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wyllieite group

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Journal Article
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 1087-1101.
...Frédéric Hatert; Miguel Galliski; Encarnación Roda-Robles; Pietro Vignola; André-Mathieu Fransolet Abstract Three samples of minerals belonging to the wyllieite mineral group were structurally investigated: wyllieite from the Buranga pegmatite, Rwanda (A); wyllieite from the Malpensata pegmatite...
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Journal Article
Published: 01 September 2005
European Journal of Mineralogy (2005) 17 (5): 741-747.
...Olga V. YAKUBOVICH; Werner MASSA; Polina G. GAVRILENKO; Olga V. DIMITROVA Abstract A new Mn-rich member in the wyllieite structural group has been synthesized by hydrothermal technique: Na 1.265 Mn 2+ 2.690 Mn 3+ 0.785 (PO 4 ) 3 ( a = 6.5291(6), b = 12.653(1), c = 10.952(1)Å, β = 97.18(1)°, space...
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REPRESENTATIVE EMP COMPOSITIONS OF APATITE AND <b>WYLLIEITE</b>-<b>GROUP</b> PHASES
Published: 23 October 2018
TABLE 12. REPRESENTATIVE EMP COMPOSITIONS OF APATITE AND WYLLIEITE-GROUP PHASES
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Compositional variation of <b>wyllieite</b>-<b>group</b> phases from pegmatite-1 compared...
Published: 23 October 2018
Fig. 14. Compositional variation of wyllieite-group phases from pegmatite-1 compared to data from the literature: R96 Roda et al . (1996) ; MI79 Moore & Ito (1979) ; F13 Frost et al . (2013) ; G09 Galliski et al . (2009) ; R-R12 Roda-Robles et al . (2012) ; M83 Ma et al . (1983) .
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Diagram representing the members of the <b>wyllieite</b> <b>group</b>, from which were re...
Published: 01 July 2016
Fig. 9. Diagram representing the members of the wyllieite group, from which were reported the electron-microprobe compositions of samples from the Albères Massif.
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Nomenclature of the <b>wyllieite</b> <b>group</b> of minerals. Chemical analyses of ferro...
Published: 01 September 2005
Fig. 6. Nomenclature of the wyllieite group of minerals. Chemical analyses of ferrorosemaryite from Rubindi are shown on this diagram (diamonds), as well as the analyses of wyllieites, ferrowyl-lieites, and rosemaryites given by Moore & Ito (1979) (triangles), Ek & Nysten (1990
Journal Article
Published: 01 November 2006
European Journal of Mineralogy (2006) 18 (6): 775-785.
... the presence of water in the channels of the wyllieite structure. A comparison of both the Mössbauer spectra and structural data of rosemaryite with those of other phosphates of the alluaudite and wyllieite groups, is also presented. 11 09 2006 14 03 2006 25 06 2006 © 2006 E...
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Journal Article
Published: 01 April 1974
American Mineralogist (1974) 59 (3-4): 280-290.
...Paul Brian More; JoAnn Molin-Case Abstract Wyllieite, ideally 4Na 2 Fe 2+ 2 Al[PO 4 ] 3 , a 11.868(15), b 12.382(12), c 6.354(9), β 114.52°(0.08°), space group P 2 1 / n , is a primary crystallized phase in pegmatites and is structurally related to the alluaudite mineral group. R ( hkl ) = 0.092...
Journal Article
Published: 01 June 2010
European Journal of Mineralogy (2010) 22 (3): 459-467.
...) 132̅; 112, 2.074(30) 313̅. Qingheiite-(Fe 2+ ) is the Fe 2+ analogue of qingheiite, and belongs to the wyllieite group of minerals. The crystal structure has been refined, based on single-crystal X-ray diffraction data, to R 1 = 2.91%. The mineral species and name were approved by the Commission on New...
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Journal Article
Published: 01 October 2009
The Canadian Mineralogist (2009) 47 (5): 1213-1223.
...Miguel Angel Galliski; Julio C. Oyarzábal; Maria Florencia Márquez-Zavalía; Ron Chapman Abstract Qingheiite, the Mg end-member of the wyllieite group of transition-metal phosphates, with a formula Na 2 MnMgAl(PO 4 ) 3 and known so far only from the type locality, was discovered in a new...
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Journal Article
Published: 01 September 2005
European Journal of Mineralogy (2005) 17 (5): 749-759.
