 | | 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...the pegmatite, and is associated with ishikawaite, samarskite-(Y), zircon, columbite, monazite-(Ce) and |  | | 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) | | looking northwest acro88 the cliff’s of Glen Cove to South Park and the Tarryall Mountains. Researchers have...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...1978; Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks...Survey into “Early, Middle, and Late” Eras. In Colorado we because of the subsequent folding and overthrusting...subduction zone and possibly the creation Era in Colorado and Wyoming of a volcanic island arc. Carpenter |  | 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...minerals. Most of the allanite is Nd-rich allanite-(Ce). However, several of the samples have domains that |  | | Journal (article/letter/editorial) | | (specimen and cut stones), N'Chwaning mine, Hotazel, South Africa. Martin Zinn specimen and gemstones, Erica...stones) with smoky quartz on matrix, Mount Antero, Colorado. Denver Museum of Nature and Science specimen...Rhodochrosite on sulfides, Sweet Home mine, Alma, Park County, Colorado, Martin Zinn specimen, Jeff Scovil photo....November/December: Copper, Cliff mine, Keweenaw County, Michigan. A. E. Seaman Mineral Museum specimen...artist Rainer Jackle, 38-39; minerals named after South Africans, 48-53; Mount Malosa, Malawi, 31-37; Rhodes/rhodesite |  | | 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) | | 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) | | FROM T H E THIRTEENTH L A K E QUADRANGLE, WARREN COUNTY, NEW Y O R K . V. H. Collins and J. S. Collins...Schaller, W. T . 1932. Serendibite from War ren County, New York and its paragenesis. Amer. Min. 17:457-465...R I T E IN T H E LOCKPORT FORMATION I N MADISON COUNTY, NEW Y O R K . W. P. Dossert and S. C. Chamberlain...2-km band of Lockport Dolostone exposed along the south shore of Oneida Lake. The mineralized area is north...composite alkalic intrusive ex posed in Marathon County, Wisconsin. The complex con sists of four intrusive |  | | 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 |  | 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, |  | 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) | | 1127/ejm/2017/0029-2600 PrePub Article 3 Mianningite, (□,Pb,Ce,Na) (U4+,Mn,U6+) Fe3+2(Ti,Fe3+)18O38, a new member...crichtonite group from Maoniuping REE deposit, Mianning county, northwest Sichuan, China 4 XIANGKUN GE1,*, GUANG...Abstract: Mianningite (IMA 2014-072), ideally (□,Pb,Ce,Na)(U4þ,Mn,U6þ)Fe3þ2(Ti,Fe3þ)18O38, is a new member...group from the Maoniuping REE deposit, Mianning county, Sichuan province, China. It was found in fractures...zircon, allanite-(Ce), monazite-(Ce), bastnäsite-(Ce), parisite-(Ce), maoniupingite-(Ce), thorite, pyrochlore-group |  | 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...al. 2007). The mineral was a subject of special mining as a potential source of radium in 1911–1917 with |  | | 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...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...Codera pegmatite. This pegmatite belongs to swarms of pegmatite dikes cropping out along the ancient |  | | Journal (article/letter/editorial) | | these two cations have similar ionic radii, and Ce is more than six times as abundant as Pr, it seems...predictable. However, under oxidizing conditions, Ce loses four electrons instead of three resulting in...(58Ce4+ = [Xe]4f 0). Although the crustal abundance of Ce is only ~60 ppm (Rudnick and Gao 2014), fractionating...fractionating processes can concentrate it to the point where Ce-dominant minerals crystallize. Indeed, there are...are more than 150 known minerals with essential Ce in their formulas. The majority of these minerals contain |  | | Book (edition) | | Prague Printedin Czech Republicby Finidr.u.o .. Ce,ky Te~in 14/02/03/0 I All rights reserved•• ·o pan...dominant rareearth element (REE). e.g. monazite-(Ce), monazite(Nd), etc. In a few cases a similar procedure...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 |  | | Journal (issue) | | on Amazonite 7.5 cm, from the Smoky Hawk claim, Colorado. Collected by the Dorris family; Tom Spann photo...weakly in the oxide gangue; in others there are little families of crystals crossing at acute angles,...as if the door to the workshop has been opened a little too soon. Farther back in the channel there are...pocket in 1955 at least 25 others were found as mining progressed. The contents of these, which ranged...the 210-foot level slightly below and along the south side of the main ore zone. The wulfenite in this |  | | 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 |
|
