 | | Journal (article/letter/editorial) | | Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology, Geochemistry, and Petrogenesis Gehad M...M. Saleh a a Nuclear Materials Authority, Egypt Published online: 06 Aug 2010. To cite this article:...Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology, Geochemistry, and Petrogenesis, International...Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology, Geochemistry, and Petrogenesis GEHAD M...P.O. Box 530, El-Maadi, Cairo, Egypt Abstract The pegmatite province of the Southeastern Desert (SED) |  | Dill, Harald G., Skoda, Radek, Weber, Berthold, MĂŒller, Axel, Berner, Zsolt A., Wemmer, Klaus, Balaban, Sorin-Ionut (2013) Mineralogical and chemical composition of the Hagendorf-North Pegmatite, SE Germany â a monographic study. Neues Jahrbuch fĂŒr Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 190 (3) 281-318 doi:10.1127/0077-7757/2013/0244 | Journal (article/letter/editorial) | | and chemical composition of the HagendorfNorth Pegmatite, SE Germany â a monographic study Harald G. Dill...Hagendorf-North is a zoned Li-Nb-P-feldspar-quartz pegmatite located W of the village of Hagendorf and about...Hagendorf-South deposit which once was the largest feldspar pegmatite in Central Europe. Hagendorf-North also known...already before the onset of World War II, the pegmatite has no longer been considered an economic target...size in the shadow of this huge Hagendorf-South pegmatite is due to its overall role as feeder system to |  | | Journal (article/letter/editorial) | | which are common to the Hagendorf-Pleystein Pegmatite Province, SE Germany, and present in many ensialic...the most distal part of the pegmatite system (Fig. 4). Towards the pegmatite stock, lithotypes 5 and 6...found around Pleystein in the hanging wall of the pegmatite stock (Fig. 2). 4.2 The lithotypes of the siliceous...planes, a structural setting also known from pegmatite deposits elsewhere in the world (Fig. 7c, d)....The variation of the elements indicated by the âred boxâ (1 st and 3 thd quartiles) shows a narrower |  | | Journal (article/letter/editorial) | | the Nile River or east to the shores of the Red Sea for further transport to the gem-cutting and goldsmithing...and sold many specimens of this beryl. These early red beryl crystals were very small, rather dull colored...Island) in the Red Sea. Possibly the rarest of all beryls, until the discovery of the unique red beryl of Utah...if not rare. A few special words about the Utah red beryl are not amiss here because of its extreme rarity...Smithsonian Institu tion. then, new deposits with red beryl were found in the rhyolites of the Wah Wah |  | 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) | | Schist Belt (western Zimbabwe) 4.3.3. Orange River Pegmatite Belt (Namibia, South Africa) AC 4.3.3.1. Radiometric...4.1. Rare metal granites of the Eastern Desert (Egypt) 4.4.1.1. Radiometric data 4.4.1.2. Mineralogy 4...Radiometric data 4.4.2.2. Mineralogy 4.4.3. Alto-Ligonha Province (northern Mozambique) 4.4.3.1. Radiometric data...3.2. Kamativi Schist Belt 5.3.3. Orange River Pegmatite Belt 5.4. Late Neoproterozoic to early Paleozoic...Eastern Desert (Egypt) 5.4.2. Pegmatites of Ethiopia and Somalia 5.4.3. Alto-Ligonha Province (Mozambique) |  | Graupner, T., Melcher, F., GĂ€bler, H.-E., Sitnikova, M., BrĂ€tz, H., Bahr, A. (2010) Rare earth element geochemistry of columbite-group minerals: LA-ICP-MS data. Mineralogical Magazine, 74 (4) 691-713 doi:10.1180/minmag.2010.074.4.691 | Journal (article/letter/editorial) | | during progressive evolution of the melt in a pegmatite body (either Nb ? Ta or Fe ? Mn fractionation...melt. In general, CGM from each individual Ta-ore province are characterized by a predominance of one type...mineral-melt partitioning during crystallization of the pegmatite body and by secondary hydrothermal or weathering...causing addition, loss or redistribution of REE. Pegmatite bodies may contain up to several generations of...provide constraints on the genesis of rare-element pegmatite systems. Furthermore, it may be used as a valuable |  | | Journal (article/letter/editorial) | | [Ore Geology Reviews 69: 417-561]. Keywords: Pegmatite; applied geomorphology; weathering; heavy minerals;...How does the primary