 | | Journal (article/letter/editorial) | | (2006) SAMARSKITE-(Yb): A NEW SPECIES OF THE SAMARSKITE GROUP FROM THE LITTLE PATSY PEGMATITE, JEFFERSON...JEFFERSON COUNTY, COLORADO WILLIAM B. SIMMONS§ Department of Geology and Geophysics, University of New Orleans...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 |  | | Journal (article/letter/editorial) | | 2000 Lakeshore Drive, New Orleans, Louisiana 70148, USA Sarah L. HANSON Geology Department, Adrian College... 110 S. Madison Street, Adrian, Michigan 49221, USA Alexander U. FALSTER and Karen L.WEBBER Department...2000 Lakeshore Drive, New Orleans, Louisiana 70148, USA Abstract Pegmatites enriched in the rare-earth elements...Wisconsin through Colorado to Arizona. Four widely geographically spaced pegmatite districts that are...are compared and contrasted in this study. The pegmatite districts include the circa 1.5 Ga Wausau syenite |  | | Journal (article/letter/editorial) | | FROM A PEGMATITE MIAROLITIC CAVITY IN CHEYENNE CANYON, EL PASO COUNTY, COLORADO GARY ZITO Colorado School...Engineering Department, 1500 Illinois St., Golden, Colorado 80401, U.S.A. SARAH L. HANSON§ Adrian College...A miarolitic cavity in a pegmatite in Cheyenne Canyon, El Paso Co., Colorado has an unusual mineral assemblage...elements. The mineral assemblage in this small pegmatite pocket in Cheyenne Canyon illustrates that variability...composition in small pegmatite systems can be as complex as those in larger pegmatite systems. Keywords: |  | | Journal (article/letter/editorial) | | recognition of his research on pegmatites and pegmatite minerals (e.g., columbite-group minerals [Falster...NYF-type pegmatites of the Wausau complex in Marathon County, Wisconsin (Falster, Buchholz, and Simmons 2013)...2013), and the LCT-type pegmatites of Florence County, Wisconsin (Falster, Simmons, and Webber 1996). He...been a coauthor on the descriptions of seven new pegmatite minerals: esperanzaite (Foord et al. 1999a), simmonsite...al. 2001), pezzottaite (Laurs et al. 2003), samarskite(Yb) (Simmons, Hanson, and Falster 2006), galliskiite |  | | Journal (article/letter/editorial) | | Sukhanovaa, and Yu. B. Marina aSt. Petersburg Mining University, St. Petersburg, 199106 Russia *e-mail:...River region—fergusonite-(Y), euxenite-(Y), samarskite-(Yb), aeschynite, Nb-bearing wolframite—have been...as promising for Nb, Y, and REE. Fergusonite, samarskite, euxenite, and Nb-bearing wolframite are indicators...mineralization. Keywords: fergusonite, euxenite, samarskite, aeschynite, wolframite, zwitter, lithium–fluorine...earlier explored deposits and prospected areas in mining territories in Russia. In particular, tin deposits |  | Hanson, S. L., Falster, A. U., Simmons, W. B., Brown, T. A. (2012) Allanite-(Nd) from the Kingman Feldspar Mine, Mojave Pegmatite District, Northwestern Arizona, USA. The Canadian Mineralogist, 50 (4) 815-824 doi:10.3749/canmin.50.4.815 | Journal (article/letter/editorial) | | KINGMAN FELDSPAR MINE, MOJAVE PEGMATITE DISTRICT, NORTHWESTERN ARIZONA, USA Sarah L. HANSON§ Geology Department... 110 S. Madison Street, Adrian, Michigan 49221, USA Alexander U. FALSTER, William B. SIMMONS and TJ...Drive, New Orleans, Louisiana 70148, USA Abstract The Kingman pegmatite, located in the Cerbat Range in northwestern...Paleoproterozoic granitic rocks. This post-orogenic pegmatite was intruded into these granites during the middle...along the recrystallized rim. As the Kingman pegmatite is not associated with a parental granite and |  | | 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 |  | | Journal (article/letter/editorial) | | and 220Rn emanations from powdered samples of samarskite as a function of annealing temperature Dariusz...thoron (220Rn) were measured from fully metamict samarskite collected from Centennial Cone after 1 h and...reference sample and from the original samarskite sample. Keywords: Samarskite, radon emanations, thoron emanations...Centennial Cone, 222 Rn, 220Rn 222 Introduction Samarskite is a complex Nb-Ta-Ti-REE + Y-Ca-U-Th multiple...19 samarskite samples after annealing at 800 °C under hydrogen and on analysis of samarskite-(Yb) from |  | 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) | | Published online April 2010 Preservation of the samarskite structure in a metamict ABO4 mineral: a key to...original samarskite structure were identified in a metamict ABO4 mineral from Beinmyr pegmatite, Norway...of the sample confirmed the affiliation to the samarskite group giving the general formula (REE0.322Ca0...well related to the orthorhombic low-temperature samarskite modification with cell parameters a ¼ 5.68(1)...experimental temperatures. At 800 C a high-temperature samarskite phase (s.g. P2/c) co-crystallised, with an increase |  | 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) | | PAPER Redefinition and crystal chemistry of samarskite‑(Y), YFe3+Nb2O8: cation‑ordered niobate structurally...Germany, part of Springer Nature 2019 Abstract Samarskite-(Y), the mineral known for almost 180 years only...observed [I > 2σ(I)] independent reflections. Samarskite-(Y) is monoclinic, P2/c, a 9.8020(8), b 5.6248(3)...