 | | Journal (article/letter/editorial) | | evidence for the origin of the Brandberg West area Sn–W vein deposits, NW Namibia Received: 3 June 2005 /...Springer-Verlag 2006 Abstract The Brandberg West region of NW Namibia is dominated by poly-deformed turbidites...Damaran-age hydrothermal quartz vein-hosted Sn–W mineralization at Brandberg West and numerous nearby smaller...studies of the vein quartz suggests that the ore-forming fluids at the Brandberg West mine were CO2-bearing...are 415–521°C (quartz–muscovite), 392–447°C (quartz–cassiterite), and 444–490°C (quartz–hematite). At |  | | Journal (article/letter/editorial) | | 07 January 2015 Goboboseb Mountains Brandberg Region, Namibia BRUCE CAIRNCROSS Department of Geology...Bruce Cairncross Some of the finest prehnite and quartz, including amethyst, in southern Africa has been...the past few decades in the Brandberg region, Namibia. Excellent quartz specimens display a wide variety...that add to the appeal of specimens from the area. The quartz is well known for its luster, clarity, and...phantoms of amethyst and smoky quartz zoned in single crystals. The quartz may contain fluid inclusions |  | | Report (issue) | | MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY NAMIBIA I 1990 Open File Report MRS 05 2 Abstract A...wide variety of semi-precious stones occur in Namibia, namely amazonite, the beryl varieties, chrysocolla...cordierite, dioptase, dumortierite, pyrophyllite, the quartz varieties the garnet varieties, milarite, including...rose quartz and smoky quartz are currently the most important semi-precious stones found in Namibia. The...turquoise. An extensive deposit of amethyst occurs in quartz-calcite veins in rocks of the Swakop Group. Druses |  | | Report (issue) | | SURVEY NAMIBIA 1990 Open File Report MRS 12 2 Abstract Niobium-tantalum mineralisation in Namibia occurs...by-products of Tin-mining operations in central Namibia (Uis, Nainais, De Rust). Prominent niobium-tantalum...pegmatites occur in the Tantalite Valley in southern Namibia and have been mined for a long time on a small...2.2.3.6 Kohero West pegmatites 2.2.3.7 Pistelwitz pegmatites 2.2.4 Sandamap - Erongo pegmatite belt 2...Damaran 4 2.2.4.5 Davib pegmatites 2.2 4.6 Davib West pegmatites 2.2.4.7 Pietershill pegmatites 2.2.4 |  | | 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 ....The EarlyGermanGeologistsand Entrepreneursin South West Africa The People- Mineralogists,Geologistsand Collectors...Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...Nauchas-Gamsberg-Hakos Area West and South of Rehoboth The Central and South-CentralDeposits Onganja Mine and Surrounding |  | | Book | | .,,., ..,,.... w + ..... . ·. .... . - Namibia Zauberwelt edler Steine und Kristalle ooa Dieses...Erdgeschichte 8 Zur Geschichte des Bergbaus in Namibia 17 Der Brandberg und die Mineralfunde in seiner Umgebung...blaue Wunder vom Erongo - Auf Aquamarin-Jagd im Innern Namibias 72 Miarolen im Erongo-Granit- ein Eldorado...110 Auf Turmalinsuche in Namibia Die Demantoide von Tubussis in Zentral-Namibia 112 116 Sodalith von...Zeolithe vom Grootbergpaß in Namibia Kamphaugit-(Y) von der Rössing-Mine 120 124 126 136 Das Gahnit-Vorkommen |  | | 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) | | CREDITS Cover: Quartz variety amethyst, 10.5 cm tall Goboboseb Mountains, Erongo Region, Namibia Scott Rudolph...photo © 2009 GIA Page 2 Quartz variety amethyst, 3.5 cm tall Kakamunurle Mine, Kar0r, Tamil Nadu, India...collection, Marie-Lan Nguyen photo Upper middle: Quartz variety amethyst (Japan-law twin), 1.6 cm tall...photo, circa 2004 Bottom: Quartz variety amethyst, 6.7 cm tall Wattika Mine, Murzinka, Sverdlovskaya Oblast'...the word "amethyst" refers to macrocrystalline quartz that is violet or purple and is derived from the |  | | Book | | WINDHOEK ----------- MP mineral perspectives NAMIBIA This current report has been prepared by the Bureau...provide the latest available data and information on Namibia. Comments, revisions, and additional information...