 | | Journal (article/letter/editorial) | | SAMARSKITE GROUP FROM THE LITTLE PATSY PEGMATITE, JEFFERSON COUNTY, COLORADO WILLIAM B. SIMMONS§ Department...70148, USA SARAH L. HANSON Department of Earth Science, Adrian College, Adrian, Michigan 49221, USA ALEXANDER...Louisiana 70148, USA ABSTRACT Samarskite-(Yb) occurs at the Little Patsy NYF-type granitic pegmatite in the South...South Platte district, Jefferson County, Colorado as black, metamict, anhedral masses up to tens of centimeters...core–margin contact within the pegmatite, and is associated with ishikawaite, samarskite-(Y), zircon, columbite |  | | Journal (article/letter/editorial) | | lead. Sixty-four samples from nine worldwide pegmatite localities were quantitatively analyzed to compare...and Florissant, Colorado; the Zapot pegmatite, Mineral County, Nevada; Carroll County, New Hampshire;...Rutherford peg168 ROCKS & MINERALS matites of Amelia County, Virginia; Wisconsin; Tordal, Norway; Russia; and...correlation. Three samples of amazonite from Amelia County, Virginia, repeatedly showed Pb concentration below...below the detection limits. Samples from Amelia County were also analyzed for trace amounts of iron and |  | Pieczka, Adam, Szuszkiewicz, Adam, Szełęg, Eligiusz, Ilnicki, Sławomir, Nejbert, Krzysztof, Turniak, Krzysztof (2014) SAMARSKITE-GROUP MINERALS AND ALTERATION PRODUCTS: AN EXAMPLE FROM THE JULIANNA PEGMATITIC SYSTEM, PIŁAWA GÓRNA, SW POLAND. The Canadian Mineralogist, 52 (2) 303-319 doi:10.3749/canmin.52.2.303 | Journal (article/letter/editorial) | | 50-204 Wrocław, pl. M. Borna 9, Poland Abstract Ishikawaite and samarskite-(Y) are indicators of an NYF signature...the final enrichment in Pb and Bi. Keywords: ishikawaite, samarskite-(Y), pyrochlores, mixed NYF+LCT pegmatites...geochemical evolution of the pegmatite-forming melt. Samarskite-(Y) and ishikawaite of SGM were recently recorded...predominant A-site cation (Hanson et al. 1999): U4+ in ishikawaite, (U,Fe,Y,Ca)(Nb,Ta) O 4 (Kimura 1922, Fleischer...pegmatites worldwide. Ishikawaite, first described from Ishikawa-gun, Ishikawa District, Japan (Kimura 1922 |  | | Journal (article/letter/editorial) | | Sukhanovaa, and Yu. B. Marina aSt. Petersburg Mining University, St. Petersburg, 199106 Russia *e-mail:...earlier explored deposits and prospected areas in mining territories in Russia. In particular, tin deposits...exploration carried out in 1980–1990 in the Badzhal district of the Khabarovsk region resulted in the discovery...granite (Beskin et al., 1999). In the Badzhal District, the formation of zwitter was for a long time...tin–tungsten mineralization source in the Badzhal district is closely related to the mineral base of strategic |  | | Journal (article/letter/editorial) | | on analysis of samarskite-(Yb) from the Little Patsy pegmatite annealed under a weakly reducing atmosphere...collected from a granitic pegmatite in Centennial Cone, Jefferson County, Colorado (U.S.A.). Table 1 lists...metamict samarskite (SCC) from Centennial Cone, Colorado, U.S.A. The specimen is 4 cm in length. About...analyzed a fully metamict samarskite from Beinmyr pegmatite (Norway) annealed in air and Ar/H2 atmosphere...Denver 1 × 2 degree quadrangle, north-central Colorado. U.S. Geological Survey Miscellaneous Investigations |  | Britvin, Sergey N., Pekov, Igor V., Krzhizhanovskaya, Maria G., Agakhanov, Atali A., Ternes, Bernd, Schüller, Willi, Chukanov, Nikita V. (2019) Redefinition and crystal chemistry of samarskite-(Y), YFe3+Nb2O8: cation-ordered niobate structurally related to layered double tungstates. Physics and Chemistry of Minerals, 46 (7) 727-741 doi:10.1007/s00269-019-01034-0 | Journal (article/letter/editorial) | | locality, the Blyumovskaya Pit, Ilmeny Mountains, South Urals, Russia, was studied for comparison; electron...tungstates · Crystal structure · Rare earths · Pegmatite · Metamict state · Phase transitions Introduction...the Blyumovskaya Pit) at the Ilmeny Mountains, South Urals, Russia. Later on (Rose 1847), the mineral...Samarsky-Bykhovets, a chief of