 | | Journal (article/letter/editorial) | | montebrasite and amblygonite from Nagatare, Fukuoka Prefecture, Japan Yohei SHIROSE and Seiichiro UEHARA Department...Fukuoka 812â8581, Japan Montebrasite and amblygonite in an LiâCsâTa enriched (LCT) pegmatite from Nagatare...Nagatare, Fukuoka Prefecture, Japan, contain various alteration minerals: ďŹuorapatite, crandallite, goyazite...morinite, and lacroixite are newly discovered in Japan. The secondary phosphates and ďŹneâgrained mica form...secondary phosphates during the late stages of pegmatite formation has been recorded at several locations |  | | Journal (article/letter/editorial) | | Sciences, Kyushu University, Fukuoka 819-0395, Japan 1 Abstract Amblygoniteâmontebrasite series and...lacroixite from Nagatare LiâCsâTa (LCT) pegmatite, Fukuoka Prefecture, Japan, were investigated by powder Xâray...petalite-bearing pegmatite included low to high lacroixite contents and that from lower-temperature pegmatite with...generated new possibilities as the indicator of pegmatite-forming process. Keywords: Amblygoniteâmontebrasite...lacroixite, exsolution, Nagatare pegmatite, TEM Introduction late stages of pegmatite formation was reported |  | | Journal (article/letter/editorial) | | LETTER Li tourmaline from Nagatare, Fukuoka Prefecture, Japan Yohei Shirose and Seiichiro Uehara Department...University, Fukuoka 812-8581, Japan Tourmaline in a complex type granitic pegmatite of an Li-Cs-Ta enriched...enriched (LCT) family from Nagatare pegmatite, Fukuoka Prefecture, Japan, were classified into five types: type-A...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 |  | NovĂĄk, Milan, Sejkora, JiĹĂ, Ĺ koda, Radek, Budina, VĂĄclav (2008) Bismutotantalite-stibiotantalite-stibiocolumbite assemblage from elbaite pegmatites at Molo near Momeik, northern Shan State, Myanmar. Neues Jahrbuch fĂźr Mineralogie - Abhandlungen, 185 (1) 17-26 doi:10.1127/0077-7757/2008/0108 | Journal (article/letter/editorial) | | simple zoning with common pockets lined with K-feldspar, âmushroom-likeâ pink to red elbaite, beryl (aquamarine... electron microprobe, substitutions, elbaite pegmatite, Molo, Myanmar Introduction Bismuth-dominant...parental pegmatites are not sufficient to define the pegmatite subtype (e.g., v. Knorring & Mrose 1962, v. Knorring...zoning with common pockets lined with crystals of K-feldspar, âmushroom-likeâ pink to red elbaite and Li-bearing...Li-carrier besides rare petalite, dominance of K-feldspar relative to albite particularly in pockets, almost |  | | Journal (article/letter/editorial) | | THE ELBAITE SUBTYPE OF RARE-ELEMENT GRANITIC PEGMATITE T. SCOTT ERCIT§ Canadian Museum of Nature, P.O...the elbaite subtype of rare-element granitic pegmatite has been encountered within the OâGrady batholith...granite and felsitic satellite dykes. On the whole, pegmatite bodies show a mildly NYF-type geochemical and...(elbaite-bearing). The melts parental to the pegmatite bodies were more voluminous, more alkaline, less...than is the norm for melts parental to LCT-type pegmatite. Differentiation of these melts sequentially produced |  | Barros, Renata, Kaeter, David, Menuge, Julian F., Fegan, Thomas, Harrop, John (2022) Rare Element Enrichment in Lithium Pegmatite Exomorphic Halos and Implications for Exploration: Evidence from the Leinster Albite-Spodumene Pegmatite Belt, Southeast Ireland. Minerals, 12 (8) 981 doi:10.3390/min12080981 | Journal (article/letter/editorial) | | minerals Article Rare Element Enrichment in Lithium Pegmatite Exomorphic Halos and Implications for Exploration:...Exploration: Evidence from the Leinster Albite-Spodumene Pegmatite Belt, Southeast Ireland Renata Barros 1,2, *,...T.; Harrop, J. Rare Element Enrichment in Lithium Pegmatite Exomorphic Halos and Implications for Exploration:...Exploration: Evidence from the Leinster Albite-Spodumene Pegmatite Belt, Southeast Ireland. Minerals 2022, 12, 981...Belfield, D04 V1W8 Dublin, Ireland Blackstairs Lithium Limited, The Black Church, St. Maryâs Place, D07 |  | | Report (issue) | | pinacoid {001} is conspicuous. Topaz crystals from pegmatite pockets are commonly etched, and crystals from...Under their hypothesis, primary A newly opened pegmatite about 2 km from Sibiri on the banks of the Basha...porphyry deposits intermediate in water content, and