 | | 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) |  | | Journal (article/letter/editorial) | | Sources of Colored Gemstones Simmonsite, Zapot pegmatite, Gillis Range, Mineral Co., Nevada, USA. Named...gem-quality crystals of beryl, tourmaline, topaz, spodumene, and spessartine. Historic localities are found...miarolitic cavities found near the centers of pegmatite bodies or in reaction zones between pegmatites...tourmaline (see Pezzotta and Laurs 2011), topaz, spodumene, and spessartine (FIGS . 1, 2; TABLE 1). More...occur in pegmatites (Simmons 2007). Historically, pegmatite deposits in Brazil, Madagascar, Russia, and the |  | 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) | | Borborema Pegmatitic Province (BPP). These PT-bearing pegmatites are rich in spodumene or lepidolite, and...of color-zoned elbaite crystals having a pink to red core and a green to dark green rind. The PT-bearing...intensive late replacement of primary K-feldspar, spodumene, elbaite and Li-phosphates by lepidolite. The...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 |  | | Journal (article/letter/editorial) | | ARTICLE Tantalite-(Mn) from the Borborema Pegmatite Province, northeastern Brazil: conditions of formation...tantalite-(Mn) from the Alto do Giz pegmatite in the Borborema Pegmatite Province, northeastern Brazil were investigated...The results demonstrate that in the Alto do Giz pegmatite, water- and alkaline carbonate-rich fluids and...crystallized during pegmatite formation, this mechanism must also have implications for pegmatite genesis in general...Keywords Tantalum pegmatite . Melt inclusions . Fluid inclusions . Borborema province . Brazil Introduction |  | | Journal (article/letter/editorial) | | Tools and Workflows for Grassroots Li–Cs–Ta (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 Li–Cs–Ta (LCT) pegmatite mineralisation has predominantly focused on the...mineral exploration techniques applied to LCT pegmatite mineralisation have been published, covering (i) |  | | Journal (article/letter/editorial) | | LCT-family granitic pegmatites of the Pampean pegmatite province in Argentina are evaluated. In general, the...petalite-subtype pegmatites of the El Quemado pegmatite field carry more evolved CGM, from manganocolumbite...pegmatites, known to date from the El Totoral pegmatite field, contain CGM with oscillatory zoning, with...postorogenic beryl-type pegmatites from the Punilla pegmatite field corresponds to ferrocolumbite slightly enriched...éléments rares de la famille LCT provenant de la province Pampéenne d’Argentine. En général, ces minéraux |  | | Journal (article/letter/editorial) | | PEGMATITE Erste Österreichische Arbeitstagung Montanuniversität Leoben 11. April 2014 Zusammenfassung...Melcher MITT.ÖSTERR.MINER.GES. 160 (2014) PEGMATITE - ERSTE ÖSTERREICHISCHE ARBEITSTAGUNG von Johann...Montanuniversität Leoben die 1. Arbeitstagung zum Thema Pegmatite statt. Die Veranstaltung wurde vom Department...Geologie und Lagerstättenlehre) organisiert. Pegmatite sind sowohl aus wirtschaftlichen als auch wissenschaftlichen...hochgradiger Metamorphose gegenüber. Gerade die Pegmatite in den Ostalpen stellen ein Musterbeispiel für |  | | 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 |  | Graupner, T., Melcher, F., Gäbler, H.-E., Sitnikova, M., Brätz, 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) | | The Li-Bearing Pegmatites from the Pampean Pegmatite Province, Argentina: Metallogenesis and Resources...The Li-Bearing Pegmatites from the Pampean Pegmatite Province, Argentina: Metallogenesis and Resources...pegmatites of the Pampean Pegmatite Province (PPP) occur in a rareelement pegmatite belt developed mainly...them are of complex type and spodumene subtype, some are of albite-spodumene type, and a few of petalite...Known combined resources add up 200,000 t of spodumene, with variable grades between 5 and 8 wt.