM AND SNOWBALL EARTH by Frank...carbonate successions in the Otavi Mountain Land, Namibia, host a large number of polymetallic (Cu-Pb-Zn)...deposits, and are compared to the ores of Kombat and Berg Aukas. At Tsumeb, local pockets of germanite and reniĆ©rite-rich...Springs mine is composed of tennantite, enargite, galena and pyrite, with lesser amounts of sphalerite and...ore-dolomite contacts. Gebearing ore replaces earlier sphalerite-pyrite-dominated mineralization and formed from |  | | Journal (issue) | | precious stone. Opalbanya is the name of the original mine location. Possibly Magyar, ancient Hungarian. These...are fine Some aren't unpacked yet -a few are now mine! But rocks in the garage and more in the shed, Were...for Vitec, our contact for our visit to the Tsumeb Mine. It has to be said that some of that time was spent...Figure 1 Headframe of the De Wet Shaft, Tsumeb 1 Namibia Handbook (Footprint) p324 -7- SMLS Journal 176...and diversity of mineral resources throughout Namibia. Although widely ranging and distributed, a large |  | 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) | | fluids derived from the oxidative destruction of sphalerite-bearing sulfide bodies. Formation of these deposits...bodies contain willemite and variable amounts of sphalerite, are hematitic, and are generally associated...flotation process and the ability to smelt and refine sphalerite concentrates, the vast majority of zinc production...silicates and oxides, and they commonly contain minor sphalerite. These deposits represent a newly recognized...consisting of veins and irregular pipes of willemite-(sphalerite-hematite-manganeseārich minerals) and stratiform |  | Mondillo, Nicola, Wilkinson, Jamie J., Boni, Maria, Weiss, Dominik J., Mathur, Ryan (2018) A global assessment of Zn isotope fractionation in secondary Zn minerals from sulfide and non-sulfide ore deposits and model for fractionation control. Chemical Geology, 500. 182-193 doi:10.1016/j.chemgeo.2018.09.033 | Journal (article/letter/editorial) | | several Zn deposits in Ireland, Belgium, Poland, Namibia, Peru, Yemen and Zambia. The data are compared...precursor phase (primary sphalerite or an earlier secondary phase), with primary sphalerite falling in a relatively...in which partial dissolution AC of primary sphalerite is followed by precipitation of an initial secondary...isotopic data observed for 5 ACCEPTED MANUSCRIPT sphalerite in the Irish ore field is likely generated by...observed that ācontinuous batch leaching of M sphalerite at pH=2 and pH=4 was characterized by a modest |  | | Journal (issue) | | Foote also made several collecting visits to the mine in 1890-1891, and brought back many good specimens...chemist and physicist). In 1895 Niven purchased the mine from its owner, on behalf of Thomas Edison. In the...dozen mines were opened, one of which (the Mariposa mine) produced a wider variety of mercury minerals than...cutting coarse-grained reddish granites of the hilly region thereabouts, known geologically as the Llano Uplift...Morgenstern photo. Calcite, 5.8 cm, from the Mariposa mine, Terlingua; Roh Lavinsky (The Arkenstone) specimen |  | | 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...models and are similar to those found in the wider region of southern Africa (Otavi Mountain Land) and eastern...the north and around Rosh Pinah in the south of Namibia being the principal areas of current mining activities...have been distinguished, the Zn-Pb dominated Berg Aukas-type and the more cupriferous Tsumeb-type (Pirajno |  | Mondillo, Nicola, Boni, Maria, Balassone, Giuseppina, Forrester, Nigel, Putzolu, Francesco, Santoro, Licia (2020) Mineralogy and Genesis of the Kihabe Zn-Pb-V Prospect, Aha Hills, Northwest Botswana. Minerals, 10 (8) 685 doi:10.3390/min10080685 | Journal (article/letter/editorial) | | (Cu-Ag-Ge) prospect is located at the boundary between Namibia and Botswana (Aha Hills, Ngamiland District) in...mineralization. Sulfide minerals consist mainly of sphalerite, galena and pyrite in a metamorphic quartzwacke...2020, 10, 685 2 of 26 Mountainland (OML) in Namibia is host to several base metal ore deposits [2]...be grouped into at least four ore types: (1) Berg Aukas-type Zn-Pb deposits in carbonates; (2) Tsumeb-type...the basal Mulden Group [3]. Among these, the Berg Aukas- and Tsumeb-types, both hosted by carbonate rocks |  | | 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 |  | Silin, Ivan, Hahn, Klaus, GĆ¼rsel, Devrim, Kremer, Dario, Gronen, Lars, StopiÄ, SreÄko, Friedrich, Bernd, Wotruba, Hermann (2020) Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores. Minerals, 10 (2) 197 doi:10.3390/min10020197 | Journal (article/letter/editorial) | | 0.084 13.6 13.60 South Africa Mapochs Mine Rhovan Mine 1.5 0.52 1.5 1.06 1.60 Generally, VTM...Russia and the Chinese deposit in the Panzhihua region contain resources of 13.6 and 10.4 million metric...