pegmatite deposits deeper and wetter. However, a study of...suggesting that topazion was named for a like-named city in India from which it was first obtained. Some...aluminum in excess of that which crystallizes as feldspar (peraluminous compositions); and low levels of |  | | Journal (article/letter/editorial) | | emphasis on rare earth elements (REE), titanium and lithium Olli Sarapää1*, Niilo Kärkkäinen2, Timo Ahtola2...Lamujärvi, and Iivaara), rapakivi granite and pegmatite (Kovela), and kaolin-bearing weathering crusts...vanadium mine. For several years, Rare Element (RE)-pegmatite of the Kaustinen and SomeroâTammela areas has...Geological Survey of Finland (GTK). At Kaustinen, Li-pegmatite occurs as subparallel dyke swarms in an area of...Li pegmatite contains more than 10% spodumene as megacrysts (1â10 cm), albite, quartz, K-feldspar, muscovite |  | Wise, Michael A., Harmon, Russell S., Curry, Adam, Jennings, Morgan, Grimac, Zach, Khashchevskaya, Daria (2022) Handheld LIBS for Li Exploration: An Example from the Carolina Tin-Spodumene Belt, USA. Minerals, 12 (1) 77 doi:10.3390/min12010077 | Journal (article/letter/editorial) | | mjennings@sciaps.com Piedmont Lithium, Inc., 5706 Dallas Cherryville Highway, Bessemer City, NC 28016, USA; zgr...Li-enriched pegmatites containing spodumene, K-feldspar, albite, quartz, muscovite, and beryl. We illustrate...in the field at a historically important CTSB pegmatite locality in Gaston County, N.C. in four contexts:...measure K/Rb ratios and Li contents of muscovite and rapidly determine the degree of pegmatite fractionation...compositional information for pegmatites during a Li pegmatite exploration program. Academic Editor: Paul Alexandre |  | | Journal (article/letter/editorial) | | The two main hypotheses to explain rare-element pegmatite formation are (1) residual magmas from the crystallization...southeast Ireland, spodumene and spodumenefree pegmatite dikes occur along the eastern margin of the S-type...hypothesis, we used whole-rock geochemistry of pegmatite and granodiorite samples from drill cores and...clear fractionation trends from granodiorite to pegmatite. The in situ crystallization model using the average...indicates that the Leinster Granite granodiorite and pegmatite magmas could have formed in separate events and |  | | Journal (article/letter/editorial) | | enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral chemistry...enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral chemistry...element enrichment in crystallising albitespodumene pegmatite and wallrocks: constraints from mineral chemistry...worldwide, al challenge the general rules of pegmatite petrogenesis as these are nearly homogeneous bodies...bodies rn with little or no intrusion-scale pegmatite zonation. Bulk intrusion concentrations of Li |  | Wang, R. C., Hu, H., Zhang, A. C., Huang, X. L., Ni, P. (2004) POLLUCITE AND THE CESIUM-DOMINANT ANALOGUE OF POLYLITHIONITE AS EXPRESSIONS OF EXTREME Cs ENRICHMENT IN THE YICHUN TOPAZ LEPIDOLITE GRANITE, SOUTHERN CHINA. The Canadian Mineralogist, 42 (3) 883-896 doi:10.2113/gscanmin.42.3.883 | Journal (article/letter/editorial) | | the bottom upward: K-feldspar-rich facies, albite-rich facies, and albite- and K-feldsparrich facies...minerals occur as small inclusions within quartz or K-feldspar phenocrysts, indicative of a magmatic origin...interstitially among tabular crystals of albite around K-feldspar phenocrysts, suggesting that this type of pollucite...mineral of cesium, commonly found in evolved pegmatite rocks. Furthermore, nanpingite, the Cs analogue...described in the Nanping rare-element granitic pegmatite in southern China (Yang et al. 1988, Ni & Hughes |  | | Journal (article/letter/editorial) | | to very coarse-grained spodumene, plagioclase, K-feldspar, quartz, muscovite, and accessory amounts of...fractures in spodumene and feldspar. Plagioclase (Ab95â96) in the pegmatite is only slightly less sodic...albiteâquartz assemblage. Rare, nonperthitic K-feldspar is slightly sodic (Or95â99). Spodumene typically...triphylite (altered to fairfieldite) occur within the pegmatite fabric and appear to be primary phosphate minerals...associated with fracture fillings in sheared pegmatite. Pre-tectonic plagioclase â quartz â muscovite |  | | Journal (article/letter/editorial) | | of