| | 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) | LCT-family granitic pegmatites of the Pampean pegmatite province in Argentina are evaluated. In general, the...different pegmatites. The petalite-subtype pegmatites of the El Quemado pegmatite field carry more evolved...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) | 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) | 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...some are of albite-spodumene type, and a few of petalite subtype. The origin of the pegmatites is attributed...rare-element pegmatites present in the Pampean Pegmatite Province (PPP) that possess discrete mineralization | | | 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) | 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 (volume) | . . . . . . . . . . . . . . . . . . . . 14 PEGMATITE OCCURRENCES . .. .. . .........................18 THE PEGMATITE OCCURRENCE OF LUOLAMÄKI . . . . . . . . . . . . . . . . . . . 19 PEGMATITE OCCURENCES...to occur in connection with synorogenie rocks. Pegmatite dikes and lumps containing beryl are found mostly...from coarse-grained varieties of granite, i.e., pegmatite occurrences. It was in 1956 that the Geological...Finland undertook to investigate and map out pegmatite occurrences as part of its systematic work program | | 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) | resource et al. 2012 this issue). This type of pegmatite contains base”: South America has reserves of...Southeast Asia and B). For example ores in the Tanco pegmatite (Manitoba, (10%), Russia and the Middle East (10%)...lithium hydroxide. By far the most important Li pegmatite is the Greenbushes deposit, which produced roughly...com; accessed December 2011). The Greenbushes pegmatite is also the major source of technical-grade Li...understood. Lithium has also been produced from petalite in complex-type pegmatites in the past (e.g. Bikita | | Novák, M., Ertl, A., Povondra, P., Galiová, M. V., Rossman, G. R., Pristacz, H., Prem, M., Giester, G., Gadas, P., Škoda, R. (2013) Darrellhenryite, Na(LiAl2)Al6(BO3)3Si6O18(OH)3O, a new mineral from the tourmaline supergroup. American Mineralogist, 98 (10) 1886-1892 doi:10.2138/am.2013.4416 | Journal (article/letter/editorial) | It occurs in a complex (Li-bearing) petalite-subtype pegmatite with common lepidolite, Li-bearing tourmalines...Moldanubian Zone, Czech Republic. This zoned pegmatite dike cross-cuts a serpentinite body enclosed in...(var. cleavelandite), minor quartz, K-feldspar, petalite, rare polylithionite, and locally rare pollucite...(Li-bearing) pegmatite at Nová Ves near Český Krumlov, southern Bohemia, Czech Republic. The pegmatite belongs...Moldanubian pegmatite province along with about 100 other lepidolite- and elbaite-subtype pegmatite bodies | | | Journal (article/letter/editorial) | complex type granitic pegmatite of an Li-Cs-Ta enriched (LCT) family from Nagatare pegmatite, Fukuoka Prefecture...type-A. The mineral species from the Nagatare pegmatite were schorl, fluor-schorl, elbaite, fluor-elbaite...and schorl. The tourmaline from the Nagatare pegmatite has similar major chemical components but different...11-0.38 apfu) is characteristic of the Nagatare pegmatite. In type-E, the rim showed greater Fe and Mn contents...of the pegmatite formation. Keywords: Elbaite, Fluor-elbaite, Rossmanite, Nagatare, LCT pegmatite INTRODUCTION | | | Journal (article/letter/editorial) | quickly become lost in geology, geography, and pegmatite theory, particularly as presented in this book...ends with pegmatite classification, a second section that discusses the eastern pegmatite province, and a...therefore, chapters on beryl-rich pegmatites, pegmatite deposits of gem tourmaline, and those of importance...sections that include such interesting discussions as petalite deposits, phenakite-rich pegmatites, euclase...from deposits on the African continent: Botswana, Egypt, Madagascar, Morocco, Namibia, Congo, and Tanzania | | | 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 | | 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 (article/letter/editorial) | Kenticha mine (Ethiopia) and in the Alto Ligonha Province (Mozambique). Production from pegmatites and related...typical of the Alto Ligonha Province (Mozambique), the Arabian-Nubian Shield (Egypt, Ethiopia) and the Tantalite...1992; Černý et al., 2005). The provenance of pegmatite magmas remains poorly understood. Based on a study...affiliation and rare-element signature of the granite-pegmatite systems”. Peraluminous granites and associated...former Rhodesia (now Zimbabwe), Katanga (former province of the DRC) and Nigeria. Democratic Republic of | | | Journal (article/letter/editorial) | EXAMPLE FROM THE VELASCO DISTRICT, PAMPEANA PEGMATITE PROVINCE, ARGENTINA, AND REVIEW OF WORLDWIDE OCCURRENCES...of the Velasco district from the Pampeana Pegmatite Province, Argentina, contain varieties of green, yellow...fractionation, Velasco District, Pampeana Pegmatite Province, Argentina. INTRODUCTION Beryl is a relatively...large and economically important Pampeana Pegmatite Province, Argentina, are very limited. The only available...Córdoba (Colombo & Lira 2006). In the Velasco pegmatite district, beryl constitutes the most important | | Kesler, Stephen E., Gruber, Paul W., Medina, Pablo A., Keoleian, Gregory A., Everson, Mark P., Wallington, Timothy J. (2012) Global lithium resources: Relative importance of pegmatite, brine and other deposits. Ore Geology Reviews, 48. 