• 35.315 cubic feet • 0.0008107 acre-foot Haas Area l kilogru • 2.20462 pound& (avoirdupois) square... Thispublication hasbeencataloged asfollows: Namibia (Mineral pcrspecri vcs) Bibliography: p. 47-55...of Docs. no.: I 28.37/2: 1. Mineral indusrrics-Namibia. I. Coakley, George J. iI ! I l I I TN19 |  | | Catalog/List | | Fine Mineral Show at The Denver Marriott West 1717 Denver West Blvd. • Golden, CO 80401 (Ukrainian Institute...it collected when the Tsumeb Mine (as well as other mines of the region) were still in production in...climbing soon brought him into contact with the quartz crystals that were found on the mountain slopes...1958 to 1973, including: Angola, Basutoland, South-West Africa, Swaziland, South Africa, Rhodesia, and Mozambique...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably |  | | Journal (article/letter/editorial) | | data of fluids in tourmaline, rather than those in quartz, muscovite, or chlorite, support robust interpretation...Huanuni in Bolivia (Müller et al., 2001), Brandberg West in Namibia (Macey & Harris, 2006), Svetloye, Khinganskoye...e. D/H isotopic ratios) from fluid inclusions in quartz at Solnechnoye. Sushchevskaya et al. (2000) and...by the data of argon concentrations in beryl and quartz from the Iultin Sn deposits, which suggest that...of the deposit. The deposit consists of several quartz-mineralized zones with different Sn grades and |  | | Journal (article/letter/editorial) | | vest for Brandberg, Namibia. Her .. Limonite coated Vejen til rosettes and single x of Quartz in cavities...Kombat Mine, Kombat, Namibia med Bornit maIm i vceggen. Vanadium brud nord f or Tsumeb, Namibia, po vejen...Under j orden i Kombat Mine, Kombat , Namibia. Cuprit med Malakit fra Onganya, Namibia. Stykket er i Uta Ulrieke...ser man aldrig i Namibia. Indsamling af Gips roser po Agate Beach, Luderitz, Namibia. . Phonolit bruddet...bruddet ved Aris ncer Windhoek, Namibia. De sma hulrum ca. midt i vceggen indeholder Tuperssuats iait, Makatit |  | Nascimento, D.B., Ribeiro, A., Trouw, R.A.J., Schmitt, R.S., Passchier, C.W. (2016) Stratigraphy of the Neoproterozoic Damara Sequence in northwest Namibia: Slope to basin sub-marine mass-transport deposits and olistolith fields. Precambrian Research, 278. 108-125 doi:10.1016/j.precamres.2016.03.005 | Journal (article/letter/editorial) | | the Neoproterozoic Damara Sequence in northwest Namibia: Slope to basin sub-marine mass-transport deposits...Tectono-sequence Neoproterozoic Damara Sequence Namibia a b s t r a c t The Neoproterozoic Damara Sequence...carbonate rocks that crop out in the Damara Belt, Namibia. In Damaraland (including the Vrede, Bethanis,...Otavi/Swakop groups of the Damara Sequence in the study area are herein interpreted as gravitational deposits...for the base of the lower sequence. In the study area these sequences are limited by an unconformity. |  | | Book (volume) | | place. Now a Fluorite is as valued as a Silver, Quartz is no longer just considered a matrix, Pyrites...Ojuela Mine, Mapimi, Durango, 51 Aegirine Mt Malosa, Zomba Dist., Malawi, 60 Amethyst Brandberg West, Gobbobisberg...Gobbobisberg Mtns., Namibia, 31, 57 Margareta Mine, Amatitlan, Guerrero, Mexico, 20 Apatite (with Tourmaline)...Areas, Pakistan, 15 Golconda Mine, Minas Gerais, Brazil, 32 Panasqueira Mine, Beira Baixa, Portugal, 5,...Valley, Pakistan, 22 Azurite (on Malachite) Milpillas Mine, Sonora, Mexico, 64 Babingtonite Hongxi, Meigu, |  | | Journal (issue) | | Secretary: Colin Brough 1 William Allen Lane LINDFIELD West Sussex RH16 2SA Peter Moore Royal Russell School...field divide, so we started out, encouraged by quartz in flints which were sparkling in the sun, including...some localities in the copper, lead, barite mining area in the hills to the south-east of Pontesbury. The...