 | Pršek, Jaroslav, Majka, Jaroslaw, Uher, Pavel, Chudík, Peter (2010) Niobium-tantalum minerals in the Skoddefjellet NYF granitic pegmatite, Svalbard Archipelago, Norway: Primary versus secondary assemblage. Neues Jahrbuch für Mineralogie - Abhandlungen, 187 (3) 235-248 doi:10.1127/0077-7757/2010/0172 | Journal (article/letter/editorial) | | Niobium-tantalum minerals in the Skoddefjellet NYF granitic pegmatite, Svalbard Archipelago, Norway: Primary versus secondary...of Nb-Ta mineralization in a granitic pegmatite from the Svalbard Archipelago, Arctic Caledonides and the...phases are discussed. The Skoddefjellet NYF pegmatite located in southwest Spitsbergen (Wedel Jarlsberg Land)...23 wt. % Nb2O5, ≤ 1.7 wt. % Ta2O5), ilmenite, fersmite and pyrochlore group minerals: including yttropyrochlore-(Y)...environment and increasing fluorine activity during the pegmatite evolution. The formation of secondary phases is |  | Majka, J., Pršek, J., Budzyń, B., Bačík, P., Barker, A. K., Łodziński, M. (2011) Fluorapatite-hingganite-(Y) coronas as products of fluid-induced xenotime-(Y) breakdown in the Skoddefjellet pegmatite, Svalbard. Mineralogical Magazine, 75 (1) 159-167 doi:10.1180/minmag.2011.075.1.159 | Journal (article/letter/editorial) | | fluid-induced xenotime-(Y) breakdown in the Skoddefjellet pegmatite, Svalbard J. MAJKA1,*, J. PRŠEK2, B. BUDZYŃ3...The pre-Caledonian NYF Skoddefjellet pegmatite in Wedel Jarlsberg Land, Svalbard, contains xenotime-(Y)...Ca- and F-bearing fluids interacting with the pegmatite. The occurrence of hinnganite-(Y) as a breakdown...There are few Ca-bearing primary phases in the pegmatite, indicating that the source of fluid was probably...of the pegmatite (i.e. beryl dissolution). K EY WORDS : xenotime, hingganite, apatite, pegmatite, Svalbard |  | Simandl, G. J., Petrus, J. A., Leybourne, M. I., Paradis, S., Akam, C. (2019) Primary fersmite and the direct indicator mineral concept, Mount Brussilof, British Columbia. GeoFile 2019-06. British Columbia Geological Survey | Report (issue) | | Introduction Fersmite Fersmite ([Ca,Ce,Na][Nb,Ta,Ti]2[O,OH,F]6) is a complex mineral, occurring commonly...element pegmatites. Most well-documented primary fersmite localities are found in Europe and correspond...formed during metamorphism and uplift. Globally, fersmite is the third most important Nb-ore mineral after...2018). The physical and chemical properties of fersmite contribute to its effective use as a direct indicator...magnesite (Simandl and Hancock, 1991). Primary fersmite is hosted by the sparry dolomite, occurring in |  | | Report (issue) | | deposits. Simandl et al. describe the occurrence of fersmite, a mineral rich in niobium, thorium, and rare...S., and Akam, C.: Characterization of primary fersmite from the Mount Brussilof magnesite deposit, southeastern...of fersmite from the Mount Brussilof magnesite deposit in southeastern British Columbia. Fersmite is...and rare earth element pegmatites. In contrast, fersmite at Mount Brussilof appears to be primary. It forms...and lining cavities in sparry magnesite. This fersmite is rich in Nb, Th and heavy rare earth elements |
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