| | 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 | | | Journal (article/letter/editorial) | GEOCHEMISTRY OF PHOSPHATES AND SILICATES IN THE SAPUCAIA PEGMATITE, MINAS GERAIS, BRAZIL: GENETIC IMPLICATIONS Maxime...Grand-Duché 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 | | Baijot, Maxime, Hatert, Frédéric, Dal Bo, Fabrice, Philippo, Simon (2014) Mineralogy and petrography of phosphate mineral association from the Jocão pegmatite, Minas Gerais, Brazil. The Canadian Mineralogist, 52 (2) 373-397 doi:10.3749/canmin.52.2.373 | Journal (article/letter/editorial) | PHOSPHATE MINERAL ASSOCIATIONS FROM THE JOCÃO PEGMATITE, MINAS GERAIS, BRAZIL Maxime BAIJOT, Frédéric...Grand-Duché de Luxembourg Abstract The Jocão pegmatite (or Cigana) is located in the well-known Eastern...mineral masses were collected from the dumps of the pegmatite: association I is composed of dendritic triphylite...minerals (spessartine garnet or albite); association II forms blocky nodules of triphylite-ferrisicklerite-heterosite;...vivianite progressively replaced triphylite. Association II evolved under more oxidizing conditions and the first | | Roda-Robles, E., Galliski, M. A., Roquet, M. B., Hatert, F., de Paeseval, P. (2012) Phosphate nodules containing two distinct assemblages in the Cema granitic pegmatite, San Luis province, Argentina: Paragenesis, composition and significance. The Canadian Mineralogist, 50 (4) 913-931 doi:10.3749/canmin.50.4.913 | Journal (article/letter/editorial) | TWO DISTINCT ASSEMBLAGES IN THE CEMA GRANITIC PEGMATITE, SAN LUIS PROVINCE, ARGENTINA: PARAGENESIS, COMPOSITION...are common in the outer core zone of the Cema pegmatite, San Luis Range, Argentina. Two different complex...enrichment observed in these phosphates, in a pegmatite that is not highly fractionated, could be explained...schorl, in the border and wall zones of this pegmatite. The crystallization of this silicate would have...depleted the activity of Fe in the remaining pegmatite-forming melt. Keywords: Fe–Mn phosphates, nodules | | Schmid-Beurmann, Peter, Ottolini, Luisa, Hatert, Frédéric, Geisler, Thorsten, Huyskens, Magdalena, Kahlenberg, Volker (2013) Topotactic formation of ferrisicklerite from natural triphylite under hydrothermal conditions. Mineralogy and Petrology, 107 (4) 501-515 doi:10.1007/s00710-012-0250-6 | Journal (article/letter/editorial) | [°C] d t [d] a Mass [mg] Products and PDF # tavorite PDF 10–424 barbosalite PDF 85–1728 triphylite...material for Li, triphylite from the Buranga pegmatite (Rwanda), with a Li content of 9.96 wt.% Li2O...reaction products (Table 1). In the low-temperature region up to 80 °C ferrisicklerite was formed, whereas...200 °C barbosalite, Fe2+Fe3+2(PO4)2(OH)2, and tavorite, LiFe3+PO4OH, were identified as product phases...triphylite and ferrisicklerite from the Tsaobismund pegmatite (Fransolet et al. 1986). However, an exception | | | Journal (article/letter/editorial) | Na-in-triphylite geothermometer: applications to natural pegmatite phosphates Frederic Hatert • Luisa Ottolini Peter...ferrisicklerite [Li1-x(Fe3?,Mn2?)PO4] from the Buranga pegmatite, Rwanda, without any replacement texture. This...(1989) re-examined the samples from the Buranga pegmatite and observed three different primary assemblages:...analysis. We used triphylite from the Buranga pegmatite, Rwanda, as reference material for Li. The wet-chemical...triphylite assemblages In the Hagendorf-Süd pegmatite, Boury (1981) reinvestigated the assemblage t | | | Book (edition) | book. Front co,·er photos: Turquoise, polished. 55 mm, ZhiJandy, Kazakhstan, G Galena, 45 mm, Madan...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...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing...Kunlun Mts., near Hotan, Xinjiang Uygur Autom. region, China, also at Fengtien, Taiwan. Green at Ospinskoye | | | 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 |
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