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 |  | Zhang, Ya-Hui, Zhou, Jia-Xi, Tan, Shu-Cheng, Li, Hui-Min, Hao, Shuang, Jiang, Yong-Guo, He, Xiao-Hu (2020) Genesis of the oxidized Sn ores in the Gejiu district, Yunnan Province, SW China. Ore Geology Reviews, 121. 103474 doi:10.1016/j.oregeorev.2020.103474 | Journal (article/letter/editorial) | | Sn ore district, one of the largest Sn producing area (300Mt @1 wt% Sn) in the world, is located in the...minerals include calcite, dolomite, clay minerals and quartz (Zhang et al., 2007; Qian, 2013). district in...Re-Os, and muscovite 40Ar-39Ar dating, and even quartz 40Ar-39Ar and cassiterite 40Ar-39Ar dating. In...Yangtze Block to the north and the Simao Block to the west (Fig. 1a, b). In the Gejiu ore district, the major...Granitic rocks are widely distributed in the Gejiu area and include alkali-feldspar granite, porphyritic |  | | Book | | papers and 19 geological maps in Western Australia, Namibia and Greenland. Throughout his career, which has...Nova Scotia, Canada . 4.3.9 The Brandberg West Greisen Vein Systems, Namibia . . 4.3.10 The Kalguta Mo-W-Be-Bi.... . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . |  | Harris, Chris, le Roux, Petrus, Cochrane, Ryan, Martin, Laure, Duncan, Andrew R., Marsh, Julian S., le Roex, Anton P., Class, Cornelia (2015) The oxygen isotope composition of Karoo and Etendeka picrites: High δ18O mantle or crustal contamination?. Contributions to Mineralogy and Petrology, 170 (1) doi:10.1007/s00410-015-1164-1 | Journal (article/letter/editorial) | | basalt dykes from the ca 135 Ma Etendeka LIP of Namibia and Karoo-age picrite dykes from Dronning Maud...study are from three locations: the Tuli Syncline region of southern Zimbabwe and NE Botswana, Mwenezi (formerly...Zimbabwe (Cox et al. 1984), and the Ahlmannryggen region of western Dronning Maud Land that forms part of...The Tuli syncline is situated west of Mwenezi (Fig. 1) and comprises an area of volcanic outcrop of 240...(1991); a much larger number of dykes from this area were subsequently described by Riley et al. (2005) |  | | Journal (issue) | | Secretary: Colin Brough 1 William Allen Lane LINDFIELD West Sussex RH162SA Peter Moore Royal Russell School...over rough terrain in three 4 x 4 vehicles in Namibia in July. We slept above the ground on camp beds...tourmalines, rose quartz, red garnets, sceptred amethysts and distorted, bent crystals of quartz known as "crazy..."crazy quartz". We also collected some rare minerals: red recticulated rutile, balls of the yellow bismuth.................................. LANZAROTE TO NAMIBIA: Olivine to Shattuckite Plus our advert appeared |  | | Journal (article/letter/editorial) | | pegmatites of the cape cross-uis pegmatite belt, namibia Warrick C. Fuchsloch, Paul A.M. Nex, Judith A...pegmatites of the cape crossuis pegmatite belt, namibia. The address for the corresponding author was captured...PEGMATITES OF THE CAPE CROSS-UIS PEGMATITE BELT, NAMIBIA Warrick C. Fuchslocha*, Paul A.M. Nexb, Judith...Granitic pegmatite, Pegmatite classification, Namibia, Damara Orogen, Pegmatite geochemistry, Anatexis...Abstract The Pan African aged Damara Orogen in Namibia is host to the Cape Cross-Uis pegmatite SC belt |  | | Journal (issue) | | Thirty-three, Number Four Articles Jeremejevite from Namibia . . . . . . . . . . . . . . . . . . . . . . . ...Johnston & E. R. Swoboda Sulfur from the Perticara mine area, Pesaro-Urbino, Italy . . . . . . . . . . . ....Pezzotta Famous mineral localities: The Lord Brassy mine, Tasmania . . . . . . . . . . . . . . . . . . .... John Sinkankas (1915–2002) at the Pala Properties Mine Bash, 1977. Van Pelt photo. NOTICE Died, John Sinkankas...County $12 Museum, Himalaya mine $12 (Brazil), Bosch Collection v.10/#2 Jeffrey mine (Quebec), Alpine Rodingites |  | | Journal (article/letter/editorial) | | tectonic alkaline magmatism in Saudi Arabia and West Africa. For the remainder ol the Phanerozoic, folding...carhonatites with oversaturated magmatism such as in Namibia. Angola, and the East African rift system. Despite...Phanerozoic Cameron Niger Nigeria Sudan Saudi Arabia Namibia 1. Introduction Most of the African continent...Phanerozoic in Saudi Arabia (Drysdall et ul. 1986) and West Africa (Liegeois et al, this volume). Recent detailed...1986). Thus the most important feature of this region is the sequential development of granitic rock |  | | Report (issue) | | crystal weighed 455 kilograms. 2m: The Queen Anne mine in Zimbabwe has produced crystals up to 2 meters...phosphate type pegmatites, beryl is associated with quartz, microcline, albite, muscovite, biotite, ferrocolumbite...Alpine and hydrothermal veins, it is found with quartz and feldspar. In topaz rhyolites where red beryl...beryl is found, topaz, high-temperature quartz, and bixbyite are common associates of beryl. Alteration...2.87 1 (50) A bove: Beryl, topaz, a/bite, and quartz; 15 cm from the Shigar Valley, Skardu district |  | Legros, Hélène, Richard, Antonin, Tarantola, Alexandre, Kouzmanov, Kalin, Mercadier, Julien, Vennemann, Torsten, Marignac, Christian, Cuney, Michel, Wang, Ru-Cheng, Charles, Nicolas, Bailly, Laurent, Lespinasse, Marc-Yves (2019) Multiple fluids involved in granite-related W-Sn deposits from the world-class Jiangxi province (China) Chemical Geology, 508. 92-115 doi:10.1016/j.chemgeo.2018.11.021 | Journal (article/letter/editorial) | | each deposit, pre- (quartz), syn- (wolframite and cassiterite) and post-ore (quartz, NU topaz and fluorite)...proportion (~5%) of inclusions observed in the ore-stage quartz from Maoping have D aquo-carbonic compositions...compositional groups are defined. Early PT E quartz fluid inclusions are characterized by salinities...metal contents (W < 40 ppm). Values of δ18O in quartz range from - AC 3.6 to 5.3 ‰ VSMOW while δD values...inclusions in wolframite as well as in post-ore quartz and fluorite have salinities of 5.6 to 12.6 wt |  | Wei, Wenfeng, Hu, Ruizhong, Bi, Xianwu, Peng, Jiantang, Su, Wenchao, Song, Shengqiong, Shi, Shaohua (2012) Infrared microthermometric and stable isotopic study of fluid inclusions in wolframite at the Xihuashan tungsten deposit, Jiangxi province, China. Mineralium Deposita, 47 (6) 589-605 doi:10.1007/s00126-011-0377-0 | Journal (article/letter/editorial) | | There are two major sets of subparallel ore-bearing quartz veins. The ore mineral assemblage includes wolframite...but at least three major types of inclusions in quartz: two- or three-phase CO2-rich inclusions, two-phase...8–13.7 wt.% NaCl equiv) compared with those in quartz (177–329°C, 0.9–8.1 wt.% NaCl equiv). These distinct...those conventional microthermometric data from quartz are not adequate to explain the ore formation process...Qinling-Dabie orogenic belt to the north, is bounded to the west by the Tibetan Plateau. The Cathaysian Block has |
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