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dollaseite

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Journal Article
Published: 01 August 1988
American Mineralogist (1988) 73 (7-8): 838-842.
...Donald R. Peacor; Pete J. Dunn Abstract The crystal structure of dollaseite-(Ce) [ a = 8.934(18), b = 5.721(7), c = 10.176(22) Å, β = 114.31(12)°, space group P 2 1 / m ] has been refined, giving rise to the ideal formula CaREE 3+ Mg 2 AlSi 3 O 11 (OH)F with Z = 2. Formerly known as “magnesium...
Journal Article
Published: 01 September 2006
European Journal of Mineralogy (2006) 18 (5): 551-567.
... on the key sites are: A1 = M 2+ , A2 = M 3+ , M1 = M 3+ , M2 = M 3+ , M3 = M 2+ , O4 = O 2− , O10 = (OH)−. (3) Members of the dollaseite subgroup are REE-rich minerals typified by the eponymous mineral “dollaseite”. This subgroup may be derived from clinozoisite by homovalent substitutions and two coupled...
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Journal Article
Published: 01 January 2005
European Journal of Mineralogy (2005) 17 (1): 129-141.
... that are important for lanthanide sequestration in the Bastnäs-type skarn deposits in Västmanland. At the type locality (Malmkärra, Norberg district) it occurs as anhedral grains 0.2–3 mm across, in association with fluorbritholite-(Ce), tremolite, a serpentine mineral, magnetite, dollaseite-(Ce) and dolomite...
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CHEMICAL COMPOSITION OF <b>DOLLASEITE</b> – DISSAKISITE – ALLANITE FROM THE NORBER...
Published: 01 October 2007
TABLE 8. CHEMICAL COMPOSITION OF DOLLASEITE – DISSAKISITE – ALLANITE FROM THE NORBERG DISTRICT
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CHEMICAL COMPOSITION OF <b>DOLLASEITE</b> – DISSAKISITE – ALLANITE FROM THE NORBER...
Published: 01 October 2007
TABLE 8. CHEMICAL COMPOSITION OF DOLLASEITE – DISSAKISITE – ALLANITE FROM THE NORBERG DISTRICT
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Compositional diagram for <b>dollaseite</b> – dissakisite – allanite from subtype-...
Published: 01 October 2007
F ig . 17. Compositional diagram for dollaseite – dissakisite – allanite from subtype-2 deposits (Norberg District). Note that Al predominates over Fe 3+ in all samples.
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Fitted Mössbauer spectra for <b>dollaseite</b>–dissakisite. (A) Sample #270427 fr...
Published: 01 October 2007
F ig . 18. Fitted Mössbauer spectra for dollaseite–dissakisite. (A) Sample #270427 from Östanmoσa. (B) Sample 540027 from Malmkärra.
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MÖSSBAUER PARAMETERS FOR <b>DOLLASEITE</b> AND DISSAKISITE
Published: 01 October 2007
TABLE 9. MÖSSBAUER PARAMETERS FOR DOLLASEITE AND DISSAKISITE
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<b>Dollaseite</b> subgroup: accepted mineral species (in bold) along with selected...
Published: 01 September 2006
Table 4. Dollaseite subgroup: accepted mineral species (in bold) along with selected examples of recommended names for possible new members of epidote-group minerals.
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Comparison of the structures of västmanlandite-(Ce) and <b>dollaseite</b>-(Ce) in...
Published: 01 January 2005
Fig. 5. Comparison of the structures of västmanlandite-(Ce) and dollaseite-(Ce) in a view along [010] and [01̄0], respectively. Unit cells of each structure are shown. The orientations of the dollaseite-(Ce) module (D) and the törnebohmite-(Ce) module (T) in västmanlandite-(Ce
Journal Article
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 173-181.
.... They have been found in REE-rich assemblages in a variety of geological settings, including granitic NYF pegmatites, carbonatite and associated fenites, alkali-syenites, and hydrothermal-metasomatic skarns. Most frequently, they coexist with törnebohmite-(Ce), allanite- or dollaseite-group minerals...
