 | | Report (issue) | | CaNd(Al2Fe2+)(Si2O7)(SiO4)O(OH) Allanite-(Nd) Crystal Data: Monoclinic. Point Group: 2/m. As prismatic...crystals to 0.5 mm in aggregates in altered thalénite-(Y); as crude crystals to ~0.5 m. Physical Properties:...Z = 2 X-Ray Diffraction Pattern: Åskagen pegmatite, Värmland, Sweden. 2.89 (100), 2.70 (60), 2.61 (60)...54 10.85 0.41 [1.58] 99.37 (1) Åskagen pegmatite, Värmland, Sweden; average electron microprobe analysis...978(OH)1.032. Mineral Group: Epidote supergroup, allanite group. Occurrence: An accessory phase in the blocky |  | 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) | | 983–988, 2012 Allanite-(Nd), CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Åskagen, Sweden Radek Škoda...Republic Abstract Allanite-(Nd), ideally CaNdAl2Fe (SiO4)(Si2O7)O(OH), the Nd-analog of allanite-(Ce), occurs...occurs in the Åskagen pegmatite, central Sweden. It forms fine-grained aggregates within altered thalénite-(Y)...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 = 1.772(5) |  | Armbruster, Thomas, Bonazzi, Paola, Akasaka, Masahide, Bermanec, Vladimir, Chopin, Christian, Gieré, Reto, Heuss-Assbichler, Soraya, Liebscher, Axel, Menchetti, Silvio, Pan, Yuanming, Pasero, Marco (2006) Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18 (5) 551-567 doi:10.1127/0935-1221/2006/0018-0551 | Journal (article/letter/editorial) | | Members of the allanite subgroup are REE-rich minerals typified by the eponymous mineral “allanite”. This subgroup...determine the root name. In both clinozoisite and allanite subgroups no prefix is added to the root name...subgroup, [M3++ M4+]A2 > 0.50, [M2+]M3 > 0.50 → allanite subgroup, {[M2+]M3+M1 – [M3++ M4+]A2 } > 0.50...selected from among the divalent cations. (2) Allanite and dollaseite subgroups: For the sites involved...heterovalent substitution in A2 and O4 (i.e. M3 in the allanite subgroup; M3 and M1 in the dollaseite subgroup) |  | 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) | | 3749/canmin.50.4.815 ALLANITE-(Nd) FROM THE KINGMAN FELDSPAR MINE, MOJAVE PEGMATITE DISTRICT, NORTHWESTERN ARIZONA...LREE-enriched allanite and a near-absence of HREE-enriched minerals. Most of the allanite is Nd-rich allanite-(Ce)...have domains that are Nd-dominant, and thus are allanite-(Nd). This represents the fourth world location...location and the first reported U.S. location for allanite-(Nd). The Nd-dominant domains, which typically occur...highly oxidizing late-stage fluids that replaced allanite with bastnäsite-(Ce). Late-stage carbonate fluids |  | 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 |  | | Journal (article/letter/editorial) | | solutions of CaCeAl2(Fe3+2/3□1/3)[Si2O7] [SiO4]O(OH), allanite-(Ce) and REE-bearing epidote in miarolitic pegmatites...2 (Fe 3+ 2/3 □ 1/3 )[Si 2 O 7 ][SiO 4 ]O(OH), allanite-(Ce) and rare earth element (REE)-bearing epidote...between CaCeAl2(Fe3+2/3□1/3)[Si2O7][SiO4]O(OH), allanite-(Ce) and REE-free epidote, because reflect the...of REE and Y are the sheet and REE-silicates like siderophyllite-annite, and gadolinite-(Y) which underwent...dei Vestini 31, I -66100 Chieti, Italy Keywords Allanite . Baveno . Miarolitic cavities . NYF pegmatites |  | Biagioni, Cristian, Bonazzi, Paola, Pasero, Marco, Zaccarini, Federica, Balestra, Corrado, Bracco, Roberto, Ciriotti, Marco E. (2019) Manganiakasakaite-(La) and Ferriakasakaite-(Ce), Two New Epidote Supergroup Minerals from Piedmont, Italy. Minerals, 9 (6) 353 doi:10.3390/min9060353 | Journal (article/letter/editorial) | | ferriakasakaite-(Ce) were found in the small Mn ore deposit of Monte Maniglia, Bellino, Varaita Valley...a); ferriakasakaite-(Ce); epidote supergroup; allanite group; new mineral; Monte Maniglia; Piedmont;...monoclinic mineral species; of them, 17 belong to the allanite group, 10 to the clinozoisite group, Minerals...ferriakasakaite-(Ce), two new minerals belonging to the allanite group. In this group, a trivalent cation, typically...) and ferriakasakaite-(Ce) were found in the Mn ore deposit of Monte Maniglia, Bellino, Varaita Valley |
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Åskagen Quarry, Persberg ore district, Filipstad, Värmland County, Sweden