mineral association of the pegmatite affect the supergene alteration and the geomorphological...relevant for the classification of the primary pegmatite as for the evolution of the pegmatitic landscape...classification scheme (Table 2). The tabular Indepencia Pegmatite is taken as an example which crops out on top...landform can be observed at La Elsa, where the pegmatite is surrounded by a mediumgrained holocrystalline |  | Beurlen, H., de Moura, O. J. M., Soares, D. R., Da Silva, M. R. R., Rhede, D. (2011) Geochemical and geological controls on the genesis of gem-quality "Paraiba Tourmaline" in granitic pegmatites from northeastern Brazil. The Canadian Mineralogist, 49 (1) 277-300 doi:10.3749/canmin.49.1.277 | Journal (article/letter/editorial) | | granitic pegmatites of the Borborema Pegmatitic Province (BPP). These PT-bearing pegmatites are rich in...of color-zoned elbaite crystals having a pink to red core and a green to dark green rind. The PT-bearing...are rare, and occur enveloped in quartz of the pegmatite core or in vug fillings. According to electron-microprobe...that PT formed by direct crystallization from a pegmatite-forming melt rich in B, Li and F, at the early...of mafic minerals in the wallrock and in the pegmatite-forming melt itself. Keywords: âParaĂba tourmalineâ |  | | Journal (article/letter/editorial) | | (pseudopegmatite, metapegmatite, pegmatoid, pegmatite, and plutonic pegmatite), the shape and the structure of pegmatites...geodynamic setting. Central Europe has not the largest pegmatite deposits, yet it contains a crustal section with...and composition, with the Hagendorf-Pleystein Pegmatite Field being at the heart of this region, in SE...recent investigations of the Hagendorf-Pleystein Pegmatite Field, one of the best and most intensively studied...get a full-blown 3-dimensional view of the pegmatite province. This regionally focused study was only taken |  | Dill, Harald G., Weber, Berthold, Melcher, Frank, Wiesner, Werner, MĂŒller, Axel (2014) Titaniferous heavy mineral aggregates as a tool in exploration for pegmatitic and aplitic rare-metal deposits (SE Germany) Ore Geology Reviews, 57. 29-52 doi:10.1016/j.oregeorev.2013.08.023 | Journal (article/letter/editorial) | | is +0.85 and around 1 km from the rare-element pegmatite RNbâTi stands at +0.92. âNigrineâ and âantinigrineâ...the western edge of the HagendorfâPleystein pegmatite province are not shown on this map for reasons of...near Pleystein in the HagendorfâPleystein pegmatite province show a rather good sorting (Fig. 2d). A typical...an altitude of between 500 and 1000 m above mean sea level (a.m.s.l.) with rivers draining it mainly towards...WeiĂenstein Hagendorf-Pleystein PingermĂŒhle pegmatite province Pflaumbach Steininger Loh Zollgraben Weiden |  | | Journal (article/letter/editorial) | | INDICATORS OF THE PHYSICOCHEMICAL CONDITIONS OF PEGMATITE FORMATION a Yu. M. Sokolov & V. V. Khlestov ...INDICATORS OF THE PHYSICOCHEMICAL CONDITIONS OF PEGMATITE FORMATION, International Geology Review, 32:11...INDICATORS OF THE PHYSICOCHEMICAL CONDITIONS OF PEGMATITE FORMATION Yu. M. Sokolov and V. V. Khlestov (Institute...chemical composition of pegmatite garnets, especially those the Altay pegmatite belt of the Soviet Union...conditions of the initial and secondary phases of pegmatite formation. Garnet compositions are thus very important |  | | Journal (article/letter/editorial) | | 10.3749/canmin.1600075 THE SVECONORWEGIAN PEGMATITE PROVINCE â THOUSANDS OF PEGMATITES WITHOUT PARENTAL...Sveconorwegian pegmatite province in southern Norway and southwest Sweden hosts seven rareelement pegmatite districts...magmatism during post-orogenic extension. The pegmatite formation principally comprises four periods restricted...sectors). The observed relationships between pegmatite formation and regional high-grade metamorphism...In light of this, the genetic criteria of the pegmatite family classification scheme [NYF versus Lithium-Cesium-Tantalum |  | | Journal (article/letter/editorial) | | aplites of the Pala Chief and Elizabeth R layered pegmatite-aplite dikes, Pala District, California, and the...USA incompatible character of Zn in evolving pegmatite-aplite melts and shows the usefulness of gahnite...measured here may indicate a source of granitic pegmatite-aplite. Keywords Gahnite . Aplite . California...Mg]Al2O4), occurs as an accessory mineral in granitic pegmatite dikes (e.g., NĂȘmec 1973; Batchelor and Kinnaird...Morris et al. 1997; McClenaghan 2005). In granitic pegmatite dikes gahnite is commonly overlooked due to its |  | | Journal (article/letter/editorial) | | PEGMATITE Erste Ăsterreichische Arbeitstagung MontanuniversitĂ€t Leoben 11. April 2014 Zusammenfassung...Melcher MITT.