 | | 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) | | rapid emplacement and crystallization of granite pegmatites: resolving the paradox of large crystals in highly...2009 Ó Springer-Verlag 2009 Abstract Granite pegmatite sheets in the continental crust are characterized...large crystals. There has been a shift in viewing pegmatites as products of very slow cooling of granite melts...about the role of H2O in the petrogenesis of pegmatites. Based on data on nucleation of minerals and...essential component in the petrogenesis of granite pegmatites. H2O is key to reducing the viscosity of granite |  | | Journal (article/letter/editorial) | | Norman, Oklahoma 73019 dlondon@ou.edu Reading P 2 Pegmatites: ART Downloaded by [University of California...principal environment will be that of granitic pegmatites, from which many of the finest mineral specimens...Ledge dike, Little Three mine, Ramona, San Diego County, California. Varieties of elbaite: (c) rubellite...Tourmaline Queen mine (1972), Pala district, San Diego County, California, Jesse Fisher and Joan Kureczka specimen...almost exclusively in association with granitic pegmatites (see London 2008, 2015a), tourmaline is a common |  | | Journal (article/letter/editorial) | | Sciences University of Wisconsin-River Falls 410 South Third Street River Falls, Wisconsin 54022 his is Wisconsin’s... breweries, bratwurst, and Packers football, Wisconsin also has a diverse geology and a history rich...forgotten, abandoned, and overgrown. In this respect, Wisconsin represents a frontier state for the mineral collector...quarry in Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster...summarizes and highlights what has been found in Wisconsin in the past 150 years and points the way to new |  | | Journal (article/letter/editorial) | | magmatic to hydrothermal conditions in pegmatites from San Diego County, California Elizabeth M. Gammel1,*...in pegmatites and to ultimately understand why some pegmatites in the San Diego County pegmatite district...In this district, lithium-cesium-tantalum type pegmatites occur in the Mesozoic Peninsular Ranges Batholith...contain gem-quality, Li-bearing minerals. Two pegmatite suites were studied: the gem-bearing Himalaya...underscore highly undercooled crystallization of pegmatites. Pressure-corrected homogenization temperatures |  | Novák, Milan, Cempírek, Jan, Gadas, Petr, Škoda, Radek, Vašinová Galiová, Michaela, Pezzotta, Federico, Groat, Lee A. (2015) Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. The Canadian Mineralogist, 53 (2) 357-374 doi:10.3749/canmin.1400092 | Journal (article/letter/editorial) | | BREAKDOWN PRODUCTS OF SPODUMENE FROM THE MANJAKA PEGMATITE, SAHATANY VALLEY, MADAGASCAR MILAN NOVÁK§ Department...elbaite-subtype Manjaka granitic pegmatite, Sahatany Valley, Madagascar. The pegmatite mineral assemblage is relatively...> Ap + several accessory B-rich phases). This pegmatite forms an E–W-trending elongated body emplaced...emplaced in an Mg-rich calc-silicate rock; the pegmatite exocontact locally contains thin reaction zones (Tur+Phl±Brl)...minor extent of exocontact reactions along the pegmatite, and secondary rhodochrosite, are responsible |  | | Journal (article/letter/editorial) | | magmatic-hydrothermal evolution of the granite-pegmatite system. K EY WORDS : tourmaline, isotopes, Paraiba...a common constituent of granites and granitic pegmatites (e.g. Aurisicchio et al., 1999; Dyar et al.,...SHABAGA ET AL. crystallization models of granitic pegmatites (London, 1986; Thomas et al., 1988; Morgan and...relations and the magmatichydrothermal evolution of pegmatites. In this study, we use Secondary Ion Mass Spectrometry...fluororiebeckite (F); forsterite (Mg); LLiF: fayalite (Fe); spessartine (Mn); titanite (Ti); CuFeS2 (Cu). The data were |  | | Journal (article/letter/editorial) | | AN LCT-SUITE PEGMATITE WITH LATE-STAGE SODIUM ENRICHMENT, BRAZIL LAKE, YARMOUTH COUNTY, NOVA SCOTIA....Brazil Lake granitic pegmatite, a rare occurrence of an LCT-type (Li–Cs–Ta) pegmatite in the Meguma Terrane...Group. Previous mineralogical studies showed the pegmatite formed in two distinct stages, an early spodumene...tourmaline) provide insight into the origin of the pegmatite-forming melt and its subsequent internal evolution...metasedimentary source and suggest, instead, that the pegmatite-forming melt originated via partial melting of |  | | 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) | | for lithium‑aluminosilicate supersaturation of pegmatite‑forming melts Victoria Maneta1 · Don R. Baker1...reveal evidence for lithium supersaturation of pegmatite-forming melts before the formation of Li-aluminosilicates...spodumene-rich Moblan pegmatite (Quebec) is consistent with extreme Li enrichment of the pegmatite-forming melt...such Li-rich ore resources. Keywords Granitic pegmatites · Lithium · Supersaturation · Moblan · Spodumene...Street, Montreal, QC H3A 0E8, Canada Introduction Pegmatites currently account for 38 % of the known global |  | 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 (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 |  | | 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 (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 |  | | 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 |  | Zhou, Qifeng, Qin, Kezhang, Tang, Dongmei, Tian, Ye, Cao, Mingjian, Wang, Chunlong (2015) Formation Age and Evolution Time Span of the Koktokay No. 3 Pegmatite, Altai, NW China: Evidence from U-Pb Zircon and40Ar-39Ar Muscovite Ages. Resource Geology, 65 (3) 210-231 doi:10.1111/rge.12067 | Journal (article/letter/editorial) | | and Evolution Time Span of the Koktokay No. 3 Pegmatite, Altai, NW China: Evidence from U–Pb Zircon and...Beijing, China 2 Abstract The Koktokay No. 3 pegmatite is the largest Li–Be–Nb–Ta–Cs pegmatitic rare-metal...mineralization peak, hydrothermal stage of the No. 3 pegmatite are in ranges of 193–198 Ma, 184–187 Ma and 172–175...Ma and 173.1 ± 3.9 Ma, respectively. The No. 3 pegmatite formed in the early Jurassic. The results of xenocrysts...xenocrysts suggest that there is another pegmatite forming event of around 210 Ma in the mining district |  | | 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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