55-69 doi:10.1016/j.oregeorev.2012.05.006 | Journal (article/letter/editorial) | Global lithium resources: Relative importance of pegmatite, brine and other deposits Stephen E. Kesler a...online 14 May 2012 Keywords: Lithium Resource Pegmatite Brine Salar Evaporite Electric vehicle Lithium-ion...geological features of the best characterized pegmatite, brine and other types of lithium deposits and...an order of magnitude larger than the average pegmatite deposit (0.11 Mt Li) and that brine deposits,...for large-scale, long-term production than do pegmatite deposits. However, individual brine deposits differ | | Dittrich, Thomas, Seifert, Thomas, Schulz, Bernhard, Hagemann, Steffen, Gerdes, Axel, Pfänder, Jörg (2019) Archean Rare-Metal Pegmatites in Zimbabwe and Western Australia - Geology and Metallogeny of Pollucite Mineralisations. Springer International Publishing. doi:10.1007/978-3-030-10943-1 | Book | and mineable quantities only from the two LCT pegmatite deposits at Bikita in the Zimbabwe Craton and...occurs in monomineralic mineralisation. Both pegmatite deposits have a comparable regional geological...July 2011 and June 2016, where a total of 19 pegmatite districts were inspected and sampled. The second...their formation, the v vi Preface Bikita pegmatite was included in the study. This book presents...his supervision and introduction to the Bikita pegmatite field. We are particularly grateful to Bikita Minerals | | | Journal (article/letter/editorial) | Tourmaline-group minerals in the Naipa Li-Cs-Ta granitic pegmatite group, Mozambique: tracers of magmatic to postmagmatic...Tourmalines from the Naipa Li-Cs-Ta granitic pegmatite group and metasomatized adjacent host rock were...strong fractionation of an (Na, Al, Li, B)-rich pegmatite, which had Ca at the time of emplacement. ‘Fluor-liddicoatite’...metasomatized chlorite phyllite adjacent to the granitic pegmatite group resulted from the mixing of magmatic-hydrothermal...elbaite, liddicoatite, zoned crystals, granitic pegmatite group, metasomatized host rock, dravite, Naipa | | | 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 | | | Journal (article/letter/editorial) | Netherlands Contrasting Geochemistry of Two Pegmatite Fields in Manitoba: Products of Juvenile Aphebian...Cern:~, P., 1989. Contrasting geochemistry of two pegmatite fields in Manitoba: products of juvenile Aphebian...Wekusko Lake pegmatite field, in the Flin Flon-Snow Lake greenstone belt of the Churchill Province, is remarkably...Kenoran Cat Lake-Winnipeg River pegmatite field in the Superior Province and its analogs elsewhere in Archean...Archean cratons. Comparable pegmatite types at Wekusko Lake are slightly depleted in Li, considerably | | | Journal (issue) | in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...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...REIMER, W. Mineralogical study of the Gonçalo Li-pegmatite deposit, Portugal……………………………………..23 FALSTER, | | Ashworth, L., Kinnaird, J.A., Nex, P.A.M., Harris, C., Müller, A.B. (2020) Origin of rare-element-mineralized Damara Belt pegmatites: A geochemical and light stable isotope study. Lithos, 372. 105655pp. doi:10.1016/j.lithos.2020.105655 | Journal (article/letter/editorial) | were used to identify possible sources for these pegmatite melts. Two groups of pegmatites can be identified...U-enriched pegmatitic SLGs with a Nb–Y–F (NYF) pegmatite affinity (Nex and Kinnaird, 2007; Freemantle,...source of compositional variability in LCT and NYF pegmatite melts. 1. Introduction Granitic pegmatites are...field exposure. Here, post- Jo ur orogenic pegmatite dikes have been emplaced in metasedimentary and...and H-isotope studies to identify the source of pegmatite magmas, as a source of mineralogical heterogeneity | | | Journal (article/letter/editorial) | quickly become lost in geology, geography, and pegmatite theory, particularly as presented in this book...ends with pegmatite classification, a second section that discusses the eastern pegmatite province, and a...therefore, chapters on beryl-rich pegmatites, pegmatite deposits of gem tourmaline, and those of importance...sections that include such interesting discussions as petalite deposits, phenakite-rich pegmatites, euclase | | | Journal (article/letter/editorial) | vapor inclusions in spodumene from the Tanco pegmatite, Manitoba, under confining pressure. At 25 8C...exercise caution when using thermobaric estimates of pegmatite crystallization inferred from microthermometric...microthermometry, spodumene, crystal-rich inclusions, pegmatite, hydrothermal diamond anvil cell. INTRODUCTION...Keketuohai no. 3 (aka Koktogay no. 3) rare-element pegmatite, Xinjiang, China, Lu et al. (1997) reported homogenization...crystal-rich inclusions from the Tanco rare-element pegmatite, Manitoba, under an external pressure of 200 MPa |
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