 | | Journal (article/letter/editorial) | | columbite-group minerals and cassiterite from the Black Mountain pegmatite, Maine MICHAEL A. WISE* and CATHLEEN D...Smithsonian Institution, Washington, DC, 20560, USA *Corresponding author, e-mail: wisem@si.edu Abstract:...of Nb-,Ta-,Sn-oxide minerals from the Black Mountain pegmatite has revealed the presence of discrete...cassiterite, columbite-group minerals, pegmatite, Black Mountain, Maine. 1. Introduction and partitioning...microscopic grains hosted by cassiterite. The Black Mountain pegmatite is one of a few pegmatites in western |  | | 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,............................................. |  | | Journal (article/letter/editorial) | | ZONATION AND CHEMICAL EVOLUTION OF THE BLACK MOUNTAIN GRANITIC PEGMATITE, MAINE CATHLEEN D. BROWN§ AND MICHAEL...The crystallization history of the Black Mountain granitic pegmatite, near Rumford, western Maine, is evaluated...compositions of rock-forming and accessory minerals. The pegmatite is strongly zoned; the zonation developed from...Cs and F occurred during the latest stage of pegmatite crystallization prior to core development. Late...Keywords: granitic pegmatite, internal zonation, Black Mountain, Maine, tourmaline, spodumene, lepidolite, |  | | Journal (article/letter/editorial) | | the Brunswick pegmatite field and the Central Maine Synclinorium of the Oxford pegmatite field, in Maine...characteristics (e.g., Topsham area of the Brunswick pegmatite field). Significant chemical-compositional and...Brunswick and Oxford pegmatite fields. Columbite-group minerals from the Brunswick pegmatite field mainly consist...The structural state of CGM from the Brunswick pegmatite field ranges from highly cation-disordered to...predominantly highly ordered CGM in the Oxford pegmatite field. Limited concurrent fractionation of Mn |  | | Journal (article/letter/editorial) | | December 2014 THE FENGJIASHAN WOLLASTONITE MINE, DAYE COUNTY, HUBEI PROVINCE, CHINA. B. Ottens, Klingenbrun-Banhof...visited the Fengjiashan Wollastonite mine in Daye County, and a huge number of well-developed minerals have...kilometers south of Bancroft, near L’Amable, is a pegmatite locality well known for dravite specimens. Fodi...WISCONSIN MINERALS FROM THE NINE MILE PLUTON, MARATHON COUNTY, WISCONSIN. T. W. Buchholz1, A. U. Falster2, and... New Orleans, LA 70148. The Maguire weathered granite quarry is located approximately 0.4 kilometer west |  | | Journal (article/letter/editorial) | | constituent, include the lithium aluminosilicates spodumene, petalite, and eucryptite (formulas of minerals...Lithiophilite Montebrasite Petalite Rossmanite Spodumene Triphylite Zinnwaldite Formula LiAlPO4F LiAlSi2O6∙H2O...are, nonetheless, very close to that of ordinary granite (London 2008). For simplicity, these will be referred...becomes shale. Subsequent metamorphism during mountain-building events (e.g., the formation of the Alps...the direction of crystallization from massive pegmatite into the miarolitic cavity. (d) A lepidolite “skull” |  | 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) | | Morefield, Virginia, at ca. 253 Ma; and Hurricane Mountain, New Hampshire, which cross-cutting relations...component. Thus a set of zircon ages from an LCT pegmatite must be treated as analogous to detrital zircon...Keywords: pegmatite, Geochronology, Appalachian orogen, tectonics, lithium-cesium-tantalum pegmatite, nio...niobium-yttrium-fluorine pegmatite. INTRODUCTION Lithium-cesium-tantalum (or LCT) pegmatites are a widespread...gemstones such as watermelon tourmaline, the spodumene variety kunzite, and the beryl varieties morganite |  | | Show/Event (guide) | | Collecting: A Review of the Powers Farm and Treasure Mountain Locales by Michael Walter 3 6 We warmly welcome...cathodoluminescence to the evolution of the Black Mountain pegmatite by]. Maloney and M. A Wise 2:15 S o l...2:45 R a r e - e a r t h mineralogy of the Mohave County pegmatites, NW Arizona byS.L. Hanson, A U. Falam;... 