| | Report (issue) | 6(2)° Z = 2 X-ray Powder Pattern: Near Åskagen quarry, Sweden. (amorphous until heated to 600o C) 2.897...16] 15.85 29.51 0.55 98.75 (1) Near Åskagen quarry, Värmland, Sweden; average of 4 electron microprobe...allanite-(Ce), brookite, gadolinite-(Y), allophаne. Distribution: Near Åskagen quarry, mining village Torskebäcken...Torskebäcken, about 12 km east of Filipstad, Värmland, Sweden. Name: For the quarry that produced the first specimen | | Skoda, R., Cempirek, J., Filip, J., Novak, M., Veselovsky, F., Ctvrtlik, R. (2012) Allanite-(Nd), CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Askagen, Sweden. American Mineralogist, 97 (5) 983-988 doi:10.2138/am.2012.3936 | Journal (article/letter/editorial) | CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Åskagen, Sweden Radek Škoda,1,* Jan Cempírek,2 Jan Filip,3...Nd-analog of allanite-(Ce), occurs in the Åskagen pegmatite, central Sweden. It forms fine-grained aggregates...thalénite-(Y). The other associated minerals include: iimoriite-(Y), keiviite-(Y), allanite-(Y), and tengerite-(Y)...tengerite-(Y). Allanite-(Nd) is biaxial (–); with refractive indices α = 1.723(5), β = 1.754(7), γ = 1...Epidote supergroup, allanite, neodymium, pegmatite, Åskagen Introduction Minerals belonging to the allanite | | Škoda, Radek, Plášil, Jakub, Jonsson, Erik, Čopjaková, Renata, Langhof, Jörgen, Galiová, Michaela Vašinová (2015) Redefinition of thalénite-(Y) and discreditation of fluorthalénite-(Y): A re-investigation of type material from the Österby pegmatite, Dalarna, Sweden, and from additional localities. Mineralogical Magazine, 79 (4) 965-983 doi:10.1180/minmag.2015.079.4.07 | Journal (article/letter/editorial) | Redefinition of thalénite-(Y) and discreditation of fluorthalénite-(Y): A re-investigation of type...material from the Österby pegmatite, Dalarna, Sweden, and from additional localities RADEK ŠKODA1,*...Resources, Geological Survey of Sweden, Box 670, SE-751 28 Uppsala, Sweden Department of Earth Sciences...CEMPEG, Uppsala University, SE-752 36 Uppsala, Sweden Department of Geosciences, Swedish Museum of Natural...Natural History, Box 50007, SE-104 05 Stockholm, Sweden Department of Chemistry, Faculty of Science, Masaryk | | Raschke, Markus B., Anderson, Evan J. D., Van Fosson, Jason, Allaz, Julien M., Smyth, Joseph R., Škoda, Radek, Persson, Philip M., Becker, Randy (2018) Rare-earth crystal chemistry of thalénite-(Y) from different environments. Mineralogical Magazine, 82 (2) 313-327 doi:10.1180/minmag.2017.081.044 | Journal (article/letter/editorial) | 313–327 Rare-earth crystal chemistry of thalénite-(Y) from different environments MARKUS B. RASCHKE1,*...Associate Editor: Stuart Mills] ABSTR ACT Thalénite-(Y), ideally Y3Si3O10F, is a heavy-rare-earth-rich silicate...crystal structure and mineral chemistry of thalénite-(Y) were analysed by electron microprobe analysis, X-ray...granite of the Golden Horn batholith, Okanogan County, Washington State, USA, in comparison with new...batholith, Colorado, USA. The Golden Horn thalénite-(Y) occurs as late-stage sub-millimetre euhedral bladed | | | Journal (article/letter/editorial) | III, milarite-agakhanovite-(Y) III, phenakite III, and datolite-hingganite-(Y) III. Chemical composition...Al in bazzite III; REE in milarite-agakhanovite-(Y) III; variations in Fe/Mn in helvite-danalite and...magmatic Be-minerals within a single pegmatite district