 | | Journal (article/letter/editorial) | | crystallization of the Animikie Red Ace Pegmatite, Florence county, northeastern Wisconsin: inclusion microthermometry...evaluated the crystallization regime of a zoned pegmatite dike and the degree of magma undercooling at the...assemblages. The liquidus temperature of the pegmatite magma was *720°C, based on re-melting of crystallized-melt...exsolved from hotter, still crystallizing inner pegmatite units. The huge temperature contrast between the...inclusion assemblages Microthermometry LCT pegmatite Numerical simulation Undercooling Communicated |  | | Journal (article/letter/editorial) | | DISTRIBUTION IN COLUMBITE-TANTALITE FROM THE MOREFIELD PEGMATITE, AMELIA, VIRGINIA. J. M Ayer.s and L. E. Kearns...Columbite-tantalite crystals from the Morefield pegmatite in Amelia County, Virginia, were analyzed for Ta, Nb,...from fifty-seven sites along the 65.9 meters of pegmatite exposed at the 6O-foot mine level. The analyses...ratios show no trends along the length of the pegmatite, but the samples tend to be more Ta-rich near...NIOBIUM-TANTALUM MINERALS FROM THE ANIMIKIE RED ACE PEGMATITE, FLORENCE COUNTY, WISCONSIN. A. U. Foister, W. B. Simmons |  | | Journal (article/letter/editorial) | | 165 THE LATE-STAGE MINIFLOOD OF Ca IN GRANITIC PEGMATITES: AN OPEN-SYSTEM ACID-REFLUX MODEL INVOLVING PLAGIOCLASE...Abstract As Richard H. Jahns used to say, granitic pegmatites are prone to stew in their own juice. The early...country rock, mostly from the apical parts of zoned pegmatites. There, it interacts with plagioclase in any...envision a convecting fluid phase cycling around the pegmatite body, and a reaction path that brings the acidified...acidified fluid back into the heart of the pegmatite. There, it is aggressive toward the microcline perthite |  | 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...deposit in Asia, and the No. 134 pegmatite dike is the largest lithium pegmatite under mining conditions in...textures and minerals in the Jiajika No. 134 pegmatite, two zones (the barren Zone I and the spodumene...evolution and the cooling path of the Jiajika No. 134 pegmatite. From the outer zone inwards, grain size gradually |  | | Journal (article/letter/editorial) | | as an essential element are found in granitic pegmatites and alkalic rocks or in hydrothermal deposits...geologic record: the oldest known is beryl in pegmatites associated with the Sinceni pluton, Swaziland...with highly fractionated rare-element granitic pegmatites and with skarns at Långban and similar deposits...Ma, which is largely attributable to granitic pegmatites (Appalachian Mountains, U.S.A., and Urals, Russia)...Mineral age, beryllium, mineral evolution, granitic pegmatites, peralkaline complexes, supercontinent cycle |  | Bradley, Dwight, Shea, Erin, Buchwaldt, Robert, Bowring, Sam, Benowitz, Jeff, O'Sullivan, Paul, McCauley, Andrew (2016) Geochronology and Tectonic Context of Lithium-Cesium-Tantalum Pegmatites In the Appalachians. The Canadian Mineralogist, 54 (4) 945-969 doi:10.3749/canmin.1600035 | Journal (article/letter/editorial) | | AND TECTONIC CONTEXT OF LITHIUM-CESIUM-TANTALUM PEGMATITES IN THE APPALACHIANS DWIGHT BRADLEY§,* U.S. Geological...99775 U.S.A. PAUL O’SULLIVAN GeoSep Services, 1521 Pine Cone Road, Moscow, Idaho 83843, U.S.A. ANDREW MCCAULEY...lum (LCT) and niobium-yttrium-fluorine (NYF) pegmatites occur at intervals along the Appalachian orogen...