time, a need emerged to revise some of the pegmatite classes and families (e.g., ÄernyĚ & Kjellman...the synkinematic to post-kinematic (granite +) pegmatite populations themselves (Table 1, 2, Fig.1). THE...maximal estimates for the environment during pegmatite emplacement, as they characterize peak metamorphism...usually substantially predates intrusions of the pegmatite-forming melt. This PâT gap is locally the largest...subclasses, further 2007 subdivision leads to pegmatite types and subtypes, marked by significant differences |  | | Report (issue) | | University. All rights re served. Photo by William K. Sacco 4 By 1717 gem tourmaline was being referred...sub-species of tourmaline. At that time, boron and lithium were not known to be constituents of tourmaline...but in 1818 Swedish chemist and discoverer of lithium Jons Arfvedson made chemical analyses that extended...extended tourmaline's formula to include boron and lithium. Still a rarity on the market in 1805, the brightly...University. All rights reserved. Photography by William K. Sacco 5 For about fifty years, tourma line was |  | | Journal (article/letter/editorial) | | GEOLOGICALJOURNAL, VOL. 26,295-305 (1991) Genesis of lithium pegmatites from the Leinster Granite Margin, southeast...Ireland Extensive and economically-important lithium pegmatites have been described from the eastern...batholith. All the known bedrock occurrences of lithium pegmatite are contained within this marginal deformation...previous studies have suggested derivation of the lithium pegmatites by fractionation from the Leinster Granite...granitoids in an attempt to resolve the problem of pegmatite genesis. The results suggest a strong geochemical |  | | Journal (article/letter/editorial) | | 1989 Evolution of fluid phases associated with lithium pegmatites from SE Ireland MARTIN P. WHITWORTH...release of lithium from the lattice of spodumene. K EYWOROS: fluid inclusions, pegmatite, lithium, Leinster...provide one of the main potential resources of lithium in western Europe. Since their discovery by Irish...quartz from two of the important spodumene-bearing pegmatite occurrences (Aclare and Monaughrim, Fig. 1), their...+ + + + /+ +j' / j ~. / ~ ~) Lithium + + pegmatite + + + 9 + + + + + + + + + + |  | Wang, Zhen, Li, Jiankang, Chen, Zhenyu, Yan, Qinggao, Xiong, Xin, Li, Peng, Deng, Jingyi (2021) Evolution and Li Mineralization of the No. 134 Pegmatite in the Jiajika Rare-Metal Deposit, Western Sichuan, China: Constrains from Critical Minerals. Minerals, 12 (1) 45 doi:10.3390/min12010045 | Journal (article/letter/editorial) | | Evolution and Li Mineralization of the No. 134 Pegmatite in the Jiajika Rare-Metal Deposit, Western Sichuan...Evolution and Li Mineralization of the No. 134 Pegmatite in the Jiajika Rare-Metal Deposit, Western Sichuan...largest lithium deposit in Asia, and the No. 134 pegmatite dike is the largest lithium pegmatite under...textures and minerals in the Jiajika No. 134 pegmatite, two zones (the barren Zone I and the spodumene...The detailed mineralogical characteristics of lithium minerals and other indicator minerals from each |  | | Journal (article/letter/editorial) | | of pollucite in pegmatites of the Moldanubicum D. K. Teertstra, P. (~ern), and M. Novfik* Department of...compositions at these localities, with CRK = 100(Cs + Rb + K)/E cations variable from 72 to 85, and Si/A1 from...prim/irer Zusammensetzung mit CRK = 100 (Cs + Rb + K)/NKationen yon 85-72, und Si/AI 2.43 bis 2.60. Entmischung...mineral known to date within the M oldanubian pegmatite subprovince of the Hercynian orogen of central...100(Cs + Rb + K)/Z cations (Cern¢, 1974). This index is based on assignment of Cs, Rb and K to the larger |  | | Journal (article/letter/editorial) | | Amsterdam - - P r i n t e d in The Netherlands 195 LITHIUM PEGMATITES IN THE LEINSTER GRANITE (SOUTHEAST IRELAND)...accepted August 26, 1981) ABSTRACT Luecke, W., 1981. Lithium pegrnatites in the Leinster Granite (southeast...lithian muscovite and feldspar are given. The pegmatites consist of quartz, alkali feldspar and small amounts... The Leinster Granite and the location of the lithium pegmatites in the SE region (from Steiger and yon...thickness and of ordinary quartz--feldspar pegmatites. Composite aplite--pegmatite dykes are c