 | | Journal (issue) | | Finger) and LKA Emeralds, Hiddenite, Alexander County, NC Go On Public Exhibit in New York City. Emeralds.................................... 2 Himalaya pegmatite,.................................................................................. 2 Unnamed pegmatite occurrence, Volcan Mountains ........................................... 3 Brown Derby no. 1 pegmatite ............................................................................... 3 Ridgefield pegmatite,............................................. |  | Sirbescu, M.-L. C., Leatherman, M. A., Student, J. J., Beehr, A. R. (2009) APATITE TEXTURES AND COMPOSITIONS AS RECORDS OF CRYSTALLIZATION PROCESSES IN THE ANIMIKIE RED ACE PEGMATITE DIKE, WISCONSIN, USA. The Canadian Mineralogist, 47 (4) 725-743 doi:10.3749/canmin.47.4.725 | Journal (article/letter/editorial) | | CRYSTALLIZATION PROCESSES IN THE ANIMIKIE RED ACE PEGMATITE DIKE, WISCONSIN, USA Mona-Liza C. SIRBESCU§, Mark...314 Brooks Hall, Mount Pleasant, Michigan 48859, USA Alison R. BEEHR Department of Earth and Planetary...63130-4862, USA Abstract Unidirectional and skeletal textures in the thin inward-crystallizing Animikie Red...Red Ace (ARA) pegmatite dike, in northeastern Wisconsin, suggest rapid, disequilibrium crystallization of...of the outer zones as the pegmatite-forming magma came in contact with much cooler country-rocks. The |  | | 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 |  | | Report (issue) | | 05 ]ÎŁ=0.98 . (2) Little Three mine, California, USA; corresponds to Be2.00 B1.00 O3 [(OH)0.70 F0.30 ]ÎŁ=1...mineral in granite pegmatites. Association: Beryl, danburite, apatite, spodumene, zircon, fluorite,...Bity; and large crystals from Anjanabanoana. In the USA, fine crystals from the Little Three mine, near Ramona...Co., California; large crystals from the Zapot pegmatite, 25 km northeast of Hawthorne, Mineral Co., Nevada;...Nevada; at the Animikie Red Ace pegmatite, near Pine River, Florence Co., Wisconsin. In Pakistan, around |  | | Report (issue) | | in alkali-rich granite pegmatites. Association: Londonite, elbaite, spodumene, beryl, beÌhierite, albite...In the USA, found in the Animikie Red Ace pegmatite, near Pine River, Florence Co., Wisconsin. Name:...Name: From the Greek for rose-colored, for the rose-red color the mineral imparts to the blowpipe flame. References:...of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. Can. Mineral., 39, 747â755. All rights |  | | Journal (article/letter/editorial) | | rapid emplacement and crystallization of granite pegmatites: resolving the paradox of large crystals in highly...2009 Ă 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) | | 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) | | Pagmatites: the State of the Artâ, Porto, May 2007 Pegmatite genesis: state of the art Wm. B. âSkipâ SIMMONS*...University of New Orleans, New Orleans, LA 70148, USA *Corresponding author, e-mail: wsimmons@uno.edu ...Abstract: No one universally accepted model of pegmatite genesis has yet emerged that satisfactorily explains...explains all the diverse features of granitic pegmatites. Genesis from residual melts derived from the...concepts have shed light on problems related to pegmatite genesis. Cooling rates calculated from thermal |  | 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...in the Jiajika No. 134 pegmatite, two zones (the barren Zone I and the spodumene Zone II) and three subzones...microcrystalline, medium-fine grained and coarsegrained spodumene zones) have been identified. The detailed mineralogical |  | | 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 LĂ„ngban 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 |  | | Journal (article/letter/editorial) | | Michigan, plus a small portion of northeastern Wisconsin. This includes the famous Marquette and Eastern...range, home of the well-known Montreal mine in Wisconsin. (My collecting experience has not extended to...of the story, as they say, is history. Marquette County alone would eventually have 247 iron mines (Mulligan...identified only as to district or range (e.g., âIron Riverâ or âMarquette Rangeâ); many were not labeled at...many years. Maquette County Marquette County is the easternmost Iron Country county and also the oldest |  | | 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 |  | 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 OâSULLIVAN 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) | | 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 |  | NovĂĄk, Milan, CempĂrek, Jan, Gadas, Petr, Ć koda, Radek, VaĆĄinovĂĄ GaliovĂĄ, 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) | | Al8B2Si2O19, BREAKDOWN PRODUCTS OF SPODUMENE FROM THE MANJAKA PEGMATITE, SAHATANY VALLEY, MADAGASCAR MILAN...breakdown products of spodumene from the elbaite-subtype Manjaka granitic pegmatite, Sahatany Valley, Madagascar...Madagascar. The pegmatite mineral assemblage is relatively simple (Ab + Qz > Kfs > Tur + Spd > Ap + several...several accessory B-rich phases). This pegmatite forms an EâW-trending elongated body emplaced in an Mg-rich...Mg-rich calc-silicate rock; the pegmatite exocontact locally contains thin reaction zones (Tur+Phl±Brl) |  | | Journal (article/letter/editorial) | | Sciences University of Wisconsin-River Falls 410 South Third Street River Falls, Wisconsin 54022 his is Wisconsinâs... 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) | | 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) | | 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 |  | | Journal (article/letter/editorial) | | minerals and cassiterite from the Black Mountain pegmatite, Maine MICHAEL A. WISE* and CATHLEEN D. BROWN...Smithsonian Institution, Washington, DC, 20560, USA *Corresponding author, e-mail: wisem@si.edu Abstract:...Ta-,Sn-oxide minerals from the Black Mountain pegmatite has revealed the presence of discrete crystals...fractionation as commonly observed in F-enriched granitic pegmatites. Micrograins of CGM typically show higher Ta/(Ta...Key-words: cassiterite, columbite-group minerals, pegmatite, Black Mountain, Maine. 1. Introduction and |  | | Journal (article/letter/editorial) | | crystallization process in the San Diego County pegmatites, California, USA Jennifer S. MALONEY1,4 , Peter I...Sciences, University of Missouri, Columbia, MO 65211, USA *Corresponding author, e-mail: nabelekp@missouri...MI 48859, USA 3 Department of Geology, University of Maryland, College Park, MD 20742, USA 4 Current... 363 N. Sam Houston Parkway, Houston, TX 77060, USA 5 Current address: Institut fĂŒr Geowissenschaften...lithium-cesium-tantalum-type pegmatite dikes of San Diego County, California, USA, tourmaline is the main |  | 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 NbâTa OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSOâALVĂO PEGMATITE FIELD, NORTHERN PORTUGAL TĂąnia...University of New Orleans, New Orleans, Louisiana 70148, USA Fernando NORONHA Geology Centre, and Department...Portugal Abstract The BarrosoâAlvĂŁo 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 |  | | Journal (article/letter/editorial) | | for lithiumâaluminosilicate supersaturation of pegmatiteâforming melts Victoria Maneta1 · Don R. Baker1...experimental data on the solubility of lithium (Li) at spodumene (LiAlSi2O6) and petalite (LiAlSi4O10) saturation...reveal evidence for lithium supersaturation of pegmatite-forming melts before the formation of Li-aluminosilicates...the experimental results with the spodumene-rich Moblan pegmatite (Quebec) is consistent with extreme...extreme Li enrichment of the pegmatite-forming melt prior to emplacement, which cannot be explained with equilibrium |  | | 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 (LiâCsâTa) pegmatite in the Meguma Terrane...mineralogical studies showed the pegmatite formed in two distinct stages, an early spodumene â K-feldspar â quartz...values for silicate phases (quartz, K-feldspar, spodumene, albite, muscovite, garnet, tourmaline) provide...provide insight into the origin of the pegmatite-forming melt and its subsequent internal evolution. A primary |  | | Journal (article/letter/editorial) | | evolution of fluids in rare-element granitic pegmatites associated with the Lacorne pluton, QuĂ©bec, Canada...evolution of fluids in rare-element granitic pegmatites associated with the Lacorne pluton, QuĂ©bec, Canada...EVOLUTION OF FLUIDS IN RARE-ELEMENT GRANITIC PEGMATITES ASSOCIATED WITH THE LACORNE PLUTON, QUĂBEC, CANADA...Co-magmatic rare-element (Be, Li, Nb, Ta) granitic pegmatites associated with the Lacorne monzogranite pluton...through a transitional beryl + spodumene-type to a most evolved IP spodumene-type in mafic country rocks |  | | 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 |
|
Animikie Red Ace pegmatite, Pine River pegmatites, Fern, Florence County, Wisconsin, USA