4:15 Natromontebrasite from the Meyers quarry, Fremont County, CObyM. I. Jacobson,.1, W Nizamoff,A. U. Falster...10:30 T h e Fengjiashan Wollastonite mine, Daye County, Hubei Province, China by B. Opens 10:45 N e w |  | | Journal (article/letter/editorial) | | element enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral chemistry...element enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral chemistry...element enrichment in crystallising albitespodumene pegmatite and wallrocks: constraints from mineral chemistry...viable deposits of metal-bearing minerals. Albite-spodumene pegmatites, which represent important resources...worldwide, al challenge the general rules of pegmatite petrogenesis as these are nearly homogeneous bodies |  | | Report (issue) | | :Y . Cenozoic Geology of the Granite Mountains Area, Central Wyoming GEOLOGICAL SURVEY PROFESSIONAL...Geological Survey of Wyoming and the Department of Geology of the University of Wyoming as part of a program...THE GRANITE MOUNTAINS AREA, CENTRAL WYOMING Granite Mountains, the only major uplift in Wyoming composed...Formation on White Ridge (B); two Precambrian granite peaks, Lankin Dome (C) and Mcintosh Peak (D); highest...probably mark uppermost limi t of burial of mountains (F); "soda lake" on upper part of Split Rock Formation |  | | Journal (article/letter/editorial) | | A TECHNIQUE FOR UNDERSTANDING THE DYNAMICS OF PEGMATITE CRYSTALLIZATION MICHAEL A. WISE§ AND CATHLEEN...Washington, D.C., 20013, USA Keywords: cathodoluminescence, pegmatite minerals, Black Mountain, Maine. INTRODUCTION...interaction. One of the many remaining challenges of pegmatite petrogenesis is understanding the role of fluids...alteration of primary minerals by externally- or pegmatite-derived fluids is common in chemically evolved...textures are sometimes difficult to identify. Some pegmatite units (e.g., fine-grained lepidolite or saccharoidal |  | | Book (volume) | | greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...However, San Diego County, California, is arguably the most important gem-pegmatite district in North...in Pala, California better than those from Black Mountain in Rumford, Maine? Are the cassiterite crystals...coating molds of brachiopod shells in Somerset County. The restriction formerly placed on a mineral's |  | | Journal (article/letter/editorial) | | magmatic–hydrothermal transition in rare-element pegmatite crystallization are obscure, and the role of hydrothermal...minerals (CGM) from a rare-element pegmatite of the albite-spodumene subtype from Aclare, southeast Ireland...main Ta mineralization stage appears late in the pegmatite-forming process. Most researchers agree that fluid...fluid exsolution occurs during pegmatite formation, which is documented by miarolitic cavities, fluid...micas are routinely analyzed in rare-element pegmatite exploration studies, published data for Sn and |  | | Journal (article/letter/editorial) | | BERTHIERINE FROM THE PULSIFER GRANITIC PEGMATITE, POLAND, MAINE, USA M I C H AE L A. W IS E Department of...20560, USA Abstract—A new occurrence of berthierine has been found in the Pulsifer granitic pegmatite, near...cordierite-group minerals. Key Words—Berthierine, Granitic Pegmatite, Miarolitic Cavity, Hydrothermal Fluids, Pulsifer...triphylite-calcian beusite intergrowths. In the Hagendorf-Sud pegmatite, berthierine occurs as thin, dark green idiomorphic...alteration of yttrian hellandite in the Evans-Lou pegmatite, Quebec (Hogarth, 1972). In altered pegmatites |  | | Book (edition) | | localities in Oregon, Wash ington, Idaho, Montana, and Wyoming. Illustrated with maps and photos. For the gem...length ranges, the applications of the use of "black light" has spread to many fields of practical utility...ultraviolet lamps. These have been referred to as "black light." This is quite correct, for the actual ultra...so as to be distinc tive. Found only in Benito County, Cali fornia, the mineral is reported to fluo resce...distin guishing the red gem garnet from red spinel. GRANITE. Granites do not show a characteristic or bright |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...[1975, vol. 6, no. 1, p. 22-25.] Newry, Maine, a pegmatite phosphate locality (by V. T. King) [1975, vol...vol. 8, no. 6, p. 475.]* The best of San Diego County (by W. Larson) [1977, vol. 8, no. 6, p. 507-515...vol. 11, no. 6, p. 363-367, 370.]* The Urubu pegmatite and vicinity [Brazil] (by J. and J. Cassedanne)...no. 1, p. 19-28.] The Jensen quarry, Riverside County, California (by F. DeVito and A. Ordway) [1984 |  | | Book (volume) | | ............. 83 The History of Lord Hill, Black Mountain, Mount Apatite, and Nathaniel H. Perry . ....... 315 Duane L. Leavitt The Bennett Pegmatite, Oxford County, Maine . ...............................King and Eugene E. Foord Mineral Photographs (Black-and-White Plates) ................................permanent photographic exhibits in the northeastern USA. The Shaubs have been active in ornithological research...his first visit to the tourmaline-bearing granite pegmatite at Mount Mica in 1952 and Gene eventually |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...old dumps. In 1975-1976, Brunet collected sharp, black, flattened hexagonal ilmenite crystals to 7 .5 cm...