(LA-ICP-MS), and apatite fission track ages for 14 pegmatites. Based mostly on these new results, we recognize...recognize a minimum of four ages of LCT pegmatites in the Appalachians. From oldest to youngest, these are: |  | | Journal (article/letter/editorial) | | Jeffrey Scovil photo. July/August: Calcite, Gallatin County, Mon tana. American Museum of Natural Histo ry...September/October: Chalcocite, Flambeau mine, Ladysmith, Rusk County, Wiscon sin. F. John Barlow specimen, Malcolm...November/December: Chalcocite, Bristol, Hartford County, Connecticut. Jim Minette specimen, Jeffrey Scovil...Springs, 154-70 Arsenopyrite, Connecticut, 128; Wisconsin, 338 Art, see Robinson, S. Ayers, J . M., see...Contributed Papers in Specimen Mineralogy Azurite, Wisconsin, 338 Babcock, L . E . , see Media Reviews Babingtonite |  | | Journal (article/letter/editorial) | | columbite-group minerals and cassiterite from the Black Mountain pegmatite, Maine MICHAEL A. WISE* and...Smithsonian Institution, Washington, DC, 20560, USA *Corresponding author, e-mail: wisem@si.edu Abstract:...Black Mountain pegmatite has revealed the presence of discrete crystals, as well as cassiterite-hosted micrograins...exceeds 1.0 oxide wt%. The chemistry of the host cassiterite is relatively homogeneous and pure; the total...formation of discrete grains of columbite and cassiterite. On the whole, both discrete crystals and micrograins |  | Martins, T., Lima, A., Simmons, W. B., Falster, A. U., Noronha, F. (2011) GEOCHEMICAL FRACTIONATION OF Nb-Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO-ALVAO PEGMATITE FIELD, NORTHERN PORTUGAL. The Canadian Mineralogist, 49 (3) 777-791 doi:10.3749/canmin.49.3.777 | Journal (article/letter/editorial) | | OF Nb–Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO–ALVÃO PEGMATITE FIELD, NORTHERN PORTUGAL Tânia...University of New Orleans, New Orleans, Louisiana 70148, USA Fernando NORONHA Geology Centre, and Department...Portugal Abstract The Barroso–Alvão granitic pegmatite field, located in northern Portugal, is known...Li-bearing pegmatites, especially spodumene- and petalite-bearing bodies. Recent work on this pegmatite field...field characterized other types of pegmatites, and complex mineralization and mineral associations. Minerals |  | | Report (issue) | | International, LLC P.O. Box 263, East Hampton, CT 06424, USA Phone 1.860.267.1512; fax 1.860.267.7225 www.lapisint...CHRISTIAN WEISE VERLAG, GERMANY AND LAPIS INTERNATIONAL, USA Tourmaline ♦ History ♦ Mineralogy • Tourmaline...is adorned at its center with a large, polished, red tourmaline. The crown is housed at the Hradschin...Tourmaline . . ......... 68 Maximilian Glas • Pegmatites - An Overview .............70 William B. Simmons...pearls. The large (39.5 x 36.5 x 14 mm), bright red stone in the center of the front of the crown was |  | | Journal (article/letter/editorial) | | Scandium-bearing minerals from the Heftetjern-pegmatite, Tørdal, south Norway Roy Kristiansen At the...type locality at Heftet jern in Tørdal, in the county of Telemark, Norway. New data of Scandium-minerals...the mineral is reported mostly from granitic pegmatites, but also from carbonatites, greenstone, volcaniclastic...grey Sc-AI-silicate from the Animikie Red Ace pegmatite in Wisconsin,USA, by Falster et al. (1996); 3)...complete description of the mineralogy of the pegmatite is not provided except for an updated list of |  | | Journal (issue) | | Norway 8th International Symposium on Granitic Pegmatites Pre-conference excursion Tysfjord-Hamarøy PEG2017...PEG2017 8th International Symposium on Granitic Pegmatites Pre-conference excursion - Tysfjord-Hamarøy...in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...REE) concentration in rare-element granites and pegmatites from Russia………………………………………………………………..4 BARROS...MENUGE, J.F., ZACK, T. Rb-Sr studies of spodumene pegmatites and associated rocks in Leinster, Ireland…………………8 |  | Černý, P., Teertstra, D. K., Chapman, R., Selway, J. B., Hawthorne, F. C., Ferreira, K., Chackowsky, L. E., Wang, X.-J., Meintzer, R. E. (2012) Extreme fractionation and deformation of the leucogranite-pegmatite suite at Red Cross Lake, Manitoba, Canada. IV. Mineralogy. The Canadian Mineralogist, 50 (6) 1839-1875 doi:10.3749/canmin.50.6.1839 | Journal (article/letter/editorial) | | FRACTIONATION AND DEFORMATION OF THE LEUCOGRANITE – PEGMATITE SUITE AT RED CROSS LAKE, MANITOBA, CANADA. IV. MINERALOGY...pegmatitic leucogranites and pegmatites populate the Red Cross Lake pegmatite field, located in a greenstone...Canadian Shield. Most of the leucogranites and pegmatites are geochemically rather primitive, but one of...lithiumenriched, and the most evolved lepidolite-rich pegmatites represent the most fractionated products of granitic...differentiation known to date. The lepidolite pegmatites consist mainly of albite, quartz and muscovite |  | | Journal (article/letter/editorial) | | evolution of fluids in rare-element granitic pegmatites associated with the Lacorne pluton, Québec, Canada...evolution of fluids in rare-element granitic pegmatites associated with the Lacorne pluton, Québec, Canada...EVOLUTION OF FLUIDS IN RARE-ELEMENT GRANITIC PEGMATITES ASSOCIATED WITH THE LACORNE PLUTON, QUÉBEC, CANADA...Co-magmatic rare-element (Be, Li, Nb, Ta) granitic pegmatites associated with the Lacorne monzogranite pluton...immediately after the formation of aplite in the beryl pegmatite, and pene-contemporaneously US with formation |  | | Journal (article/letter/editorial) | | petrologic assessment of internal zonation in granitic pegmatites David London ConocoPhillips School of Geology...Geophysics, University of Oklahoma, Norman, OK 73019, USA a r t i c l e i n f o Article history: Received...Available online 1 November 2013 Keywords: Granitic pegmatite Internal zonation Fractional crystallization Constitutional...zonation within granitic pegmatites that are in use today. Zonation in pegmatites is manifested both in...is a conspicuous and distinctive attribute of pegmatites, there has been no thorough effort to explain |  | | Book | | the origin of secondary phosphates in granitic pegmatites during the oxidation of primary phosphates);...magmatic or hydrothermal origins of elbaite in the pegmatite cavities; the metamorphic or hydrothermal origins...secondary origins of some phosphates in granitic pegmatites etc. With the localities for individual minerals...light pink to copper-red, it darkens and covers green to black in air; S - red; L - metallic; D opaque;...copper are in the Keweenaw Peninsular, Lake Superior, USA, the largest being I 5 x 7 x 3m (approx. 50 x 23 |  | | Book | | the origin of secondary phosphates in granitic pegmatites during the oxidation of primary phosphates);...magmatic or hydrothermal origins of elbaite in the pegmatite cavities; the mctamorphic or hydrothermal origins...secondary origins of some phosphates in granitic pegmatites etc. The origin of individual minerals is described...rocks, including granitic and alkaline syenite pegmatites and With the localities for individual minerals...light pink to copper-red, it darkens and covers green to black in air; S - red; L - metallic; D opaque; |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Montrevel-en-Bresse, Ain, France. F. John Barlow: Appleton, Wisconsin. Peter Bayliss: Mineralogy, Australian Museum...accordance with whether the indices are greater for red or violet light, but the notation — may also refer...Granite pegmatites, including their oxidized and/or hydrothermally altered phases Syenitic pegmatites Massive...SC SD TN TX UT VT VA Washington West Virginia Wisconsin Wyoming WA WV WI WY Provinces, Canada AB Alberta...Mineralogist ISM V. C. Farmer, ed. The Intfra-red Specira of Minerals, Monograph 4, Mineralogical Society |
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