Ā·4H2 O Bornite Cu5 FeS4 Sulfide Galena PbS Sphalerite ZnS Chalcocite Cu2 S Chalcopyrite CuFeS2 Besides...vanadate ore from Abenab West Mine, Namibia. After the closure of the Berg Aukas Mine and stoppage of the flotation...been mined in commercial quantities in Spain, Namibia, Zambia, USA, Mexico, and Argentina [59,60]. The |  | | Journal (article/letter/editorial) | | OTAVI MOUNTAINS, SOUTHWESTAFRICA N. L. MenrHAM, Grootfontein,Soulh West Afri'ca has recently An interesting...the Otavi Valley about 40 miles South West of Grootfontein. Dolomites of the Lower (?) Tsumeb Stage of...Primary sulfide minerals at Kupferberg include sphalerite, tennantite, pyrite, galena,enargite and jordanite...mineralisationhas many similaritiesto that of the nearby Tsumeb Mine, the sulfide ores being characterised by an abundance...in- Frc. 1. The assemblagejordanite-tennantite-sphalerite. X80. timately associatedwith other sulphide |  | | Journal (article/letter/editorial) | | University Auburn, Alabama 36849-5305 TSUMEB, NAMIBIA D istinctive colors are characteristic of certain...mineral derived from the supergene oxidation of sphalerite. It is particularly common in the oxide zones... aragonite, dolomite, anglesite, galena, and sphalerite have been reported. Quartz,goethite, pyrolusite...Bozion 1962) and as an alteration product in sphalerite-bearing pegmatites. Only those localities known...mines, Phoenixville, Chester County, the Ueberroth mine near Bethlehem, and the zinc mines at Friedensville |  | | Journal (article/letter/editorial) | | madeto the importantleadzinc-vanadiumdepositat Berg Aukas, togetherwith other willemite occurrences in... Mountains of South West Africa. At the Berg Aukas Mine exploratorydiamonddrilling hasindicatedsurface...smithsonitehave formed by direct replacementof sphalerite,while cerussiteowesits origin to the replacementof...differentto thosenotedin the upper levelsof the Berg Aukas mine and are very similarto thosepreviouslydescribedby...the walls of the cavitiesare commonly madeup of sphalerite-galena ore now largelyoxidizedto willemite,cerussite |  | | Journal (issue) | | Westcott copper mine, comprised three separate collecting sites in two short adits and the mine dump. Nearby...Nearby was the Badger Level section of the Huglith mine complex, which was our other location. We were too...a layby in the forestry surrounding the Huglith mine. When we did so later in the day there were some...more interesting of the. sites at the ā¢Westcott mine, though a few good finds were made in the two ad...ā¢ ā¢ ā¢, :. ā¢ I Originally started as a copper mine in the latter part of the 1800s, the workinĀ·gs at |  | | Book | | GerhardNiedermayr& Gabi Schneider bode ,rand berg Organ Pipes / Twyfelfontein 7 AiAiba / farm...Mountainland The Central Northern to Northwest Region including Damaraland The Central Namib Desertand...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 |  | | Catalog/List | | 44x40x25mm. Ā£42 Ā£45 4 TENNANTITE, Cooks Kitchen Mine, lllogan, Cornwall. RW Barstow green label. 60x43x18mm...Quartz, Zabytoe Mine, Dalnegorsk, Russia. Crystals to 4.5mm. 63x47x33mm. 8CUPRITE, Caradon Mine, St Cleer...53x40x24mm. Ā£52 9 DESCLOIZITE and Dolomite, Berg Aukas, Namibia. Glistening xtts to 3mm. 100x52x46mm. Ā£32...BENITOITE, Gem Mine, San Benito Co., California, USA 75x33x28mm. Ā£68 11 FLUORITE,SPHALERITE, and GALENA...GALENA, AnnabelLee Mine,Cave In Rock, Illinois, USA Purple cubes to 22mm. 86x65x40mm.Ā£72 |  | | Catalog/List | | TN. 45 Ā£12 00 NATIVE SILVER with COPPER, Central Mine, Keweenaw Co . Michigan, USA. Growths of native...schistose matrix. R.MI. 77 Ā£12.00 NATIVE GOLD, Homestake Mine, Lead,South Dakota, USA. Flecks of native gold <4mm...matrix. R.MI. ' 6 Ā£12 00 NATIVE GOLD, Homestake Mine, Lead,South Dakota, USA. Flecks of native gold <4mm...matrix. R.ML : 81 ā Ā£12.00 NATIVE GOLD, Homestake Mine, Lead,South Dakota, USA. Flecks of native gold <4mm...26x7x5mm. 44 Ā£18.00 NATIVE SILVER & COPPER, White Pine Mine, Ontonagon Co., Michigan, USA. Flatfish growth of |  | | Book (volume) | | Claim, Teller Co., Colorado, 43 Apatite Golconda Mine, Minas Gerais, Brazil, 13 Laghman, Nuristan, Afghanistan...Pakistan, 33 (with Schorl), 47 Jos, Nigeria, 15 Medina Mine, Minas Gerais, Brazil, 36 Teofilo Otoni, Minas Gerais...Malachite) Copper Queen Mine, Bisbee, Cochise Co., Arizona, 12 Tsumeb Mine, Tsumeb, Namibia, 16, 20 Beryl (see...Claim, Wah Wah Mtns., Utah, 3 Bournonite Yaoganxian Mine, Yizhang Co., Hunan Prov., China, 31 Calcite (on...Cassiterite Xuebaoding Mine, Pingwu, Sichuan Prov., China, 26 Chalcocite Bristol Copper Mine, Bristol, Connecticut |
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Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia