 | | Journal (article/letter/editorial) | | Micas of the muscovite ^lepidolite series from Karibib pegmatites, Namibia E. RODA1,*, P. KELLER2, A...Kristallchemie, Universitat Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany 3 Laboratoire de Cristallographie...muscovite lepidolite series are main constituents of the evolved pegmatites from the Okatjimukuju-Kaliombo...Okatjimukuju-Kaliombo portion of the Karibib belt, Namibia. The compositional variations shown by the micas from the intermediate...degree of pegmatite evolution, but also on the position in the internal zonation of the pegmatite. Micas |  | Baldwin, J. R., Hill, P. G., von Knorring, O., Oliver, G. J. H. (2000) Exotic aluminium phosphates, natromontebrasite, brazilianite, goyazite, gorceixite and crandallite from rare-element pegmatites in Namibia. Mineralogical Magazine, 64 (6) 1147-1164 doi:10.1180/002646100549940 | Journal (article/letter/editorial) | | and crandallite from rare-element pegmatites in Namibia J. R. BALDWIN1,*, P. G. HILL2, O. VON KNORRING3...rare-element pegmatites from the KaribibUsakos area, Namibia, have been investigated using the electron microprobe...F) is reported from the Daheim pegmatite. In the Okatjimukuju pegmatite, montebrasite has been replaced...with crandallite, goyazite and gorceixite at Okatjimukuju. The occurrence of these minerals offers insight...post-magmatic fluids in these pegmatites. K EY WORDS : Namibia, exotic aluminium phosphates, lithium pegmatites |  | | Book | | Twyfelfontein 7 AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree ...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...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits |  | Keller, Paul, Fontan, François, Roldan, Francisco Velasco, de Parseval, Philippe (2007) Joosteite, Mn2+(Mn3+, Fe3+)(PO4)O: a new phosphate mineral from the Helikon II Mine, Karibib, Namibia. Neues Jahrbuch fĂŒr Mineralogie - Abhandlungen, 183 (2) 197-201 doi:10.1127/0077-7757/2007/0069 | Journal (article/letter/editorial) | | new phosphate mineral from the Helikon II Mine, Karibib, Namibia Paul Keller, François Fontan, Francisco...found in the granitic rare element pegmatite Helikon II, Karibib, Namibia. The new mineral is the Mn3 + -analogue...new mineral honours Mrs. Charlotte Jooste, Karibib, Namibia. Key words: Joosteite, Mn2 + (Mn3 + , Fe3...staneÌkite, granitic pegmatites, Helikon II mine, Karibib, Namibia. Introduction During a research program...dumps of the Helikon II pegmatite, Okongava-Ost farm (No. 72), Karibib, Namibia. It turns out that the |  | Vignola, Pietro, Hatert, FrĂ©dĂ©ric, Roda-Robles, EncarnaciĂłn, Simmons, William B., Francis, Carl A. (2014) PEGMATITIC PHOSPHATE: A TRIBUTE TO FRANĂOIS FONTAN, ANDRĂ-MATHIEU FRANSOLET, AND PAUL KELLER. The Canadian Mineralogist, 52 (2) 121-128 doi:10.3749/canmin.52.2.121 | Journal (article/letter/editorial) | | the petrologic processes involving both single pegmatite dikes and entire pegmatitic swarms or fields....revealing the geological history of the hosting pegmatite. The central part of the 20th century was characterized... occurrence, and the features of the hosting pegmatite. As an example, the first complete descriptions...phosphate paragenesis characterizing a specific pegmatite are due to Mason (1941) and Quensel (1952), who...studies about: primary hagendorfite at the Kibingo pegmatite (Fransolet et al. 2004); the minerals belonging |  | Baldwin, J. R., Hill, P. G., Finch, A. A., von Knorring, O., Oliver, G. J. H. (2005) Microlite-manganotantalite exsolution lamellae: evidence from rare-metal pegmatite, Karibib, Namibia. Mineralogical