𝛴2.02 O8. Samarskite-(Y) from the type locality, the Blyumovskaya Pit, Ilmeny Mountains, South Urals, Russia...Y0.34 Ln0.20 𝛴0.54 U4+ Th Mn Ta Ti O Fe Nb . Samarskite-(Y) is the first example of 0.03 1.14 0.70 0 |  | 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) | | Non-Metamict Aeschynite-(Y), Polycrase-(Y), and Samarskite-(Y) in NYF Pegmatites from Arvogno, Vigezzo Valley...Alps, Italy, pegmatite dikes are unique in the scenario of a tertiary alpine pegmatite field because...including aeschynite-(Y), polycrase-(Y), and samarskite-(Y). They are associated with additional typical...unit-cell data for aeschynite-(Y), polycrase-(Y), and samarskite-(Y) by single-crystal X-ray diffraction. Aeschynite-(Y)...allowed for both to provide space groups whereas samarskite-(Y) was the first crystal from pegmatites for |  | | Journal (article/letter/editorial) | | the actual structure of samarskite-(Y)? A TEM investigation of metamict samarskite from the Garnet Codera...Codera dike pegmatite (Central Italian Alps) Gian Carlo Capitani1,*, Enrico Mugnaioli2, and Alessandro Guastoni3...Codera dike pegmatite (Central Italian Alps). These oxides have compositions in the samarskite-(Y) field...noticeably consisting of relicts of the original samarskite structure, were deeply investigated by electron...the retrieved crystal structure of untreated samarskite is consistent with aeschynite and not with ixiolite |  | 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) | | 303-319 (2014) DOI : 10.3749/canmin.52.2.303 SAMARSKITE-GROUP MINERALS AND ALTERATION PRODUCTS: AN EXAMPLE...M. Borna 9, Poland Abstract Ishikawaite and samarskite-(Y) are indicators of an NYF signature in the...enrichment in Pb and Bi. Keywords: ishikawaite, samarskite-(Y), pyrochlores, mixed NYF+LCT pegmatites, Piława... the canadian mineralogist Introduction The Samarskite Group Minerals (SGM) are commonly used as indicators...the geochemical evolution of the pegmatite-forming melt. Samarskite-(Y) and ishikawaite of SGM were recently |  | | 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 |  | | Journal (article/letter/editorial) | | 2015), with Ingrao et al. (2019) showing that Sm and Yb can also be divalent under ultra-reducing conditions...Valence 3+ 4+ Zr Tb Pr Hf U Th Ce Lu Tm Ho Sc Yb Er YDy Tb Eu Gd Nd Sm Pr Ce La Mg 90 Sr Ca...two localities: the type locality at Stetind pegmatite in Tysfjord, Norway (Fig. 3a; Schlüter et al...., monazite-(Sm), florencite-(Sm), samarskite-(Yb), or xenotime-(Yb); Buck et al. 1999; Masau et al. 2002;...(1999) Xenotime-(Yb), YbPO4, a new mineral species from the Shatford Lake pegmatite group, southeastern |  | Ge, Xiangkun, Fan, Guang, Li, Guowu, Shen, Ganfu, Chen, Zhangru, Ai, Yujie (2017) Mianningite, ([], Pb, Ce, Na) (U4+, Mn, U6+) Fe3+ 2(Ti, Fe3+)18 O38, a new member of the crichtonite group from Maoniuping REE deposit, Mianning county, southwest Sichuan, China. European Journal of Mineralogy, 29 (2) 331-338 doi:10.1127/ejm/2017/0029-2600 | Journal (article/letter/editorial) | | crichtonite group from Maoniuping REE deposit, Mianning county, northwest Sichuan, China 4 XIANGKUN GE1,*, GUANG...group from the Maoniuping REE deposit, Mianning county, Sichuan province, China. It was found in fractures... The Maoniuping deposit is located in Mianning county, Sichuan province, China, and is the third largest...Obo deposit, China, and the Mountain Pass deposit, USA (Yang et al., 2000, 2001). Recently, two new minerals...near the well-known Maoniuping REE mine, Mianning county, Sichuan province, China (28°240 2000 N, 101°590 |  | | Journal (issue) | | Deze maand worden specimens van ludwigiet van Utah (USA) aangeboden. Meer details hierover vind je elders...Recherche de diamants à Murfreesboro, Arkansas, USA * NAUTILUS INFO 31(3), 11.06 * MINERALOGICAL RECORD...1119-1126 Samarskite-(Yb) : a new species of the samarskite group from the Little Patsy pegmatite, Jefferson...Jefferson Co., Colorado 1127-1136 Jonassonite, Au(Bi,Pb)5S4, a new mineral species from Nagybörzsöny, Hungary...37(5), 10.06 9-12 De mineralenbeurs van Denver, USA 13-15 Opaal 16-19 Topaas 354-355 Died, Gilbert Gauthier |  | | 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 |
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Little Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA