 | | 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) | | 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 (issue) | | 2023 Articles Minerals of the Espirito Santo Pegmatite District, Eastern Brazil.. ......697 by M. L....northeastern region of Minas Gerais looking for pegmatite minerals. Thus, his collection contains almost...single 2-cm octahedron of scheelite, deep orange-red, and a small twisted thread of gold! It remains one...MINING VENTURES Minerals of the Espirito Santo Pegmatite District Eastern Brazil Mario Luiz de Sá C. Chaves1...euclase, scapolite, quartz (amethyst), andalusite, fluorite and fluorapatite. INTRODUCTION BY CARLOS CORNEJO |  | | Journal (article/letter/editorial) | | minerals as well as talc, clay minerals, barite and fluorite are widespread in the country rocks south of the...fractionated granitic members of the Variscan pluton. Pegmatite skarn has a strong subcrustal component as to...constrain the physico-chemical regime in this mineral province, covering the temperature range from 745°C down...minerals, iron, and uranium. Accumulations of fluorite and barite are subeconomic in mineral assemblages...of industrial minerals such as talc, barite and fluorite, all of which are intergrown with calcite, dolomite |  | | 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 “red box” (1 st and 3 thd quartiles) shows a narrower |  | | 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 |  | Lira, R., Galliski, M. A., Bernard, F., Roquet, M. B. (2012) The Intragranitic Potrerillos NYF Pegmatites and Their a-Type Host Granites of the las Chacras - Potrerillos Batholith, Sierra de San Luis, Argentina. The Canadian Mineralogist, 50 (6) 1729-1750 doi:10.3749/canmin.50.6.1729 | Journal (article/letter/editorial) | | in the Sierras Pampeanas Orientales of San Luis Province, Argentina, consist of mediumsized bodies with...K-feldspar and, locally, pods of primary fluorite. The pegmatite-forming minerals are quartz, microcline...biotite, muscovite, tourmaline, beryl, allanite, fluorite, fluorapatite, ilmenite, niobian rutile, rutile...biotite-bearing equigranular red granite, and muscovite-bearing equigranular red granite. All of them have...enriched in P, Zr, Sr and Ba and LREE relative to the red equigranular muscovite bearing facies of the Potrerillos |  | | Report (issue) | | pinacoid {001} is conspicuous. Topaz crystals from pegmatite pockets are commonly etched, and crystals from...opened pegmatite about 2 km from Sibiri on the banks of the Basha River in Gilgit-Baltistan Province, Pakistan...yellow to yellow-brown, brown, orange, pink, and red. It fluoresces (rarely) yellow to orange, green-yellow... and quartz, with inclusions of margarite and fluorite. volcanic deposits should be drier and shallower...porphyry deposits intermediate in water content, and pegmatite deposits deeper and wetter. However, a study of |  | | Journal (issue) | | M. B. Auguste & G. Bonin Fluorite from Riemvasmaak, Northern Cape Province, South Africa . . . . ...from Mount Xuebaoding, Pingwu County, Sichuan Province, China. Rob Lavinsky collection, ex James Horner...The Sapo mine exploits a thick sub-horizontal pegmatite that was discovered in 1985 and has produced large...town of Conselheiro Pena, in the important pegmatite province that extends from around Governador Valadares...the border of EspĂrito Santo state. The various pegmatite bodies fall within the municĂpios (counties) of |  | | Journal (article/letter/editorial) | | minerals with a fixed high F content, such as fluorite, local assemblages of minerals and the degree...prĂ©sence de minĂ©raux Ă teneur en F Ă©levĂ©e fixe, la fluorite par exemple, l’assemblage local des minĂ©raux,...of tourmaline data from the McCombe granitic pegmatite provides evidence of magmatic fractionation trends...tourmaline (Tindle et al. 2003, 2005). The McCombe pegmatite is a complex type and spodumene subtype member...boundary-zone, Ontario, in the Superior Province of the Canadian Shield. The pegmatite dike cuts mafic metavolcanic |  | | Journal (article/letter/editorial) | | de/chemer The baryte-bearing beryl-phosphate pegmatite Plössberg—A missing link between pegmatitic and...December 2010 Accepted 10 July 2011 Keywords: Pegmatite Barium Phosphate Shear-zone NE Bavaria SE Germany...1972; Strunz et al., 1975) (Fig. 1a). The pegmatite province has been for decades a site which was studied...rocks and sparked the present investigation. The pegmatite near Plössberg, located approximately 18 km NNW...Pleystein–Hagendorf–Waidhaus region (Fig. 1b). This pegmatite is strongly enriched in baryte and has been taken |  | | Journal (issue) | | Brazil and is reliably reported to come from a pegmatite in Minas Gerais. The base is tourmaline with a...60. In LW UV it is inert, but in SW UV it shows red fluorescence. These properties indicate moonstone...from the Vishnevye Mts. in the Urals, a famous pegmatite region about 100 km south of Ekaterinberg, were...the suns tone is inert, but in SW UV it shows dark red fluorescence. The cause of chatoyancy is visible...former USSR. The cat's-eye weighs 2.27 ct, is pinkish-red, with RI (measured on a flat, polished base) of 1 |  | | Journal (article/letter/editorial) | | at the Zenith deposit, Southwestern Grenville Province, Renfrew area, Ontario, Canada—S. Salvi 77 CONTRIBUTIONS...Baltic Shield and the adjacent part of the Barents Sea shelf plate—E.V. Isanina, M.L. Verba, N.M. Ivanova...Geochemical dynamics of the Atlantis II Deep (Red Sea): II. Composition of metalliferous sediment pore...precious-metal ores in the western Mediterranean province (CĂ©vennes, France - Sardinia, Italy)— P. BĂ©ziat...R. Oyarzun B121 Agua Rica prospect, Catamarca province, Argentina: An example of deposit evaluation based |  | | Journal (article/letter/editorial) | | very narrowly spaced and almost vertical. (b) Rusty red saprolite with relic corestones of metapyroxenite...motion of the weathering material is denoted by the red arrowheads. Minerals 2018, 8, 470 6 of 43 2.2...after after [23]). [22]). The area framed with the red line is the area essential for the accumulation of...of gemstones attaining a The area framed with the red line is the area essential for the accumulation of...economic importance. (b) The topmost part of a pegmatite layer which was worked for a size of economic |  | | 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 |  | | Journal (issue) | | beautiful emerald-green, indicolite-blue and rubellite-red colors with green terminations. Continued sporadic...with tourmaline, have sustained the Golconda pegmatite field’s reputation as among the most important...districts in all of Brazil. INTRODUCTION The Golconda Pegmatite Field is a familiar name to mineral collectors...for mica produced in Minas Gerais. A rich, new pegmatite deposit in the Brazilian Golconda area, best known...including the region now known as the Eastern Pegmatite Province. Just below the center can be seen the Rio |  | | Journal (article/letter/editorial) | | amphibole-bearing pegmatites (Pl + Qz + Amp + Kfs + fluorite + allanite) hosted by the Fe-skarn, and c) tourmaline-bearing...and belong to the Moldanubian rare-element pegmatite province. They show distinct degree of textural differentiation...Al-poor tourmalines) higher in the less evolved pegmatite bodies in the Fe-skarn. The tourmaline-bearing...pegmatites were evidently generated from the granite–pegmatite body in the footwall contact of the Fe-skarn....respective parts of the parental Footwall granite–pegmatite body. This observation seems consistent with the |  | | Report (issue) | | Alfredo Petrov and Rupert Hochleitner Page 98 Beryl Red and Green William "Skip" Simmons and Alexander Falster...William "Skip" Simmons and Alexander Falster, pegmatite specialists from the University of New Orleans...widely used (see page 22). These include aquamarine, red beryl, morganite, emerald, goshenite, and heliodor...emerald; "beryllus" is the Latin term for beryl; "sea green beryllus" referred to aquamarine; and "chrysoberyllus"...to white, blue, green, yellow to brown, pink, and red. A number of varietal names are widely, though imprecisely |  | Abdel Gawad, Ahmed E., Ene, Antoaneta, Skublov, Sergey G., Gavrilchik, Alexandra K., Ali, Mohamed A., Ghoneim, Mohamed M., Nastavkin, Aleksey V. (2022) Trace Element Geochemistry and Genesis of Beryl from Wadi Nugrus, South Eastern Desert, Egypt. Minerals, 12 (2) 206 doi:10.3390/min12020206 | Journal (article/letter/editorial) | | of Beryl from Wadi Nugrus, South Eastern Desert, Egypt Ahmed E. Abdel Gawad 1, * , Antoaneta Ene 2, * ...of Beryl from Wadi Nugrus, South Eastern Desert, Egypt. Minerals 2022, 12, 206. https://doi.org/ Nuclear...Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt; dr_mohamed1966@yahoo.com (M.A.A.); moh.gho@mail...Roman mines at Wadi Nugrus, South Eastern Desert of Egypt. It ranges from small crystals to 10 mm in size...trace element geochemistry; zoning; Wadi Nugrus; Egypt Academic Editor: Frederick Lin Sutherland Received: |  | Zhu, Zeying, Wang, Rucheng, Marignac, Christian, Cuney, Michel, Mercadier, Julien, Che, Xudong, Lespinasse, Marc-Yves (2018) A new style of rare metal granite with Nb-rich mica: The Early Cretaceous Huangshan rare-metal granite suite, northeast Jiangxi Province, southeast China. American Mineralogist, 103 (10) 1530-1544 doi:10.2138/am-2018-6511 | Journal (article/letter/editorial) | | Huangshan rare-metal granite suite, northeast Jiangxi Province, southeast China Zeying Zhu1,2, Rucheng Wang1...columbite, there is abundant Hf-rich zircon, Y-rich fluorite, and Th-rich fluocerite included in the Huangshan...Yichun granite, China, Li et al. 2015; Tanco pegmatite, Canada, Van Lichtervelde et al. 2008; CĂnovec...et al. 2012; Brazil Lake pegmatite, Nova Scotia, Kontak 2006; Karibib pegmatite, * E-mail: rcwang@nju.edu...region, China, Zhu et al. 2006; Cap de Creus pegmatite field, Spain, Alfonso et al. 2003; Gatuba area |  | | Journal (article/letter/editorial) | | MARCHANEY HOPFAU HAGENDORF PLEYSTEIN WAIDHAUS PEGMATITE PROVINCE FLOSSENBĂśRG AUERBACH GRAFENWĂ–HR Weiden...Regensburg Strait extending NW-SE from the Tethys Sea during the Cretaceous with karst-related- and faultbound...near Muglhof and is also known from Hagendorf pegmatite (Fig. 7c) (MĂĽcke 1981). This Fe phosphate near...faces has also been observed in the Pleystein pegmatite. There is obviously no sharp boundary between...mineralization in the Hagendorf-Pleystein pegmatite province (Table 5). Siderite in Auerbach is held to |  | | Journal (issue) | | R ussia have yielded world-class specimens o f fluorite, pyrrhotite, ilvaite, datolite, danburite and...showgoers stunned. Huge, colorless, water-clear fluorite crystals, giant pyrrhotite crystal groups, large...Dal’negorsk is located a little over 35 km inland from the sea of Japan and 300 km northeast of Vladivostok, in...in 1897. In 1910 a railway was completed to the Sea of Japan, and Dal’negorsk ore was shipped to the...from Dal’negorsk, has produced some very good fluorite: green and purple octahe drons, cubes and complex |  | | Book | | Sciences Harald G. Dill The HagendorfPleystein Province: the Center of Pegmatites in an Ensialic Orogen...com/series/7377 Harald G. Dill The Hagendorf-Pleystein Province: the Center of Pegmatites in an Ensialic Orogen...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 |  | | Journal (article/letter/editorial) | | promising forgotten locations is an area of old pegmatite quarries in South Glastonbury, Connecticut. This...ROCKS 81MINERALS dletown-Portland, Connecticut, pegmatite district. They are found in South Glastonbury...(aquamarine); and the Hollister quarry, known for lithium pegmatite minerals. Minerals found in the district include...excellent-quality fluorite crystals up to 7 cm on edge (Jensen 1942). The fluorite crystals are usually... dolomite-lined cavities containing tetrahedral red and orange sphalerite crystals up to 4 cm, associated |  | Frost, Ray L., Xi, Yunfei, Scholz, Ricardo, Belotti, Fernanda M., Lagoeiro, Leonardo E. (2012) Chemistry, Raman and infrared spectroscopic characterization of the phosphate mineral reddingite: (MnFe)3(PO4)2(H2O,OH)3, a mineral found in lithium-bearing pegmatite. Physics and Chemistry of Minerals, 39 (10) 803-810 doi:10.1007/s00269-012-0535-7 | Journal (article/letter/editorial) | | (MnFe)3(PO4)2(H2O,OH)3, a mineral found in lithium-bearing pegmatite Ray L. Frost • Yunfei Xi • Ricardo Scholz • Fernanda...on a homogeneous sample from a lithium-bearing pegmatite named Cigana mine, near Conselheiro Pena, Minas...structure Reddingite–phosphoferrite Phosphate Pegmatite Introduction Reddingite is an uncommon manganese...pure, monomineral reddingite from the Cigana pegmatite, located in the municipality of Conselheiro Pena...Claim), a lithium-bearing pegmatite located in the Conselheiro Pena Pegmatite district (CPD), one of the |
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