 | | Journal (article/letter/editorial) | | that the nigerite is frequently intergrown with gahnite. Nigerite nomenclature has been through several...crystals, one in matrix, from the Three Aloes mine, Namibia. Collected in 2011. The single crystal is 8 mm...green gahnite, with the ferronigerite-2N1S either intergrown or partially coating the gahnite. The second...Plateau (fig. 2), located in the Plateau State. This region has been a productive source of alluvial and elluvial...these, Nigeria has produced notable specimens of gahnite (Hain and Sun 2019), elbaite (variety rubellite) |  | | Journal (article/letter/editorial) | | from the abandoned tin mine of Tsomtsaub, between Omaruru and Uis in Namibia have been reinvestigated chemically...for nigerite from Nigeria and Namibia, respectively. Associated gahnite in the Nigerian sample is free...detected. Nigeria Nigeria Nigeria Nigeria Namibia Namibia spinel Esd’s nigerite Esd’s nigerite Esd’s...at the abandoned tin mine of Tsomtsaub, between Omaruru and Uis in Namibia. This sample was kindly received...analyses Nigerite in both samples and associated gahnite in sample N17471 were analyzed with a CAMECA SX-100 |  | | 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 ....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 (issue) | | specimens from Michigan. and the Lake Superior region. The new exhibit are divided into three major sections...reported as microscopic grains in petedunnite. with gahnite. sphalerite. titanite and numerous other minerals...basement rocks of the Berisal complex, Simplon region, Switzerland. Associated minerals are muscovite...derived from Gantertal, a valley in the Simplon region in which the mica occurs. S. Graeser, C.J. Hetherington...of muscovite from the Berisal complex, Simpton region, Switzerland. Can. Mineral., 41,1271-1280. GRAMACCIOLIITE-(Y) |  | | 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...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...bei Rössing l 19 Zeolithe vom Grootbergpaß in Namibia Kamphaugit-(Y) von der Rössing-Mine 120 124 126 |  | | Book | | ("solutions", "melts", and " v a p o r s ' " in this region are not sharply distinguishable). However, this...fluid (supercritical), pass below 400 °C into the region of liquid aqueous solutions. At the same time their...Chemnitz, and several of the veins of the Freiberg region are distinguished by predominant lead-zinc ores...rocks and at contacts with effusive rocks. I n the region of the geosynclines rocks and mineral deposits...contact aureoles. The occurrences of the Nagpur-Kodur region in Bengal are imposing. Owing to the differences |
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