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NYF-type pegmatite

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Journal Article
Published: 01 February 2006
The Canadian Mineralogist (2006) 44 (1): 87-103.
..., mainly Ti-dominant, are U-rich betafite (0.29–0.57 apfu U) and locally pyrochlore. The primary minerals are typical of an NYF-type pegmatite, and contrast with the LCT-type mineralogy (which includes abundant elbaite–liddicoatite, a pink variety of beryl, spodumene, and hambergite) typical of much...
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Journal Article
Published: 01 October 2004
The Canadian Mineralogist (2004) 42 (5): 1331-1355.
...Joel E. Gagnon; Iain M. Samson; Brian J. Fryer; Anthony E. Williams-Jones Abstract Hydrothermal fluorite–rare-earth-element REE mineralization occurs in the zoned Oregon No. 3 (niobium–yttrium–fluorine) granitic pegmatite (NYF-type) hosted by the Proterozoic Pikes Peak granite in north-central...
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Journal Article
Published: 01 June 2010
The Canadian Mineralogist (2010) 48 (3): 615-628.
...Milan Novák; Jan Filip Abstract An intragranitic, euxenite-type NYF pegmatite, Kožichovice II, derived from the ultrapotassic orogenic Třebíč syenogranite pluton, contains pale green prismatic crystals of primary beryl I, up to 3 cm long, arranged in radial aggregates. They are typically...
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Journal Article
Published: 01 February 2008
American Mineralogist (2008) 93 (2-3): 263-269.
...Robert F. Martin; Caterina De Vito; Federico Pezzotta Abstract The presence of amazonitic K-rich feldspar is considered an earmark of evolved granitic pegmatites of NYF type. Elements of an explanation of the “NYF pegmatite-amazonite” connection emerged in a study of the classic Anjanabonoina...
FIGURES
Journal Article
Published: 01 December 2005
The Canadian Mineralogist (2005) 43 (6): 2027-2048.
... setting; in contrast, NYF (Nb–Y–F-enriched) pegmatites, are affiliated with anorogenic suites, formed in an extensional setting, and really not fundamentally different in petrogenetic lineage from suites in silica-undersaturated systems, including carbonatites. Both LCT and NYF types involve magmas...
FIGURES
Journal Article
Published: 01 December 2012
The Canadian Mineralogist (2012) 50 (6): 1729-1750.
... are hematite, goethite, Mn oxides, clinobisvanite, bismuthite, and opal. The pegmatites are ascribed to the allanite–monazite type, REL–REE subclass, NYF family. Data on melt+fluid inclusion are consistent with crystallization of an aqueous, CO 2 -bearing melt at 475° < T < 600°C and ~3.0 to 3.7 kbar...
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Journal Article
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 917-933.
... they are not typical NYF pegmatites ( Hanson 1990 , Hanson et al . 1992 ). Early work on pegmatite classifications indicated affiliations of different pegmatite families to their parent granite type (S-, I-, and A-types) and tectonic environment (syn-, late-, post-orogenic, and anorogenic) but noted...
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Journal Article
Published: 01 December 2005
The Canadian Mineralogist (2005) 43 (6): 2005-2026.
... from I-type granites, and a mixed NYF + LCT family of diverse origins, such as contamination of NYF plutons by digestion of undepleted supracrustal rocks. Abstract Il y a eu plusieurs tentatives de classification de pegmatites granitiques au cours du siècle dernier, avec un taux de réussite et une...
FIGURES
Journal Article
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 863-877.
...-phosphate minerals analyzed are from LCT and NYF pegmatite dikes of the Central Alps, which includes three main areas: Vigezzo (LCT and NYF from the Vigezzo valley), Bodengo (NYF from the Leggia valley and LCT from the Cama valley), and Codera (LCT from Codera and Chiavenna valleys and Alpe Rossaccio). SEM...
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Journal Article
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 191-219.
.... The pegmatite dikes considered for classification plot in the LCT and mixed NYF-LCT families with the exception of the monazite-bearing VLGm dike, which is classified as a NYF pegmatite. While the pegmatite subclass and type can be defined according to the scheme of Černý & Ercit (2005) , a new “beryl...