...Fig. 6. Nomenclature of the wyllieite group of minerals. Chemical analyses of ferrorosemaryite from Rubindi are shown on this diagram (diamonds), as well as the analyses of wyllieites, ferrowyl-lieites, and rosemaryites given by Moore & Ito (1979) (triangles), Ek & Nysten (1990...
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Journal Article
Published: 01 October 1981
American Mineralogist (1981) 66 (9-10): 1034-1049.
...(2)°, space group A 2/ a , Z = 4. R = 0.078 for 7740 measured intensities. Of the 49 nonequivalent atoms in the asymmetric unit, fifteen are larger cations, whose coordination polyhedra include six symmetry-independent octahedra, one tetrahedron, one square pyramid, one seven-coordinated polyhedron...
Journal Article
Published: 01 June 2004
The Canadian Mineralogist (2004) 42 (3): 705-716.
... bobfergusonite crystal structure phosphate Argentina bobfergusonite structure cristalline phosphate Argentine Bobfergusonite is a phosphate mineral originally described by Ercit et al. (1986a , b ) from pegmatite #22 at Cross Lake, Manitoba. It is closely related to wyllieite-group...
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Journal Article
Published: 01 August 1981
American Mineralogist (1981) 66 (7-8): 827-842.
... 43.507(3)Å, Z = 18, space group R 3 . R = 0.069 for 6891 independent reflections. Forty-five nonequivalent atoms occur in the asymmetric unit. Nine distinct MO 6 octahedra, four distinct five-coordinate polyhedra, one seven-coordinate polyhedron, one eight-coordinate polyhedron and six distinct PO 4...
Journal Article
Published: 01 August 2012
The Canadian Mineralogist (2012) 50 (4): 913-931.
... in these nodules. One of them is beusite–wyllieite–sicklerite-rich (BWS), with varulite and staněkite among the main products of replacement, Fe/(Fe + Mn) values between 0.46 and 0.48 for sicklerite, and MgO values up to 2.14 wt%. The other association is lithiophilite–sicklerite-rich (LS), with varulite...
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Patterns of cation order in the alluaudite-<b>group</b> ( sensu lato ) structures:...
Published: 01 June 2004
F ig . 7. Patterns of cation order in the alluaudite-group ( sensu lato ) structures: (a) alluaudite with complete disorder; (b) alluaudite with complete order; (c) wyllieite with Al ordered at M (2b) and M 2+ + Fe 3+ disordered over M (1) and M (2a); (d) wyllieite with Al ordered at M
Journal Article
Published: 01 April 2013
American Mineralogist (2013) 98 (4): 767-772.
...Pietro Vignola; Frédéric Hatert; André-Mathieu Fransolet; Olaf Medenbach; Valeria Diella; Sergio Andò Abstract Karenwebberite, Na(Fe 2+ ,Mn 2+ )PO 4 , belongs to the triphylite group of minerals and corresponds to the Fe-equivalent of natrophilite or to the Na-equivalent of triphylite. It occurs...
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Journal Article
Published: 01 August 2006
American Mineralogist (2006) 91 (8-9): 1260-1270.
...Christian Chopin; Roberta Oberti; Fernando Cámara Abstract A systematic chemical and structural investigation of arrojadite-group minerals has provided new data allowing us to design a consistent nomenclature scheme, approved by the IMA CNMMN (vote 05-D). The cornerstones of this scheme are: (1...
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Journal Article
Published: 01 December 2018
Mineralogical Magazine (2018) 82 (6): 1307-1322.
...Adam Pieczka; Frank C. Hawthorne; Neil Ball; Yassir Abdu; Bożena Gołębiowska; Adam Włodek; Jan Żukrowski Abstract Two new minerals of the graftonite group, graftonite-(Mn), ideally M (1) Mn M (2), M (3) Fe 2 (PO 4 ) 2 , and graftonite-(Ca), ideally M (1) Ca M (2), M (3) Fe 2 (PO 4 ) 2 , were...
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Journal Article
Published: 28 February 2018
Mineralogical Magazine (2018) 82 (4): 863-876.
... 0.04 ) Σ1.00 Na 2 Na3 Na 0.46 M (Fe 7.16 Mn 5.17 Li 0.37 Mg 0.12 Sc 0.08 Zn 0.06 Ga 0.02 Ti 0.02 ) Σ13.00 Al 1.02 P 11 O 44 PO 3.46 (OH) 0.54 W (F 1.54 OH 0.46 ). Fluorarrojadite-(BaNa) is monoclinic, space group Cc , a = 16.563(1) Å, b = 10.0476(6) Å, c = 24.669(1) Å, β = 105.452(4)°, V = 3957.5(4) Å...
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