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted |  | | Book | | •• ROADSIDE EOLOGY INE D. W. Caldwell • • Mountain Press Publishing Company M issoula, Montana 1998...Maine 707 M aine 5: Saco-Bethel / 14 Maine 26: Pegmatite Alley, Portland Bel h<·I Interstate 95: Brunswick-...Patten-Baxter State Park 267 Northern Maine and The County 277 U.S. 1: H oulton- For t Kent 283 Maine 11:...of the pegmatites in Maine. They own several pegmatite quarries, in which collecting, identification...Boundary 66 mya* Cretaceous Igneous rocks in York County. 68 to 100 mya Jurassic Basalt dikes near coast |  | | Report (issue) | | Pegmatite Investigations 1942-45 New England By EUGENE N. CAMERON and OTHERS GEOLOGICAL SURVEY PROFESSIONAL...______________________________________ _ Location of pegmatite districts ___________________ _ Previous work...Acknowledgments ______________________________ _ History of pegmatite mining inN ew England _______ _ Mica mining _...deposits _______________________ _ Geology of the pegmatite districts of Maine __ :. . _____ _ Metamorphic...________________________________ _ Geology of the pegmatite districts of New Hampshire_ Rock units ______ |  | | Journal (article/letter/editorial) | | Oklahoma. The pegmatites were the Bennett pegmatite mine, Oxford County, Maine (Wise et al. 1994; Wise and Rose...Harding pegmatite, Taos County, New Mexico (Chakoumakos and Lumpkin 1990); Strickland-Cramer pegmatite, Portland...Portland, Connecticut; Midnight Owl pegmatite, White Picacho District, Arizona (London and Burt 1982);...1982); the Black Mountain pegmatite, Rumford, Maine (Brown and Wise 2001); and the Pulsifer quarry, Androscoggin...Androscoggin County, Maine (King and Foord 1994; Harvard Mineralogical Museum number 122454). Two apatites |  | | Journal (article/letter/editorial) | | CRYSTALS FROM THE BALMAT DISTRICT, ST. LAWRENCE COUNTY, NEW YORK. S . C. Chamberlain, Department of Bioengineering...shown in the center. Magnetite occurs as lustrous black crystals up to 2.5 cm on edge. Most crystals are...equant octahedra at the ends. Other species are jet-black baddeleyite, often bent in curves and rehealed;...locality. FIBROUS MUSCOVITE FROM MOUNT MICA PEGMATITE, PARIS, MAINE. V. T. King, P.O. Box 90888, Rochester...Rochester, NY 14609. The Mount Mica granitic pegmatite is a thin (3-7 meter), moderately dipping (20”-30”s) |  | | Book | | the Sierra Nevada and the Klarnath Mountains provinces. These mountain regions , together with the Basin...are reported by county of occurrence. Map 1-2 shows the county boundaries and county names. When possible...'ID:[~ • ,., 1 - - EXPLANATION I KLAMATH MOUNTAINS n CASCADE RANGE - - O e -o ,-- I I ~...,o Map 1-2. Outline map of California showing county boundaries. __ _) 4 MINERALS OF CALIFORNIA...in placers of the Potholes District of Imperial County, near the Colorado River about 10 miles north of | | | Book | | mainly in Nevada and the Klamath Mountains provinces. These mountain regions, together with the Basin...species are reported by 1-2 shows the county boundaries and county names. When possible, locations of mines...within a township is illustrated by Figure 1-1. county of occurrence. Map *M. Fleischer’s 1980 Glossary...SCALE o 4o ao i;o uiiti EXPLANATION KLAMATH MOUNTAINS H CASCADE RANGE HI MODOC PLATEAU COAST RANGES...Map 1-2. Outline map of California showing county boundaries. 4 MINERALS OF CALIFORNIA R5W i |  | Dyar, M. Darby, Taylor, Marjorie E., Lutz, Timothy M., Francis, Carl A., Guidotti, Charles V., Wise, Michael (1998) Inclusive chemical characterization of tourmaline; Mossbauer study of Fe valence and site occupancy. American Mineralogist, 83 (7) 848-864 doi:10.2138/am-1998-7-817 | Journal (article/letter/editorial) | | Hermonet al. 1973) black nodulefrom the Alto Lighonapegmatitefield,Zambezia,Mozambioue black striated"pocket"crystalfrom...striated"pocket"crystalfrom a pegmatite,MinasGerais,Brazil black radiatingcryslalsforminga spherewith secondaryCu...DeKalb,St LawrenceCo , New York "aphrizite"luslrous,black euhedrato 5 mm in granitefrom the Harz Mtns, Germany...vein in quartztrom a wolframitedepositat Copper Mountain,Picurisdistrict,Taos Co , New Mexico Vanadian...o r dO , x f o r dC o , M a i n e Small Falls pegmatite,Rumford,OxfordCo , Maine from a graniticpegmatiteassociatedwith |
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