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wagnerite

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Journal Article

The triplite–triploidite supergroup: structural modulation in wagnerite, discreditation of magniotriplite, and the new mineral hydroxylwagnerite Available to Purchase

Christian Chopin, Thomas Armbruster, Edward S. Grew, Alain Baronnet, Catherine Leyx, Olaf Medenbach
Published: 01 August 2014
European Journal of Mineralogy (2014) 26 (4): 553–565.
DOI: https://doi.org/10.1127/0935-1221/2014/0026-2386
...Christian Chopin; Thomas Armbruster; Edward S. Grew; Alain Baronnet; Catherine Leyx; Olaf Medenbach Abstract Electron-microprobe analysis, single-crystal X-ray diffraction with an area detector, and high-resolution transmission electron microscopy show that minerals related to wagnerite, triplite...
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View PDF for article title, The triplite–triploidite supergroup: structural modulation in <span class="search-highlight">wagnerite</span>, discreditation of magniotriplite, and the new mineral hydroxylwagnerite
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Journal Article

Wagnerite in a cordierite-gedrite gneiss: Witness of long-term fluid-rock interaction in the continental crust (Ile d’Yeu, Armorican Massif, France) Available to Purchase

Pavel Pitra, Philippe Boulvais, Vladimir Antonoff, Hervé Diot
Published: 01 February 2008
American Mineralogist (2008) 93 (2-3): 315–326.
DOI: https://doi.org/10.2138/am.2008.2597
...Pavel Pitra; Philippe Boulvais; Vladimir Antonoff; Hervé Diot Abstract We describe the first occurrence in the Variscan Belt of Western Europe of the relatively rare phosphate wagnerite, ideally Mg 2 PO 4 F. It occurs in albite-rich, cordierite-gedrite-bearing gneisses on the island of Ile d’Yeu...
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View PDF for article title, <span class="search-highlight">Wagnerite</span> in a cordierite-gedrite gneiss: Witness of long-term fluid-rock interaction in the continental crust (Ile d’Yeu, Armorican Massif, France)
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Journal Article

WAGNERITE- Ma 5 bc , A NEW POLYTYPE OF Mg 2 (PO 4 )(F,OH), FROM GRANULITE-FACIES PARAGNEISS, LARSEMANN HILLS, PRYDZ BAY, EAST ANTARCTICA Available to Purchase

Liudong Ren, Edward S. Grew, Ming Xiong, Zhesheng Ma
Published: 01 April 2003
The Canadian Mineralogist (2003) 41 (2): 393–411.
DOI: https://doi.org/10.2113/gscanmin.41.2.393
...Liudong Ren; Edward S. Grew; Ming Xiong; Zhesheng Ma Abstract Wagnerite- Ma 5 bc , a new polytype, occurs in paragneiss associated with banded cordierite–prismatine gneiss in the Larsemann Hills, East Antarctica. It forms anhedral to euhedral grains mostly 0.5–2 mm across, some with a tabular habit...
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View PDF for article title, <span class="search-highlight">WAGNERITE</span>- Ma 5 bc , A NEW POLYTYPE OF Mg 2 (PO 4 )(F,OH), FROM GRANULITE-FACIES PARAGNEISS, LARSEMANN HILLS, PRYDZ BAY, EAST ANTARCTICA
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Journal Article

Wagnerite in high-MgAl granulites of Anakapalle, Eastern Ghats Belt, India Available to Purchase

Ralf SIMMAT, Karen RICKERS
Published: 01 May 2000
European Journal of Mineralogy (2000) 12 (3): 661–666.
DOI: https://doi.org/10.1127/0935-1221/2000/0012-0661
...Ralf SIMMAT; Karen RICKERS Abstract Wagnerite ( Mg ,Fe,Ca,Mn) 2 [PO 4 (F,OH)] was found in high-MgAl granulite near Anakapalle, ca . 40 km W of Vishakhapatnam, East-India. This is the first reported occurrence of this mineral in the granulite-facies Eastern Ghats Belt (EGB). The high-MgAl granulite...
View PDF for article title, <span class="search-highlight">Wagnerite</span> in high-MgAl granulites of Anakapalle, Eastern Ghats Belt, India
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Journal Article