Russian Corps of Mining Engineers who had supplied the specimens for the...Nb)O 4 (Brøgger 1906; Palache et al. 1944); ishikawaite, (U,Fe,Y)NbO4 (Kimura 1922); calciosamarskite |  | Tomašić, Nenad, Gajović, Andreja, Bermanec, Vladimir, Linarić, Maša, Rajić Su, Dangsheng Š koda (2010) Preservation of the samarskite structure in a metamict ABO4 mineral: a key to crystal structure identification. European Journal of Mineralogy, 22 (3) 435-442 doi:10.1127/0935-1221/2010/0022-2032 | Journal (article/letter/editorial) | | identified in a metamict ABO4 mineral from Beinmyr pegmatite, Norway, using selected area electron diffraction...et al., 2006). The uraniumdominant member is ishikawaite, the calcium-dominant one is calciosamarskite...originating from Beinmyr granite pegmatite situated in Landås, Iveland district of Aust-Agder province of southern...xenotime and beryl have been reported in the Beinmyr pegmatite (Bjørlykke, 1934). According to the classification...classification of Černý & Ercit (2005), the pegmatite belongs to the REL-REE subclass. The size of the samarskite |  | | Journal (article/letter/editorial) | | metamict samarskite from the Garnet Codera dike pegmatite (Central Italian Alps) Gian Carlo Capitani1,*...(YREE-U-Th)-(Nb-Ta-Ti) oxides from the Garnet Codera dike pegmatite (Central Italian Alps). These oxides have compositions...[namely samarskite-(Yb), calciosamarskite, and ishikawaite], then the samarskite mineral group should be...metamict mineral from the Garnet Codera dike pegmatite (Central Italian Alps), whose identification was...Codera Valley pegmatite The studied (Y-REE-U-Th)-(Nb-Ta-Ti) oxides occur in a pegmatite named Garnet Codera |  | Guastoni, Alessandro, Secco, Luciano, Škoda, Radek, Nestola, Fabrizio, Schiazza, Mariangela, Novák, Milan, Pennacchioni, Giorgio (2019) Non-Metamict Aeschynite-(Y), Polycrase-(Y), and Samarskite-(Y) in NYF Pegmatites from Arvogno, Vigezzo Valley (Central Alps, Italy) Minerals, 9 (5) 313 doi:10.3390/min9050313 | Journal (article/letter/editorial) | | Alps, Italy, pegmatite dikes are unique in the scenario of a tertiary alpine pegmatite field because...considered magmatic pulses that led to emplace the pegmatite field in the Central Alps. As an example, the...[11–15]. Arvogno pegmatite dikes (Figure 1) are unique within the tertiary alpine pegmatite field [16,17]...The Arvogno pegmatite dikes (Figure 1) are within thepegmatites tertiary alpine pegmatite field showing...Geological Sketch The tertiary, oligocenic, Alpine pegmatite field [16,17] is located in the Central Alps, |  | | Journal (issue) | | in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...paleoclimate controls of lithium-cesium-tantalum (LCT) pegmatite genesis, exhumation, and preservation……………………...rediscovered pegmatite in the Stettin Complex, Wausau Syenite Compley, Marathon County, Wisconsin, USA……………………………………………...REIMER, W. Mineralogical study of the Gonçalo Li-pegmatite deposit, Portugal……………………………………..23 FALSTER,...tz assemblage in the Emmons pegmatite, Greenwood, Oxford Co., Maine, USA: implication for the origin |  | | Book | | ........................................... 82 South Africa ...... ... ................................is a fue l for reactors to produce electricity, mining operati ons. Robert Lau f presents here a highly...softvva re, using data files from the Boulder, Colorado; Pau la Piilonen, Candian Museum of An1erican...structures in three dimensions for a richer Mountain Mining; Leonard Himes and Michael Jacob, appreciation...Czech Republic) and elsewhere in the Erzgebirge district. Those n1ines had been \VOrked for silver and |  | | Book (edition) | | abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...localities of magmatic origin (in the sequence North and South America and Greenland, then Europe, Asia, Africa...pegmatitic origin in the same sequence: North and South America and Greenland, then Europe, etc. For some |
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Little Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA