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scandium

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Journal Article
Published: 16 September 2021
Geochemistry: Exploration, Environment, Analysis (2021) 21 (3): geochem2021-015.
... article distributed under the terms of the Creative Commons Attribution 4.0 License ( http://creativecommons.org/licenses/by/4.0/ ) portable XRF spectral interference scandium calcium nickel laterite New Caledonia CNRS ANR-10-LABX-21-RESSOURCES21 CNRT "nickel et son environnement...
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Journal Article
Published: 25 March 2021
The Canadian Mineralogist (2021) 59 (2): 445–452.
... group crystal structure pegmatite Madagascar Scandium is a rare chemical element in nature. Its abundance in the upper continental crust of the Earth is 14 μg/g, which is similar to Pb (17 μg/g) and Nb (12 μg/g; Rudnick & Gao 2014 ). It exhibits a dispersed lithophile behavior and rarely...
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Journal Article
Published: 01 July 2020
American Mineralogist (2020) 105 (7): 1099–1103.
...Mathieu Chassé; Marc Blanchard; Delphine Cabaret; Amélie Juhin; Delphine Vantelon; Georges Calas Abstract Scandium is often associated with iron oxides in the environment. Despite the use of scandium as a geochemical tracer and the existence of world-class supergene deposits, uncertainties...
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Journal Article
Published: 01 May 2020
The Canadian Mineralogist (2020) 58 (3): 367–379.
..., their chalcophilicity indices show relatively small differences from 7 to 5, and the concept of availability of cations should be considered as well. Complete miscibility between genthelvite and helvine, as shown in some previous investigations, is confirmed by the present study. Scandium-bearing helvine from...
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Journal Article
Published: 01 March 2020
South African Journal of Geology (2020) 123 (1): 19–34.
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Journal Article
Published: 01 October 2019
Geological Magazine (2020) 157 (5): 719–728.
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Journal Article
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 799–801.
...Georg Steffenssen; Axel Müller; Nanna Rosing-Schow; Henrik Friis §   Corresponding author e-mail address : georg.steffenssen@gmail.com © 2019 Mineralogical Association of Canada 2019 pegmatite garnet scandium Tørdal The Sveconorwegian (Grenvillian) Tørdal pegmatite...
Journal Article
Published: 15 July 2019
The Canadian Mineralogist (2019) 57 (4): 489–498.
...@idpa.cnr.it , pietroevignola@gmail.com 15 February 2019 18 April 2019 © 2019 Mineralogical Association of Canada 2019 The miarolitic NYF pegmatites hosted by the calc-alkaline Baveno pluton contain an important Sc-minerals association. Indeed, six of the 19 known scandium mineral...
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Journal Article
Published: 01 May 2018
American Mineralogist (2018) 103 (5): 819–823.
... of America 2018 Mineralogical Society of America Oxygen fugacity upper mantle vanadium scandium partitioning clinopyroxene silicate melt Oxygen fugacity ( f O 2 ) is an important parameter that can significantly affect the geochemical and geophysical properties of Earth's mantle...
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Journal Article
Published: 01 June 2017
American Mineralogist (2017) 102 (6): 1244–1253.
... 14.1 and 18.8 T data ( Table 2 ) do not resemble previously reported spectra for known scandium phases, such as the Sc 2 O 3 synthesized at the same temperature (Sc 2 O 3 has two distinct Sc octahedral sites and its spectrum correspondingly has two overlapped quadrupolar powder patterns) ( Kim et al...
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Journal Article
Journal: Geology
Published: 01 September 2016
Geology (2016) 44 (9): 751–754.
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Series: Reviews in Economic Geology, Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.13
EISBN: 9781629490922
... Abstract Sandstone-hosted deposits mined primarily for their uranium content also have been a source of vanadium and modest amounts of copper. Processing of these ores has also recovered small amounts of molybdenum, rhenium, rare earth elements, scandium, and selenium. These deposits share...
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Journal Article
Published: 01 September 2015
The Canadian Mineralogist (2015) 53 (5): 833–844.
... of jarosite-type compounds . Canadian Metallurgical Quarterly 45 , 249 – 260 . Dutrizac, J.E. & Chen, T.T. ( 2009 ) The behaviour of scandium, yttrium and uranium during jarosite...
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Journal Article
Published: 01 July 2015
American Mineralogist (2015) 100 (7): 1434–1451.
.... Overgrowing (TurP2) and replacing (TurS) Li-rich fluor-schorl to fluor-elbaite is typically depleted in Sc (21–60 ppm) and Y+REE (3–47 ppm) with well-developed tetrad effect in the first (La-Nd) and the second (Sm-Gd) tetrads. Scandium- and REE-rich black tourmaline (TurP1) crystallized earlier from the melt...
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Journal Article
Published: 01 April 2014
American Mineralogist (2014) 99 (4): 654–666.
... are not stated because they are taken directly from the data of the matching Sc 4 Zr 3 O 12 phase in Rossell (1976) . Allendeite has a fluorite-related superstructure. Zirconium and scandium are both seven-coordinated to oxygen, on average, and randomly distributed over two sets of general sites...
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Journal Article
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 2193–2196.
... added as 0.6 wt% of their oxides (Ce as CeO 2 ). Scandium and V were added as Sc 2 O 3 and V 2 O 3 and doped to 0.1 wt%. Experimental charges of the Y98 composition were pasted onto Re-wire loops at imposed oxygen fugacities of IW−1, IW, IW+1, IW+2, and QFM. All experiments were held for 8 h at 1500...
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Journal Article
Published: 27 September 2013
Geochemistry: Exploration, Environment, Analysis (2013) 13 (4): 249–266.
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Journal Article
Published: 01 May 2013
American Mineralogist (2013) 98 (5-6): 870–878.
... scandium. Holotype material has been deposited under catalog USNM 7555 in the Smithsonian Institution’s National Museum of Natural History, Washington D.C., U.S.A. Section USNM 7555 also contains type davisite (IMA 2008-030; Ma and Rossman 2009b ). The Allende meteorite fell in and near Pueblito de...
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Journal Article
Published: 01 May 2013
Scottish Journal of Geology (2013) 49 (1): 15–31.
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Journal Article
Published: 01 July 2012
American Mineralogist (2012) 97 (7): 1219–1225.
... of bixbyite-type scandium- and rare-earth sesquioxides ( Ubaldini and Carnasciali 2008 ) and subsequently refined based on the observed energies of Raman shifts in panguite ( Dowty 1987 ). We processed the observed Raman spectrum by removing the background and subtracting the spectrum of adjacent davisite...
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