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Journal Article
Published: 01 February 2003
The Canadian Mineralogist (2003) 41 (1): 117-137.
..., is a mesozonal, hornblende-bearing, metaluminous composite intrusion with lesser amounts of pegmatitic granite and felsitic satellite dykes. On the whole, pegmatite bodies show a mildly NYF-type geochemical and mineralogical signature (allanite- and magnetite-bearing), but in the region of the pegmatitic granite...
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Journal Article
Published: 01 March 2017
The Canadian Mineralogist (2017) 55 (2): 283-315.
... they formed during several different periods. In addition, the results imply that the majority of Sveconorwegian NYF pegmatites are not necessarily formed in an anorogenic setting in relation to A-type magmatism, but in compressional or extensional orogenic settings unrelated to pluton-scale magmatism...
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Journal Article
Published: 01 August 2012
The Canadian Mineralogist (2012) 50 (4): 1077-1094.
... pegmatite represents a special type of contaminated LCT pegmatite rather than a member of the mixed family. § E-mail address: mnovak@sci.muni.cz 02 07 2011 26 07 2012 © The Mineralogical Association of Canada 2012 Li-bearing pegmatites mixed (NYF + LCT) signature origin...
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Journal Article
Published: 01 October 2006
The Canadian Mineralogist (2006) 44 (5): 1119-1125.
...William B. Simmons; Sarah L. Hanson; Alexander U. Falster Abstract Samarskite-(Yb) occurs at the Little Patsy NYF-type granitic pegmatite in the South Platte district, Jefferson County, Colorado as black, metamict, anhedral masses up to tens of centimeters across that are intimately intergrown...
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Journal Article
Published: 01 August 2017
European Journal of Mineralogy (2017) 29 (4): 755-766.
...Milan Novák; Jaroslav Cícha; Renata Čopjaková; Radek Škoda; Michaela Vašinová Galiová Four distinct paragenetic, morphological and compositional types of milarite-group minerals were distinguished in the NYF pegmatite Velká skála, Písek district, Czech Republic (Moldanubian Zone). The simply zoned...
Journal Article
Published: 01 February 2011
The Canadian Mineralogist (2011) 49 (1): 359-380.
... to the NYF (REL–REE) pegmatites: allanite-type, euxenite-type (+ euxenite, aeschynite, pyrochlore, beryl, niobian rutile, zircon), and the most evolved euxenite-type pegmatite, Klučov I (with annite, X Mg 0.09), cassiterite, herzenbergite, and abundant graphic intergrowths of quartz + feldspars and quartz...
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Journal Article
Published: 01 December 2012
The Canadian Mineralogist (2012) 50 (6): 1713-1728.
... or peralkaline pegmatites. Calcic pyroxenes like diopside, though unusual, are present in Li- and B-rich and chemically evolved pegmatites, and sodic amphiboles of the riebeckite–arfvedsonite type are present in granitic NYF pegmatites ( London 2008 ). Fluor-edenite, F-rich tremolite and diopside are found only...
FIGURES
Journal Article
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 879-898.
...- and samarskite-group minerals (CGM and SGM, respectively) ( Pieczka et al . 2013 , 2014 ). The purpose of this project was to shed light on the processes that control the crystallization and alteration of these NYF-signature minerals in pegmatitic systems that were affected by an LCT-type overprint...
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Journal Article
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 971-987.
...Petr Gadas; Milan NovÁk; Adam Szuszkiewicz; Eligiusz SzeŁĘg; Michaela VAŠINOVÁ GaliovÁ; Jakub Haifler Abstract Two distinct types of sekaninaite were found in zoned, miarolitic NYF pegmatites at Zimnik, Strzegom-Sobótka granitic massif: (1) graphic intergrowths of sekaninaite I (Sek-I) with quartz...
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Journal Article
Published: 01 April 1998
The Canadian Mineralogist (1998) 36 (2): 463-482.
...Daniel E. Kile; Eugene E. Foord Abstract Optical properties are presented for 66 samples of mica covering the range from annite-->biotite-->zinnwaldite-->ferroan lepidolite and ferroan muscovite from occurrences of granitic pegmatite (NYF type) throughout the Pikes Peak batholith (PPB...