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| South Africa brucec@uj.ac.za Figure 1. The Three Aloes mine, situated approximately 30 kilometers southeast...quartz-sillimanite veins associated with stanniferous pegmatites and was named after Nigeria, the country of its...ferronigerite2N1S crystals, one in matrix, from the Three Aloes mine, Namibia. Collected in 2011. The single crystal...granite-gneiss and schist that host the tin-bearing pegmatites. Jacobson and Webb (1947) describe four localities...tantalum, cement, and steel (Yager 2015). Columbite-tantalite has been produced by artisanal miners in the Jos |
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| Actinolite from Namibia by Justin Zzyzx ............................................pg. 15 Abenab Mine by Ernst......................................pg. 31 Three Aloes Mine by Ernst Schnaitmann ......................................................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...deposits such as Tsumeb, the Brandberg region and the Erongo Mountains. Alpine clefts, huge soda can |
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| SCHÜTTE Tantalum-(niobium-tin) mineralisation in pegmatites and rare-metal granites of Africa F. Melcher...rare-metal granites (RMG) and granitic rare-element pegmatites (REP). Significant potential exists as a by-product...by-product of spodumene mining from pegmatites, and from Nb-Zr-rare earth element (REE) mining from carbonatites...Kenticha mine (Ethiopia) and in the Alto Ligonha Province (Mozambique). Production from pegmatites and related...the Jos Plateau (Nigeria); Mn-rich columbite-tantalite is typical of the Alto Ligonha Province (Mozambique) |
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| FRONTISPIECE: Historic pump at the Wodgina tantalum–tin mine. Brought from Port Hedland by camel train about...manganotantalite crystals from Moolyella, Pilbara region. Simpson Collection, Western Australian Museum............................................. 6 Tantalite minerals ................................................................................. 6 Tantalite indicators .......................................................... 15 Granitic rare-metal pegmatites ............................................ |
 | Melcher, Frank, Graupner, Torsten, Gäbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, Oberthür, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) |
| Tantalum-(niobium-tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta-Nb...Tantalum-(niobium-tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta-Nb...Tantalum-(niobium-tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta-Nb...Introduction 2. Distribution of rare-element pegmatites in Africa, classification and mineralogy T ...Zimbabwe) 4.3.3. Orange River Pegmatite Belt (Namibia, South Africa) AC 4.3.3.1. Radiometric data 4 |
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| Photograph by Gunnar Ries/CC-BY-SA-3.00. Right, a tantalite crystal. Photograph by Roger Weller, Cochise College...Rare-Metal Granites and Lithium-Cesium-Tantalum–Type Pegmatites........................M17 Resources and Production...............................................M24 Mine Waste Characteristics ........................................................................M27 Mine Closure ..........................................centimeter-size pyrochlore crystals from Uganda, and a tantalite crystal...................................... |
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| .B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption.....................F2 Graph showing world cobalt mine production from 1950 to 2011......................F4. Pie chart showing percentage of world cobalt mine production in 2011, by country................. |
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| historian-collector William J. Brunet set out to trace three ilmenite occurrences mentioned in late 19th-century...localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...However, unusual discoveries in the famous alkaline pegmatites of Mount Malosa in the late 2000s include specimens...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 |