ĂSTERR.MINER.GES. 160 (2014) PEGMATITE - ERSTE ĂSTERREICHISCHE ARBEITSTAGUNG von Johann...MontanuniversitĂ€t Leoben die 1. Arbeitstagung zum Thema Pegmatite statt. Die Veranstaltung wurde vom Department...Geologie und LagerstĂ€ttenlehre) organisiert. Pegmatite sind sowohl aus wirtschaftlichen als auch wissenschaftlichen...hochgradiger Metamorphose gegenĂŒber. Gerade die Pegmatite in den Ostalpen stellen ein Musterbeispiel fĂŒr |  | SĂĄnchez-Muñoz, Luis, MĂŒller, Axel, AndrĂ©s, Sol LĂłpez, Martin, Robert F., Modreski, Peter J., de Moura, Odulio J.M. (2017) The PâFe diagram for K-feldspars: A preliminary approach in the discrimination of pegmatites. Lithos, 272. 116-127 doi:10.1016/j.lithos.2016.10.030 | Journal (article/letter/editorial) | | orogens, such as in the Eastern Brazilian Pegmatite Province as the result of the collision of cratons...significant departures from the bulk composition of the pegmatite-forming magma. Yet there is a pressing need to...representative alkali feldspar from 31 carefully evaluated pegmatite localities covering a wide range of mineralogy...MANUSCRIPT geologist mapping uncharted territory in a pegmatite district. Our aim in this research is to test...be used as a measurable criterion for RI PT pegmatite discrimination, and to suggest elements that are |  | | Journal (article/letter/editorial) | | Manuscript Geology and chemistry of Variscan-type pegmatite systems (SE Germany) With special reference to...Dill, Geology and chemistry of Variscan-type pegmatite systems (SE Germany) With special reference to...pertain. Geology and chemistry of Variscan-type pegmatite systems (SE Germany) - With special reference...D-30167 Hannover, Germany Abstract: The geology of pegmatite systems encompasses lithology, shape, and structure...Zn-Cu-Bi-Rb-Nb in), (2) supergene (Zr-Ti in). Key words: Pegmatite; lithology; structural geology; chemistry; Variscan-type |  | | Journal (article/letter/editorial) | | Tools and Workflows for Grassroots LiâCsâTa (LCT) Pegmatite Exploration Benedikt M. Steiner Camborne School... This paper reviews the main controls of LCT pegmatite genesis relevant to mineral exploration programs...as industrial mineral deposits. Keywords: LCT; pegmatite; lithium; exploration; targeting 1. Introduction...decades research into rare metal LiâCsâTa (LCT) pegmatite mineralisation has predominantly focused on the...mineral exploration techniques applied to LCT pegmatite mineralisation have been published, covering (i) |  | | Report (chapter) | | (e-mail: tkachev@sgm.ru) Abstract: Since c. 3.1 Ga, pegmatite mineral deposits in orogenic areas have been formed...by pegmatites in Gondwanan blocks only. Each pegmatite class is characterized by a life cycle of its...PalaeozoicâMesozoic boundary. The miarolitic class of pegmatite deposits in orogenic setting first came into being...dominated the pegmatite metallogeny of many Phanerozoic belts. The evolution of the pegmatite classes was...al. (1975)âs study assessed the intensity of pegmatite generation through the Earthâs history not merely |  | | Journal (article/letter/editorial) | | Sources of Colored Gemstones Simmonsite, Zapot pegmatite, Gillis Range, Mineral Co., Nevada, USA. Named...miarolitic cavities found near the centers of pegmatite bodies or in reaction zones between pegmatites...occur in pegmatites (Simmons 2007). Historically, pegmatite deposits in Brazil, Madagascar, Russia, and the...quartz or feldspar in the core or core margin of a pegmatite Aquamarine (green-blue to blue beryl variety)...massive quartz or feldspar of the centrally located pegmatite core zone or in the core margin, the region around |  | | Journal (article/letter/editorial) | | PEGMATITES FROM THE PAMPEAN PEGMATITE PROVINCE, ARGENTINA: IMPLICATIONS FOR PEGMATITE FRACTIONATION ADRIANA...Sin Nombre pegmatites) and