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Journal Article
Published: 01 May 2018
Mineralogical Magazine (2018) 82 (S1): S133-S145.
... Sweden, where it occurs in association with fluorbritholite-(Ce), västmanlandite-(Ce), dollaseite-(Ce), bastnäsite-(Ce) and tremolite. Gadolinite-(Nd) forms anhedral grains up to 150 µm in size, commonly occurring as aggregates of olive green colour. The crystals are transparent with vitreous...
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Journal Article
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1073-1114.
...TABLE 8. CHEMICAL COMPOSITION OF DOLLASEITE – DISSAKISITE – ALLANITE FROM THE NORBERG DISTRICT ...
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Journal Article
Published: 01 October 2002
The Canadian Mineralogist (2002) 40 (5): 1411-1419.
... of the allanite subgroup include allanite-(Ce), allanite-(La), allanite-(Y), androsite-(La), dissakisite-(Ce), dollaseite-(Ce) and khristovite-(Ce). Lack of recognition of the recommendations of Nickel & Mandarino (1987) , and of the relation between members of the subgroup with “allanite” in their species...
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Backscattered electron image of a portion of a västmanlandite-(Ce) (v) gra...
Published: 01 January 2005
Fig. 1. Backscattered electron image of a portion of a västmanlandite-(Ce) (v) grain, with inclusions of magnetite ( m ), dollaseite-(Ce) ( d ) and serpentine plus relics of tremolitic amphibole ( s ). The arrow points to an inclusion of fluorbritholite-(Ce). The white scale bar equals 0.1 mm.
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Back-scattered electron images of gadolinite-(Nd) and associated  REE  mine...
Published: 01 May 2018
Fig. 1. Back-scattered electron images of gadolinite-(Nd) and associated REE minerals from ( a – c ) Malmkärra and ( d ) Johannagruvan. gd-gadolinite-(Nd), ds-dollaseite-(Ce), fb-fluorbritholite-(Ce), tr-tremolite, vl-västmanlandite-(Ce), bs-bastnäsite-(Ce). The aggregate from which
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BSE images of REE mineral assemblages from Bastnäs-type deposits. (A) Samp...
Published: 01 October 2007
), cerite, ferriallanite and törnebohmite. (C) Sample #970319, Malmkärra, with gadolinite, fluorbritholite (Flb) and dollaseite (Dla). (D) Sample #660298, Malmkärra, with västmanlandite (Väs), gadolinite, tremolite, cerite and magnetite (arrow).
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Variation of the &lt;M3-O&gt; and &lt;M1-O&gt; distances as a function of S...
Published: 01 November 2011
) in this study, the squares allanite- and dollaseite-subgroup minerals, the triangles Al-Mn 3+ piemontites, the circles Al-Fe 3+ epidote, and the inverted triangles others. Estimated standard deviations (1σ) of all data are considered to be smaller than the symbol size. Please see the footnote in Table 7 1 .
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BSE images of REE mineral assemblages from Bastnäs-type deposits. (A) Part...
Published: 01 October 2007
) Sample #520767, Johannagruvan, with gadolinite (Gad), tremolite (Tr), dollaseite (Dla) and fluorapatite (arrow). (C) Sample #540025, S. Hackspikgruvan, with molybdenite (Mlb), dissakisite (Dis) and fluorite (Fl). (D) Sample #880072 from Rödbergsgruvan with bastnäsite (Bas), amphibole (Amp
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List of  REE -minerals from the Malmkärra mine, after Holtstam and Andersso...
Published: 01 May 2018
) 7 Dissakisite-(Ce) Ca(Ce,La)MgAl 2 [Si 2 O 7 ][SiO 4 ]O(OH) Dollaseite-(Ce) Ca(Ce,La)Mg 2 Al[Si 2 O 7 ][SiO 4 ]F(OH) Fluorbritholite-(Ce) (Ce,Ca) 5 [SiO 4 ] 3 F Gadolinite-(Ce) Ce 2 Fe 2+ Be 2 Si 2 O 10 Gadolinite-(Nd) Nd 2 Fe 2+ Be 2 Si 2 O 10 Gadolinite-(Y) Y 2 Fe 2