Wagnerite, an accessory phase in cordierite-anthophyllite gneiss from Star Lake, Manitoba Available to Purchase

Marc V. Leroux, T. Scott Ercit
Published: 01 December 1992
The Canadian Mineralogist (1992) 30 (4): 1161–1165.
View PDF for article title, <span class="search-highlight">Wagnerite</span>, an accessory phase in cordierite-anthophyllite gneiss from Star Lake, Manitoba
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Journal Article

Solid solution in the wagnerite structure Available to Purchase

Keunho Auh, F. A. Hummel
Published: 01 May 1974
The Canadian Mineralogist (1974) 12 (5): 346–351.
View PDF for article title, Solid solution in the <span class="search-highlight">wagnerite</span> structure
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The crystal structure of wagnerite-Ma3bc (space group P21/c) and the idealized crystal structures of wagnerite-Ma5bc (space group Ia), wagnerite-Ma7bc (space group P21), and wagnerite-Ma9bc (space group Ia), projected along a. Only PO4 moieties are displayed as tetrahedra. Large spheres represent M positions. Dark blue spheres are six-coordinated, light blue spheres are five-coordinated, lilac spheres are associated with disordered F, (OH) and their coordination is either five- or six-fold. Small red spheres are F. The F sites are arranged to crescents denoted A if open on top and B if open on bottom. Wagnerite-Ma3bc was refined in a centro-symmetric space group, thus for symmetry reasons the sequence of fluorine arcs became AXB instead of AAB or ABB. X denotes an overlay of A and B crescents. In Ma5bc, Ma7bc, and Ma9bc polytypes superimposition of arcs at the faulted interface is possible (not displayed) but this disorder is not required by symmetry.

The crystal structure of wagnerite- Ma3bc (space group P 2 1 / c ) and th... Available to Purchase

Published: 01 August 2014
Fig. 4 The crystal structure of wagnerite- Ma3bc (space group P 2 1 / c ) and the idealized crystal structures of wagnerite- Ma5bc (space group Ia ), wagnerite- Ma7bc (space group P 2 1 ), and wagnerite- Ma9bc (space group Ia ), projected along a. Only PO 4 moieties are displayed
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Configuration of F sites in wagnerite-Ma5bc, wagnerite-Ma2bc, magiotriplite and synthetic end-member zwieselite, Fe2PO4F (n.b.: c in triplite-group minerals corresponds to a in wagnerite-Ma5bc and wagnerite-Ma2bc), based on data from this paper, Coda et al. (1967), Tadini (1981), and Yakubovich et al. (1978), respectively. Individual F sites are represented by different colors (cf. Fig. 8); those in magniotriplite are only half occupied. Two possible configurations are indicated by heavy lines and white, filled circles in the diagram for magniotriplite.

Configuration of F sites in wagnerite- Ma 5 bc , wagnerite- Ma 2 bc , magio... Available to Purchase

Published: 01 April 2003
F ig . 9. Configuration of F sites in wagnerite- Ma 5 bc , wagnerite- Ma 2 bc , magiotriplite and synthetic end-member zwieselite, Fe 2 PO 4 F (n.b.: c in triplite-group minerals corresponds to a in wagnerite- Ma 5 bc and wagnerite- Ma 2 bc ), based on data from this paper, Coda et al
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(a) Triphylite-I replaced by wagnerite, lazulite, fluorarrojadite-(BaNa), and fluorapatite (sample NP-36, zone III). (b) Triphylite-I altered to wagnerite, fluorarrojadite-(BaNa), and fluorapatite (sample NP-88, zone IV). Abbr.: Trp-I – triphylite-I, Wag – wagnerite; Laz –lazulite; Ajt – fluorarrojadite-(BaNa), Fap – fluorapatite, FGWM – fine-grained white mica.