Conlara (Nancy pegmatite) pegmatite districts, Argentina, was analyzed to investigate...relationship between its chemistry, pegmatite mineralogy, and pegmatite melt evolution. Based on the molecular...for granitic pegmatites. Gahnite from the Nancy pegmatite has higher Mg and Mn contents than gahnite from...from the pegmatites of the Comechingones pegmatite district. Chemical variation within gahnite crystals |  | | Journal (article/letter/editorial) | | mineralization of the Hagendorf-Pleystein pegmatite province, Germany: with special reference to laser-ablation...aplitic and pegmatitic rocks of the Hagendorf Pegmatite Province. Three different supergene U mineral successions...brannerite) by their conspicuous yellow, green, brown or red colours. Under speciïŹc supergene conditions, they...the position of the study area (Hagendorf Pegmatite Province) in the NE Bavarian Basement and sites mineralized...373 The Hagendorf pegmatite is not classed as an economic uraniferous pegmatite such as Bancroft, Canada |  | Beurlen, H., Thomas, R., Melgarejo, J. C., Da Silva, J. M. R., Rhede, D., Soares, D. R., Da Silva, M. R. R. (2013) Chrysoberyl-sillimanite association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration. Journal of GEOsciences, 58 (2) 79-90 | Journal (article/letter/editorial) | | te association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration...occurrence of chrysoberyl in the Borborema Pegmatite Province (BPP) in northeastern Brazil is reported...boulders in the dumps covering the Roncadeira pegmatite, worked in the 1940âs for Sn- and Ta-ore concentrate...crosscutting banded sodic aplite facies of the pegmatite. Along the crystal borders, the chrysoberyl (Cbl)...chrysoberyl, metamorphosed REL-pegmatite, SeridĂł Belt, Borborema Province, Brazil Received: 8 February |  | | Journal (article/letter/editorial) | | References Mt Cassiterite (Wodgina), Australia pegmatite 2890â2,830 35 50 250 5 \60 Sn (Sweetapple...(Sweetapple and Collins 2002) Greenbushes, Australia pegmatite 2,527 192 500 Li, Sn (Partington 1990; Partington...KlementovaÌ and Rieder 2004) Tanco, Canada pegmatite 2,576 25 56 300 5.4 100 Cs, Li (Stilling...Mozambique) pegmatite 950â990 nk nk nk nk nk Sn (Pohl 2011) Volta Grande, Brazil pegmatite 1,930...150 Abu Dabbab, Egypt Ta-granite 560 44.5 80 205 2.5 nk Sn Nuweibi, Egypt Ta-granite 560 |  | Dill, H. G., Skoda, R., Weber, B., Berner, Z. A., Muller, A., Bakker, R. J. (2012) A Newly Discovered Swarm of Shear-Zone-Hosted Bi-As-Fe-Mg-P-Rich Aplites and Pegmatites in the Hagendorf-Pleystein Pegmatite Province, Southeastern Germany: A Step Closer to the Metamorphic Root of Pegmatites. The Canadian Mineralogist, 50 (4) 943-974 doi:10.3749/canmin.50.4.943 | Journal (article/letter/editorial) | | AND PEGMATITES IN THE HAGENDORFâPLEYSTEIN PEGMATITE PROVINCE, SOUTHEASTERN GERMANY: A STEP CLOSER TO THE...Miesbrunn pegmatiteâaplite swarm (MPAS), part of the HagendorfâPleystein pegmatite province, southeastern...of mineralization at the deepest parts of the pegmatite, close to its root zone, and on the other, within...pegmatites (i.e., not exposed). Keywords: shear zone, pegmatiteâaplite swarm, phosphate, sulfide, arsenide, Miesbrunn...Robles et al. 1998). The HagendorfâPleystein pegmatite province at the western edge of the Bohemian Massif |  | Bermanec, V., Horvat, M., Zigovecki GOBAC, Z., Zebec, V., Scholz, R., Skoda, R., Wegner, R., Brito Barreto, S. d., Dodony, I. (2012) Pseudomorphs of Low Microcline After Adularia Fourlings from the Alto Da Cabeca (Boqueirao) and Morro Redondo Pegmatites, Brazil. The Canadian Mineralogist, 50 (4) 975-987 doi:10.3749/canmin.50.4.975 | Journal (article/letter/editorial) | | low microcline, adularia, pseudomorph, granitic pegmatite, Brazil. Introduction The evolution of alkali...Si order in adularia crystals taken from two pegmatite bodies. The aim is to discuss original symmetry...of the Samples The Alto da Cabeça (BoqueirĂŁo) pegmatite is located 3 km east of the city of Parelhas in...2008) (Fig. 1). It belongs to the Borborema Pegmatite Province, which extends over an area of approximately...(Scorza 1944). The Alto da Cabeça (BoqueirĂŁo) pegmatite extends over 410 m WNWâESE, with a maximal width |
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