% Li2 |  | | Journal (article/letter/editorial) | | Pilbara pegmatite province in the Archean North Pilbara Craton contains at least 120 pegmatite deposits...deposits in over 27 pegmatite groups and fields, including the giant Mount Cassiterite tantalum orebody in...in the Wodgina pegmatite district. Generally, rare metal pegmatites in the province are hosted by mafic-ultramafic...that have given rise to different petrogenetic pegmatite suites can be identified in processed radiometric...character that permitted formation of significant pegmatite mineralization. They represent the culmination |  | 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) | | 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) |  | | Journal (article/letter/editorial) | | Rare-element Pegmatites and Granites from the Totoral Pegmatite Field, San Luis, Argentina Julio Oyarzábal,1*...southernmost pegmatitic field of the Pampean pegmatite province in Argentina. The variation of K/Rb-Cs, K/Cs-Rb...beryl-columbite-phosphate pegmatites → complex type of spodumene subtype pegmatites → albitespodumene type → albite...geochemistry, K-feldspar—muscovite, rare-element pegmatite, S-type granite, Totoral pegmatitic field. 1....albite, quartz and muscovite are the main granitic pegmatite rock-forming minerals and their compositional |  | | 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., Nêmec 1973; Batchelor and Kinnaird...Morris et al. 1997; McClenaghan 2005). In granitic pegmatite dikes gahnite is commonly overlooked due to its |  | Strmić Palinkaš, , Palinkaš, , Neubauer, , Scholz, , Šoštarić, , Bermanec, (2019) Formation Conditions and 40Ar/39Ar Age of the Gem-Bearing Boqueirão Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil. Minerals, 9 (4) 233 doi:10.3390/min9040233 | Journal (article/letter/editorial) | | 40Ar/39Ar Age of the Gem-Bearing Boqueirão Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil Sabina...granitic pegmatite, alias Alto da Cabeça pegmatite, is situated in Borborema Pegmatitic Province (BPP) in...in Northeast Brazil. This pegmatitic province hosts globally important reserves of tantalum and beryllium...studied lithium-cesium-tantalum Boqueirão granitic pegmatite intruded meta-conglomerates of the Equador Formation...Ma; 40 Ar/39 Ar plateau age of muscovite). The pegmatite exhibits a typical zonal mineral pattern with |  | | Journal (issue) | | in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………... R., MENUGE, J.F., ZACK, T. Rb-Sr studies of spodumene pegmatites and associated rocks in Leinster, Ireland…………………8...rare-element class pegmatites in the Borborema Province in NE-Brazil?...................................paleoclimate controls of lithium-cesium-tantalum (LCT) pegmatite genesis, exhumation, and preservation……………………...earth element mineralization in a rediscovered pegmatite in the Stettin Complex, Wausau Syenite Compley |  | | Corporate Document | | in seven exploration tenements in the Catamarca Province, prospective for Lithium Pegmatites. On the...together host in excess of twenty Lithium bearing pegmatite deposits documented by various authors in publications...geologists of exposures of spodumene in old mine workings in two pegmatite deposits within the claim applications...claim applications cover the Vilisman and Ancasti Pegmatite Groups referred to in the Company’s announcement...Figure 1: Location of the mining friendly Catamarca Province, its capital, and the Ancasti Ranges in NW Argentina |  | | 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) | | trace-element data on quartz from the Borborema Pegmatite Province, northeast Brazil H. BEURLEN1,*, A. MÜLLER2...the rare-element class from the Borborema Pegmatite Province in northeast Brazil were analysed for fourteen...zone to the quartz core of pegmatites of the spodumene or lepidolite subtypes. The Ge concentrations...degree of magma fractionation and analyses of pegmatite quartz cores can be used for exploration purposes...2002). In comparison, studies of the chemistry of pegmatite quartz are relatively rare (e.g. Schrön et al |  | | Journal (article/letter/editorial) | | of the pegmatites of the Eastern Brazilian Pegmatite Province Received: 27 October 1998 / Accepted: 22...precious stones for the Eastern Brazilian Pegmatite Province (EBPP) has been evaluated on the basis of...is the largest pegmatite province of South America. It was divided into the pegmatite districts of ItambeÂ...versus Ta/(Ta+Nb), and U, Na2O versus K/Cs for the pegmatite districts of AracËuaõÂ and Sa®ra show the widest...widest range in fractionation. These pegmatite districts are leaders in the production of gemquality tourmaline |  | | 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 |  | Morozova, Lyudmila, Zozulya, Dmitry, Selivanova, Ekaterina, Serov, Pavel, Bazai, Aya (2022) Distribution of Trace Elements in K-Feldspar with Implications for Tracing Ore-Forming Processes in Pegmatites: Examples from the World-Class Kolmozero Lithium Deposit, NW Russia. Minerals, 12 (11) 1448 doi:10.3390/min12111448 | Journal (article/letter/editorial) | | variability and fractionation degree of albite-spodumene and barren feldspar pegmatites of the Kolmozero...Kola region, Russia. K-feldspar from albite-spodumene pegmatite is represented by two generations: early...K-feldspar from feldspar pegmatites of the Kolmozero pegmatite field differs from those in the Kolmozero Li deposit...albite-spodumene pegmatites. These trends reflect different fractionation degrees of pegmatite evolution...respect of tracing the rare element enrichments in pegmatite systems. A model is proposed for the formation |  | Soares, D. R., Beurlen, H., Barreto, S. d. B., Da Silva, M. R. R., Ferreira, A. C. M. (2008) COMPOSITIONAL VARIATION OF TOURMALINE-GROUP MINERALS IN THE BORBOREMA PEGMATITE PROVINCE, NORTHEASTERN BRAZIL. The Canadian Mineralogist, 46 (5) 1097-1116 doi:10.3749/canmin.46.5.1097 | Journal (article/letter/editorial) | | TOURMALINE-GROUP MINERALS IN THE BORBOREMA PEGMATITE PROVINCE, NORTHEASTERN BRAZIL Dwight Rodrigues SOARES§...rare-element-class granitic pegmatites from the Borborema Pegmatite Province (BPP), northeastern Brazil. Tourmaline from...geochemical evolution trend of tourmalines among the pegmatite bodies investigated (vacancy at the X site, Fe...indicator of the degree of evolution of the hosting pegmatite. According to these data,”Paraíba tourmaline”-producing...Keywords: tourmaline, Paraíba, Borborema Pegmatite Province, pegmatite evolution, mineral composition, Brazil |  | Li, Peng, Li, Jiankang, Chou, I-Ming, Wang, Denghong, Xiong, Xin (2019) Mineralization Epochs of Granitic Rare-Metal Pegmatite Deposits in the Songpan–Ganzê Orogenic Belt and Their Implications for Orogeny. Minerals, 9 (5) 280 doi:10.3390/min9050280 | Journal (article/letter/editorial) | | Mineralization Epochs of Granitic Rare-Metal Pegmatite Deposits in the Songpan–Ganzê Orogenic Belt and...Experimental Study under Deep-sea Extreme Conditions, Institute of Deep-sea Science and Engineering, Chinese...2019 Abstract: Granitic pegmatite deposits, which are usually products of orogenic...Xuebaoding, Zhawulong, and Ke’eryin rare metal pegmatite deposits are located in the southern, western...ages of 189.4 ± 1.1 Ma and 187.0 ± 1.1 Ma from spodumene pegmatites of the Dahongliutan deposit. We also |  | | Journal (article/letter/editorial) | | Mines and Minerals of the California Pegmatite Province Downloaded by [Pennsylvania State University]...the past century, the Southern California pegmatite province has been the source of some of the world’s...occurrence of the lavender-colored gem variety of spodumene now known as kunzite. Since the beginning of mining...left page). Map of the Southern California pegmatite province, including location of major specimen-producing...Geology and Geography The Southern California pegmatite province is a mountainous, semiarid region located |
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