(a) Triphylite-I replaced by wagnerite, lazulite, fluorarrojadite-(BaNa), a... Open Access

Published: 01 March 2014
Fig. 5 (a) Triphylite-I replaced by wagnerite, lazulite, fluorarrojadite-(BaNa), and fluorapatite (sample NP-36, zone III). (b) Triphylite-I altered to wagnerite, fluorarrojadite-(BaNa), and fluorapatite (sample NP-88, zone IV). Abbr.: Trp-I – triphylite-I, Wag – wagnerite; Laz –lazulite; Ajt
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X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AN... Available to Purchase

Published: 01 April 2003
TABLE 4. X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AND MAGNIOTRIPLITE
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X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AN... Available to Purchase

Published: 01 April 2003
TABLE 4. X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AND MAGNIOTRIPLITE
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X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AN... Available to Purchase

Published: 01 April 2003
TABLE 4. X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AND MAGNIOTRIPLITE
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X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AN... Available to Purchase

Published: 01 April 2003
TABLE 4. X-RAY DIFFRACTION POWDER DATA FOR WAGNERITE- Ma5bc , WAGNERITE- Ma5bc , AND MAGNIOTRIPLITE
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Photomicrographs (plane-polarized light) of the cordierite-gedrite gneiss. (a) Large wagnerite crystal, partly including gedrite, surrounded by albite and cordierite, with inclusions of biotite and chlorite. (b) Cordierite enclosing crystals of biotite, chlorite, gedrite, ilmenite, pyrrhotite, and wagnerite. Biotite and chlorite coexist without replacing one another. (c) Anhedral relict of staurolite surrounded by cordierite. Small anhedral crystal of wagnerite partly including biotite in a matrix bearing oa + cd + bi + chl.

Photomicrographs (plane-polarized light) of the cordierite-gedrite gneiss. ... Available to Purchase

Published: 01 February 2008
F igure 4. Photomicrographs (plane-polarized light) of the cordierite-gedrite gneiss. ( a ) Large wagnerite crystal, partly including gedrite, surrounded by albite and cordierite, with inclusions of biotite and chlorite. ( b ) Cordierite enclosing crystals of biotite, chlorite, gedrite
Journal Article

Origin of coexisting wüstite, Mg–Fe and REE phosphate minerals in graphite-bearing fluorapatite from the Rumburk granite Available to Purchase

Wolfgang Seifert, Rainer Thomas, Dieter Rhede, Hans-Jürgen Förster
Published: 01 August 2010
European Journal of Mineralogy (2010) 22 (4): 495–507.
DOI: https://doi.org/10.1127/0935-1221/2010/0022-2034
...Wolfgang Seifert; Rainer Thomas; Dieter Rhede; Hans-Jürgen Förster Abstract An unique mineral assemblage (graphite + wüstite + wagnerite + sarcopside + monazite-(Ce) + xenotime-(Y) + chlorite), included within fluorapatite, was identified in the S-type Caledonian Rumburk granite, Czech Republic...
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View PDF for article title, Origin of coexisting wüstite, Mg–Fe and REE phosphate minerals in graphite-bearing fluorapatite from the Rumburk granite
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Journal Article

The crystal structure of althausite, Mg 4 (PO 4 ) 2 (OH,O)(F,☐) Available to Purchase

C. Roemming, G. Raade
Published: 01 June 1980
American Mineralogist (1980) 65 (5-6): 488–498.
... = 4. The cleavages in althausite, {001} perfect and {101} distinct, occur along planes crossing relatively few bonds and leave the chains of Mg octahedra unbroken. Bond-strength calculations for althausite and wagnerite are presented and the OH content in wagnerite is discussed. Preliminary results...
View PDF for article title, The crystal structure of althausite, Mg 4 (PO 4 ) 2 (OH,O)(F,☐)
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Diagram comparing chains of Mg polyhedra parallel to b in wagnerite-Ma5bc and wagnerite-Ma2bc, based on data from this paper and Coda et al.(1967), respectively. Red: MgO4(F,OH)2 octahedra, blue: MgO4(F,OH) trigonal bipyramids, turquoise spheres: O, black: (F,OH). “Like” and “unlike” refer to the edge-shared linkages (see text). The juxtaposition of two type-1 configurations (Fig. 9) is associated with the “unlike” linkage in wagnerite-Ma5bc.