Magazine, 69 (6) 917-935 doi:10.1180/0026461056960299 | Journal (article/letter/editorial) | | exsolution lamellae: evidence from rare-metal pegmatite, Karibib, Namibia J. R. BALDWIN1,*, P. G. HILL2, A. A...fractionated rare-metal Li/Be/Ta pegmatite at Rubicon, Karibib, Namibia. Electron microprobe analyses show...Ta-rich minerals is the Rubicon, Karibib pegmatite deposit in Namibia (see Fig. 1 from Baldwin , 2000...minerals are linked, in a wider context, to the pegmatite petrogenesis. relationship between the mine authorities...processes that contribute to the The Rubicon pegmatite mine setting Ăż geological Highly differentiated |  | Che, Xu-Dong, Wu, Fu-Yuan, Wang, Ru-Cheng, Gerdes, Axel, Ji, Wei-Qiang, Zhao, Zhen-Hua, Yang, Jin-Hui, Zhu, Ze-Ying (2015) In situ UâPb isotopic dating of columbiteâtantalite by LAâICPâMS. Ore Geology Reviews, 65. 979-989 doi:10.1016/j.oregeorev.2014.07.008 | Journal (article/letter/editorial) | | LAâICPâMS Matrix effect Nanping pegmatite Altai No.3 pegmatite Dahe pegmatite Yichun a b s t r a c t Columbiteâtantalite...commonly occurring in rare metal granite and pegmatite, alkaline granite, syenite and carbonatite. Its...coltan standard from Namibia (Coltan139), the coltan sample from Dahe pegmatite (SNNT) has a weighted...coltan samples from Altai No.3 pegmatite (713-79), Yichun topaz-lepidolite granite (Yi-1) and Huangshan...established analytical protocol, we date the Nanping pegmatite (NP155), a main NbâTa deposit in China without |  | | Journal (article/letter/editorial) | | with Li and Sn, which is in agreement with the pegmatite field zonation established in the literature....Distribution of the pegmatite groups recognized in the Fregeneda area (* numbers of pegmatite types as in Table...layers. Previous works on the description of the pegmatite bodies, their mineralogy and their petrogenesis...phosphates that appear in the various different pegmatite bodies, as well as to specify the mineralogical...in the different pegmatite types of the Fregeneda area Phosphate minerals Pegmatite type Ideal formula |  | Melcher, F., Graupner, T., Sitnikova, M., Henjes-Kunst, F., OberthĂŒr, T., GĂ€bler, H.-E, Bahr, A., Gerdes, A., BrĂ€tz, H., Rantitsch, G. (2009) Ein Herkunftsnachweis fĂŒr Niob-Tantalerze am Beispiel afrikanischer Selten-Element Pegmatite. Mitteilungen der Ăsterreichischen Mineralogischen Gesellschaft, 155. | Journal (article/letter/editorial) | | NIOB-TANTALERZE AM BEISPIEL AFRIKANISCHER SELTEN-ELEMENT-PEGMATITE von Frank Melcher1 , Torsten Graupner1 , Maria...artisanalem Bergbau in Ruanda, Mosambik, Ăthiopien und Namibia detailliert untersucht. Die kontrollierte Probennahme...Ăgypten, Ăthiopien, Somalia, Madagaskar, Mosambik, Namibia, Nigeria, Simbabwe, SĂŒdafrika und in Westafrika...(panafrikanisch, z.B. Mosambik, Ăthiopien, Damara Orogen in Namibia) und (5) mesozoisch (jurassische Ringkomplexe des...Granite palĂ€oprotero-zoisch, spĂ€t-orogen LCT-Pegmatite Kokobin, Issia 6°N historisch bedeutend; derzeit |  | | Journal (article/letter/editorial) | | crystallized to form a group of intra-granitic pegmatite dykes, which are hosted by its outermost facies...fractures to form the Cruz del Rayo field of pegmatite dykes, which are hosted by pre-Ordovician low-grade...series. A strong albitization of the granitic and pegmatite rocks led to the replacement of the primary assemblage...interaction. Introduction SECONDARY granite and pegmatite phosphates have been extensively documented (e... LLORENS AND M. C. MORO aplitic bodies, the pegmatite dykes, and the mineralized intra-granitic quartz |  | | Journal (article/letter/editorial) | | GEOCHEMISTRY OF PHOSPHATES AND SILICATES IN THE SAPUCAIA PEGMATITE, MINAS GERAIS, BRAZIL: GENETIC IMPLICATIONS Maxime...Grand-DuchĂ© de Luxembourg Abstract The Sapucaia pegmatite is located in the well-known Eastern Brazilian...Minas Gerais, Brazil. Detailed mapping of the pegmatite body revealed five zones, showing distinct mineral...quartz core (Q). Phosphate masses found in the pegmatite contains two different assemblages: assemblage...formed under oxidizing conditions, and assemblage II is formed under less strongly oxidizing conditions |  | Melcher, Frank, Graupner, Torsten, GĂ€bler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, OberthĂŒr, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalumâ(niobiumâtin) mineralisation in African pegmatites and rare metal granites: Constraints from TaâNb oxide mineralogy, geochemistry and UâPb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | (western Zimbabwe) 4.3.3. Orange River Pegmatite Belt (Namibia, South Africa) AC 4.3.3.1. Radiometric...Radiometric data 4.4.3.2. Mineralogy 4.4.4. Damara Belt (Namibia) 4.4.4.1. Radiometric data 2 ACCEPTED MANUSCRIPT...3.2. Kamativi Schist Belt 5.3.3. Orange River Pegmatite Belt 5.4. Late Neoproterozoic to early Paleozoic...Alto-Ligonha Province (Mozambique) 5.4.4. Damara Belt (Namibia) 5.4.5. Older Granites (Nigeria) 5.4.6. Madagascar...presented for 13 rare-element granite NU and pegmatite districts in Africa, covering Archean, Paleoproterozoic |  | | Book (edition) | | book. Front co,·er photos: Turquoise, polished. 55 mm, ZhiJandy, Kazakhstan, G Galena, 45 mm, Madan...biotite (with end-members annitephlogopite), lepidolite (trilithionite-polylithionite), olivine (forsterite-fayalite)...among the important economic ore minerals (eg: lepidolite, wolfrarnite). In many cases, minerals have an...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided |  | | Book | | the same passion for minerals and the NE Bavarian region. The Oberpfalz was his home and my adopted country...the principal techniques of deep geophysics, this region enables us to look at the origin of pegmatites...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area...area, however, the Hagendorf-Pleystein Pegmatite Province (HPPP) is not only the largest concentration of...everything has been told about this prominent pegmatite. Professor Strunz was a generous and open-minded |  | | Journal (article/letter/editorial) | | 19 19 19 40 41 41 45 45 46 47 48 48 48 48 49 51 51 55 56 56 57 57 57 57 57 60 60 62 62 62 62 65 65 65 65...-43-46 14 24-48 16 32-33 10 16-19-20-38-40-49-54-55 31 13-15 32 44 44-46-48 43 5 24 49-50 16 31 9 7 2...10 20 28-30-31-34-37-38-40-54 39-39 35-35 27-53-54-55 31 14 37 49 8 42 16 2 15-57 9-12-16-19-20-32-46 7...Lawsonite Lazulite Lazurite Leonite Lepidocrocite Lepidolite Leucite Libethenite Linneite Lithiophilite Lithiophorite...25S0.9 30 24 12 44 28 22 41 30 28 16 46 19-38-43-54-55-59 5 9 (and others) 16 16 30 1 4 13 8 44-46-50 20 | | | Journal (article/letter/editorial) | | 19 19 19 40 41 41 45 45 46 47 48 48 48 48 49 51 51 55 56 56 57 57 57 57 57 60 60 62 62 62 62 65 65 65 65...-43-46 14 24-48 16 32-33 10 16-19-20-38-40-49-54-55 31 13-15 32 44 44-46-48 43 5 24 49-50 16 31 9 7 2...10 20 28-30-31-34-37-38-40-54 39-39 35-35 27-53-54-55 31 14 37 49 8 42 16 2 15-57 9-12-16-19-20-32-46 7...Lawsonite Lazulite Lazurite Leonite Lepidocrocite Lepidolite Leucite Libethenite Linneite Lithiophilite Lithiophorite...25S0.9 30 24 12 44 28 22 41 30 28 16 46 19-38-43-54-55-59 5 9 (and others) 16 16 30 1 4 13 8 44-46-50 20 |
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