o m m o n in the |  | | Journal (article/letter/editorial) | | 3749/canmin.AB00026 THE ARCHEAN MT. CATTLIN SPODUMENE PEGMATITE GROUP AND 3D GEOCHEMICAL MAPPING OF LARGE ââUNZONEDââ...spodumene, Yilgarn Craton, LCT pegmatite, 3D geochemical modelling, Archean, lithium. INTRODUCTION MORPHOLOGY...MORPHOLOGY The Mt. Cattlin spodumene pegmatite group is located on the southernmost edge of the Archean Yilgarn...pegmatites are currently being mined as a source of lithium, from spodumene ore. They contain a global resource...INTERNAL STRUCTURE AND MINERALOGY The Mt. Cattlin pegmatite group shows petrological characteristics and internal |  | Brisbin, W. C., Eby, R. K., Corkery, M. T., Cerny, P., Chackowsky, L. E., Ferreira, K., Halden, N. M., Meintzer, R. E., Trueman, D. L. (2012) EXTREME FRACTIONATION AND DEFORMATION OF THE LEUCOGRANITE - PEGMATITE SUITE AT RED CROSS LAKE, MANITOBA, CANADA. III. DESCRIPTION OF SHEARING AND MYLONITIZATION TEXTURES IN THE LEPIDOLITE PEGMATITES. The Canadian Mineralogist, 50 (6) 1823-1838 doi:10.3749/canmin.50.6.1823 | Journal (article/letter/editorial) | | FRACTIONATION AND DEFORMATION OF THE LEUCOGRANITE â PEGMATITE SUITE AT RED CROSS LAKE, MANITOBA, CANADA. III...LEPIDOLITE PEGMATITES William C. BRISBIN and Ray K. EBY1 Department of Geological Sciences, University...leucogranites and pegmatites populate the Red Cross Lake pegmatite field, located in the Red Cross Lake greenstone...mylonite-gneisses. Predominant movement within the sheared pegmatite has been dextral strike-slip with minor normal...quartz + K-feldspar, and lepidolite + quartz + albite, and they represent deformed primary pegmatite assemblages |  | Rasilainen, Kalevi, Eilu, Pasi, Ahtola, Timo, Halkoaho, Tapio, Kärkkäinen, Niilo, Kuusela, Janne, Lintinen, Panu, TĂśrmänen, Tuomo (2018) Quantitative assessment of undiscovered resources in lithiumâcaesiumâtantalum pegmatite-hosted deposits in Finland. Bulletin de la Commission GĂŠologique de Finlande Vol. 406. Geological Survey of Finland | Journal (volume) | | Quantitative assessment of undiscovered resources in lithiumâcaesiumâtantalum pegmatitehosted deposits in Finland...assessment of undiscovered resources in lithiumâcaesiumâtantalum pegmatite-hosted deposits in Finland by Rasilainen...Layout: Elvi Turtiainen Oy Espoo 2018 Rasilainen, K., Eilu, P., Ahtola, T., Halkoaho, T., Kärkkäinen,...assessment of undiscovered resources in lithiumâcaesiumâtantalum pegmatite-hosted deposits in Finland. Geological...appendices. Lithium resources in undiscovered lithiumâcaesiumâtantalum (LCT) pegmatite deposits were |  | ÄernĂ˝, Petr, Masau, Morgan, Goad, Bruce E., Ferreira, Karen (2005) The Greer Lake leucogranite, Manitoba, and the origin of lepidolite-subtype granitic pegmatites. Lithos, 80 (1) 305-321 doi:10.1016/j.lithos.2003.11.003 | Journal (article/letter/editorial) | | multiphase, peraluminous, B-, P-, and S-poor leucogranite (K/Rb 132 to 24) was probably generated by fault-friction-assisted...fractionation gradients characterize the granite-to-pegmatite transition, most conspicuously so in the case...lepidolite-subtype pod AC #3 (with K/Rb z 16 and Cs 330 ppmwt in accessory K-feldspar, z2.5 and V11,200 ppmwt,...rights reserved. Keywords: Leucogranite; Granitic pegmatite; Lepidolite; Petrology; Geochemistry; Petrogenesis...views, based on, i.e., bimodal distribution of lithium abundances in granitic pegmatites. Recently, Gordiyenko |  | London, D., Wolf, M. B., Morgan, G. B., Garrido, M. G. (1999) Experimental Silicate-Phosphate Equilibria in Peraluminous Granitic Magmas, with a Case Study of the Alburquerque Batholith at Tres Arroyos, Badajoz, Spain. Journal of Petrology, 40 (1) 215-240 doi:10.1093/petroj/40.1.215 | Journal (article/letter/editorial) | | results to a sharply zoned, PâBâF-rich graniteâpegmatite suite at Tres Arroyos, along the SE margin of...apliteâpegmatite facies at Tres Arroyos. KEY WORDS: phosphorus; phosphates; alkali feldspar; peraluminous...feldspars, and then using the mean P contents of the K-feldspar and the ASI of the (fresh) whole rock, estimated...4¡53 (0¡11) 4¡14 (0¡20) 4¡00 (0¡12) 3¡50 4¡10 K 2O 3¡76 (0¡01) 3¡99 (0¡12) 4¡50 (0¡14) 3¡92 (0¡09)...H2O diff ASI 0¡97 1¡25 1¡00 1¡24 1¡37 1¡42 Kâ 32¡97 36¡69 41¡70 39¡20 40¡83 36¡16 Added |
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