Diagram comparing chains of Mg polyhedra parallel to b in wagnerite- Ma 5... Available to Purchase

Published: 01 April 2003
F ig . 8. Diagram comparing chains of Mg polyhedra parallel to b in wagnerite- Ma 5 bc and wagnerite- Ma 2 bc , based on data from this paper and Coda et al. (1967) , respectively. Red: MgO 4 (F,OH) 2 octahedra, blue: MgO 4 (F,OH) trigonal bipyramids, turquoise spheres: O, black: (F,OH
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Variation of distance between partially occupied F1 and F2 sites (a) and minimum cation – F distance (b) with average ionic radius of the M cation (based on the ionic radii of Shannon 1976) in minerals and synthetic analogues of the triplite group and wagnerite, based on the data of Coda et al. (1967), Waldrop (1969), Rea &amp; Kostiner (1972), Yakubovich et al.(1978), Tadini (1981), and our findings. Lines are least-squares fits excluding Fe2PO4F and wagnerite. The F1–F2 distance given for wagnerite-Ma2bc has been estimated from the F positions reported by Coda et al. (1967).

Variation of distance between partially occupied F 1 and F 2 sites (a) an... Available to Purchase

Published: 01 April 2003
F ig . 10. Variation of distance between partially occupied F 1 and F 2 sites (a) and minimum cation – F distance (b) with average ionic radius of the M cation (based on the ionic radii of Shannon 1976 ) in minerals and synthetic analogues of the triplite group and wagnerite, based
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Variation of distance between partially occupied F1 and F2 sites (a) and minimum cation – F distance (b) with average ionic radius of the M cation (based on the ionic radii of Shannon 1976) in minerals and synthetic analogues of the triplite group and wagnerite, based on the data of Coda et al. (1967), Waldrop (1969), Rea &amp; Kostiner (1972), Yakubovich et al.(1978), Tadini (1981), and our findings. Lines are least-squares fits excluding Fe2PO4F and wagnerite. The F1–F2 distance given for wagnerite-Ma2bc has been estimated from the F positions reported by Coda et al. (1967).

Variation of distance between partially occupied F 1 and F 2 sites (a) an... Available to Purchase

Published: 01 April 2003
F ig . 10. Variation of distance between partially occupied F 1 and F 2 sites (a) and minimum cation – F distance (b) with average ionic radius of the M cation (based on the ionic radii of Shannon 1976 ) in minerals and synthetic analogues of the triplite group and wagnerite, based
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Photomicrograph of wagnerite-Ma5bc (Wag, yellow and mostly tabular) in plagioclase (Pl). Secondary apatite (Ap) locally fringes wagnerite-Ma5bc; quartz (Qz) forms rounded grains. Mgt: magnetite, Ilm: ilmenite, Hem: hematite, Bt: biotite, Crn: corundum. Plane light.

Photomicrograph of wagnerite- Ma 5 bc (Wag, yellow and mostly tabular) in ... Available to Purchase

Published: 01 April 2003
F ig . 3. Photomicrograph of wagnerite- Ma 5 bc (Wag, yellow and mostly tabular) in plagioclase (Pl). Secondary apatite (Ap) locally fringes wagnerite- Ma5bc ; quartz (Qz) forms rounded grains. Mgt: magnetite, Ilm: ilmenite, Hem: hematite, Bt: biotite, Crn: corundum. Plane light.