is exceptional and it is constrained by variable...beryl, phenakite, helvite-danalite, milarite- and gadolinite-group minerals, bohseite-bavenite, NYF pegmatites...Be-minerals that comprise phenakite, chrysoberyl, gadolinite-, helvite- and rhodizite-group minerals, beryllonite | | | Journal (article/letter/editorial) | Vol. 82(S1), pp. S133–S145 Gadolinite-(Nd), a new member of the gadolinite supergroup from Fe-REE deposits...deposits of Bastnäs-type, Sweden RADEK ŠKODA1,*, JAKUB PLÁŠIL2, RENATA ČOPJAKOVÁ1, MILAN NOVÁK1, ERIK JONSSON3...Resources, Geological Survey of Sweden, Box 670, SE-751 28 Uppsala, Sweden Department of Earth Sciences...Sciences, Uppsala University, SE-752 36 Uppsala, Sweden Department of Chemistry, Faculty of Science, Masaryk...Research Council, Box 1035, SE-101 38 Stockholm, Sweden [Received 26 January 2017; Accepted 7 June 2017; | | Belakovskiy, D., Welch, M. D., Camara, F., Gatta, G. D., Tait, K. T. (2012) New Mineral Names. American Mineralogist, 97 (8) 1523-1530 doi:10.2138/am.2012.596 | Journal (article/letter/editorial) | mineral formed by alteration of tennantite-rich ore in the oxidized zone of the famous Tsumeb mine, a...a dolostone hosted polymetallic hydrothermal ore deposit at Tsumeb, Namibia. It is associated to other...near Åskagen quarry, mining village Torskebäcken about 12 km east of Filipstad, Värmland, Sweden. Åskagenite-(Nd)...Nd-dominant analogue of allanite-(Ce), brookite, gadolinite-(Y), and allophаne. The new mineral forms coarse...reflects the predominance of Nd over other REE and Y in the site A2. Both the mineral and its name have | | | Journal (issue) | Norge 1982–2012, av Gunnar Raade 23 Hingganite-(Y) from a syenite pegma te at Virikkollen, Sande ord...elements + y rium, which is poten ally a new species, hingganite-(Nd). Hawthorne (2002) suggested that y rian...ened tabular hexagonal crystal from Ratnapura District, Sri Lanka. Photograph of sample R090019 reproduced...million years in age in the Svecofennian province of Sweden and Finland (e.g., Holtstam and Langhof 1999; Jonsson...and similar deposits in the Bergslagen ore region of central Sweden. Their history began with submarine | | | Journal (article/letter/editorial) | of REE and Y are the sheet and REE-silicates like siderophyllite-annite, and gadolinite-(Y) which underwent...Mandarino 1987), the Ballanite root^ includes allanite-(Y), allanite-(La), allanite-(Ce) and allanite-(Nd) terms:...Italy. The mineral chemistry studies included gadolinite group minerals (Pezzotta et al. 1999; Demartin...(Nestola et al. 2009), thortveitite and xenotime-(Y) (Guastoni et al. 2012). The crystallization processes...annitesiderophyllite, B-Be-Y-Zr-REE-silicates, gadolinite group minerals, Nb-Ta-Y-REE oxides, REE-carbonates | | | Book | Octahedra with 8 edges shared per MnO6 octahedron IX Y–F *380 Trigonal prism (in waimirite) VI Mn2+–O...600–715 In augelite, andalusite and vyuntspakhkite-(Y) 610–620 Isolated octahedron V VI Zr–O IV 3+...General Aspects of the Application … Fig. 1.15 X-, Y- and Z-polarized OH absorption spectra of diopside... Austria, measured on (100) and (010) plates (X, Y and Z are optical axes). The picture is drawn using...1999; Henry et al. 2011), where X = Na, Ca, K, □; Y = Li, Mg, Fe2+, Mn2+, Al, Cr3+, V3+, Fe3+, Ti; Z = |
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Åskagen Quarry, Persberg ore district, Filipstad, Värmland County, Sweden